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Power Steering Pulleys

If your power steering pulley is bad, Turner Motorsport stocks quality replacement BMW parts to get your vehicle back on the road.
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Turner Motorsport Power Pulley Kit - E46 325i, E46 330i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:340397
Part#: PPK-E46-M54
Back Ordered
Sale - Save 15% $ 377.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 321.29 USD
Free Shipping
Sale - Save 15%
$ 377.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 321.29 USD
Free Shipping
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 5-10% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

* Alternator Pulley Options
Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

Additional Info
Clickhere for example dyno graph

Click here for installation instructions.


This underdrive pulley kit fits the following BMW:
2001-2006 E46 BMW 325i 325ci 325xi 330i 330ci 330xi
Show More Show Less
Turner Motorsport Power Pulley Kit - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:340398
Part#: PPK-S54
In Stock
Sale - Save 20% $ 412.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 330.39 USD
Free Shipping
Sale - Save 20%
$ 412.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 330.39 USD
Free Shipping
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing 10hp on the E46 M3. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

* Alternator Pulley Options
Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

Additional Info
ClickHere for example Dyno Chart

Click here for installation instructions.


This underdrive pulley kit fits the following BMW:
2001-2006 E46 M3 coupe & convertible
2001-2002 MZ3 Z3 M Roadster / Z3 M Coupe (S54 engine)
Show More Show Less
Turner Motorsport Power Pulley Kit - E36 325/M3, E34 525i (M50), MZ3 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:340390
Part#: PPK-E36
In Stock at Vendor
Sale - Save 24% $ 378.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 286.29 USD
Free Shipping
Sale - Save 24%
$ 378.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 286.29 USD
Free Shipping

Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3.

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

Alternator Pulley Options
(click to expand)
Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).
Aftermarket Stereo Systems
(click to expand)
We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.


Additional Info
Clickhere for example dyno graph

Click here for installation instructions.


This underdrive pulley kit fits the following BMW:
1991-1995 E34 5 Series 525i without servotronic steering and without self-leveling
1992-1995 E36 3 Series 325i, 325is, 325ic
1995-1995 E36 M3 3.0 liter (S50) **US models only, coupe
1996-1999 E36 M3 3.2 liter (S52) **US models only, coupe, sedan, convertible
1997-2000 MZ3 Z3 M Roadster & Z3 M Coupe (US models, S52US)
Show More Show Less

Turner Motorsport Power Pulley Kit - E60 M5 and E63/E64 M6 S85 V10 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:391019
Part#: PPK-S85KT
Ships on Aug 3, 2026
Sale - Save 25% $ 449.99

This product was last offered at the strikethrough price on
06-13-2026

$ 337.49 USD
Free Shipping
Sale - Save 25%
$ 449.99

This product was last offered at the strikethrough price on
06-13-2026

$ 337.49 USD
Free Shipping

Get MORE HORSEPOWER and TORQUE on your 2006 and newer M5 sedan or M6 coupe/convertible by replacing the stock crank pulley with this specially designed performance version. The Power Pulley reduces rotational mass and safely under drives your belt driven auxiliaries for reduced parasitic power loss. The end result: More power to your M5 or M6's rear wheels! Designed to give the best performance benefit with no sacrifices or compromises to your BMW's reliability. These have been tested on hundreds of cars before public release and there are simply NO DOWNSIDES to this upgrade.

Limited time introductory offer: FREE GROUND shipping on all orders shipped within the 48 contiguous states shipping on this V10 pulley kit.


CNC machined using aircraft grade 6061 aluminum billet, and anodized with a stealthy black coating. Others may advertise "their" crank pulley boasting higher numbers (using a smaller pulley profile), but we have concluded that for street and track driven M5 and M6, this is the best size and design to ensure proper engine temp and auxiliary functionality. As the S85 V10 engine doesn't use a traditional harmonic balancer, all factory harmonics and dampening are fully and properly retained. We've found this pulley alone adds 18 to 22 HP and 17 to 21 Ft/lbs Torque on a stock M5 or M6 with no other mods(!!).

The E60 M5 / E63 M6 Power Pulley Kit includes:
(1) Underdrive Crank Pulley
(1) Correctly Sized Drive Belt
(6) Allen Head Bolts
(1) Installation instructions

This underdrive pulley fits the following BMWs:
2006-2010 E60 M5 sedan
2006-2010 E63/E64 M6 coupe & convertible
 

Show More Show Less

Turner Motorsport Power Pulley Kit - E90/E92/E93 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:338810
Part#: TMS1805
Ships on Nov 25, 2026
Sale - Save 25% $ 546.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 410.24 USD
Free Shipping
Sale - Save 25%
$ 546.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 410.24 USD
Free Shipping
Get MORE HORSEPOWER and TORQUE on your 2008, 2009 and newer M3 coupe, sedan or convertible by replacing the stock crank pulley with this specially designed performance version. The Power Pulley reduces rotational mass and safely under drives your belt driven auxiliaries for reduced parasitic power loss. The end result: More power to your M3's rear wheels! Designed to give the best performance benefit with no sacrifices or compromises to your BMW's reliability. These have been tested on hundreds of cars before public release and there are simply NO DOWNSIDES to this upgrade.
Show More Show Less
Turner Motorsport Power Pulley Upgrade Kit - Z3 2.3/2.8 99-00 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:340403
Part#: PPK-Z3-M52TU
In Stock at Vendor
Sale - Save 26% $ 370.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 272.99 USD
Free Shipping
Sale - Save 26%
$ 370.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 272.99 USD
Free Shipping
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

* Alternator Pulley Options
Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

Additional Info
Clickhere for example dyno graph

Click here for installation instructions.


This underdrive pulley kit fits the following BMW:
1999-2000 Z3 BMW Z3 2.3 Z3 2.8
Show More Show Less

Turner Motorsport Power Pulley Kit - E36 323i/328i
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:340391
Part#: PPK-E36328
In Stock at Vendor
Sale - Save 26% $ 370.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 272.99 USD
Free Shipping
Sale - Save 26%
$ 370.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 272.99 USD
Free Shipping
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER ! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3.

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

* Alternator Pulley Options
Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

Additional Info
Clickhere for example dyno graph

Click here for installation instructions.


This underdrive pulley kit fits the following BMW:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic
Show More Show Less
Turner Motorsport Power Pulley Upgrade Kit - Z4 M Roadster & Coupe ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:3465
Part#: PPK-MZ4
In Stock
Sale - Save 25% $ 354.99

This product was last offered at the strikethrough price on
06-13-2026

$ 266.24 USD
Free Shipping
Sale - Save 25%
$ 354.99

This product was last offered at the strikethrough price on
06-13-2026

$ 266.24 USD
Free Shipping
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.



Additional Info
Clickhere for example dyno graph

Click here for installation instructions.

Turner Pulley Kit contents:
  • Turner water pump pulley
  • Turner power steering pump pulley
  • new extended length belt
  • instructions

    This underdrive pulley kit fits the following BMW:
    2006-2008 MZ4 Z4 M Coupe / Z4 M Roadster
  • Show More Show Less

    Turner Motorsport Power Pulley Upgrade Kit - Z3 3.0i 01-02
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340402
    Part#: PPK-Z3-30
    Back Ordered
    Sale - Save 24% $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping
    Sale - Save 24%
    $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping
    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options
    Bosch or Valeo?  BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info
    Clickhere for example dyno graph

    Click here for installation instructions.


    This underdrive pulley kit fits the following BMW:
    2001-2002 Z3 BMW Z3 3.0i
    Show More Show Less

    Turner Motorsport Race Alternator Pulley For E46 M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:388710
    Part#: TEN4622RM3
    In Stock
    Sale - Save 34% $ 215.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 143.53 USD
    Free Shipping
    Sale - Save 34%
    $ 215.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 143.53 USD
    Free Shipping
    For use with the stock VALEO M3 alternator only Part of the process of building a proper race car is to delete and simplify portions of the wiring harness. This not only saves weight and reduces complexity, but it also allows you to run a smaller, lighter racing battery. So why is your alternator still charging at the original rate?!? This S54 racing alternator pulley underdrives the alternator more than our standard Power Pulley, freeing up horsepower and reducing alternator wear. This pulley is over 70% larger than the original stock pulley. With less electrical load, you don't need the original alternator output anymore. You can drive the alternator less and return that "lost" horsepower back to the engine. This part was developed and race-proven on our E46 Touring Cars. Because this pulley is so much larger than the original (70%), special care will need to be taken so that it does not interfere wtih other components on the engine - power steering lines, oil cooler lines, coolant hoses, etc. This pulley is strictly for race/track cars only, due to the size of the alternator pulley the proper voltage cannot be maintained at low RPM. This pulley must be used with our Turner Power Pulley or Turner Racing Pulley kits.
    Show More Show Less
    Turner Motorsport Power Pulley Kit - E46 323i/328i
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340395
    Part#: PPK-E46
    In Stock at Vendor
    Sale - Save 26% $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Sale - Save 26%
    $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options
    Bosch or Valeo?  BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info
    Clickhere for example dyno graph

    Click here for installation instructions.


    This underdrive pulley kit fits the following BMW:
    1999-2000 E46 BMW 323i 323ci 328i 328ci
    Show More Show Less
    Turner Motorsport Power Pulley Kit - E39 525i/530i 01-02
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340394
    Part#: PPK-E39-M54
    Back Ordered
    Sale - Save 24% $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping
    Sale - Save 24%
    $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping

    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER!

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options

    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or as a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other critical-charging modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major upgrades from the factory premium systems will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the full 3-piece set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info

    Clickhere for example dyno graph

    Click here for installation instructions.

    Turner Pulley Kit contents:

     

    • Turner water pump pulley
    • Turner power steering pump pulley
    • Turner alternator pulley
    • new extended length belt
    • instructions


       
    • This underdrive pulley kit fits the following BMW:
      2001-2002 E39 BMW 525i 530i

     

    Show More Show Less


    Turner Motorsport Power Pulley Kit - E39 528i 97-98
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340392
    Part#: PPK-E39
    In Stock at Vendor
    Sale - Save 26% $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Sale - Save 26%
    $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping

    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER!

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options

    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or as a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other critical-charging modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major upgrades from the factory premium systems will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the full 3-piece set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info

    Clickhere for example dyno graph

    Click here for installation instructions.

    Turner Pulley Kit contents:

     

    • Turner water pump pulley
    • Turner power steering pump pulley
    • Turner alternator pulley
    • new extended length belt
    • instructions


       
    • This underdrive pulley kit fits the following BMW:
      1997-1998 E39 BMW 528i

     

    Show More Show Less
    Turner Motorsport Power Pulley Kit - E39 528i 99-00
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340393
    Part#: PPK-E39-M52TU
    In Stock at Vendor
    Sale - Save 26% $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Sale - Save 26%
    $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping

    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER!

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options

    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or as a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other critical-charging modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major upgrades from the factory premium systems will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the full 3-piece set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info

    Clickhere for example dyno graph

    Click here for installation instructions.

    Turner Pulley Kit contents:

     

    • Turner water pump pulley
    • Turner power steering pump pulley
    • Turner alternator pulley
    • new extended length belt
    • instructions



       
    •  
    • This underdrive pulley kit fits the following BMW:
      1999-2000 E39 BMW 528i

     

    Show More Show Less
    Turner Motorsport Power Pulley Upgrade Kit - Z3 2.8 97-98
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340400
    Part#: PPK-Z3
    In Stock at Vendor
    Sale - Save 26% $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Sale - Save 26%
    $ 370.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 272.99 USD
    Free Shipping
    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options
    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info
    Clickhere for example dyno graph

    Click here for installation instructions.


    This underdrive pulley kit fits the following BMW:
    1997-1998 Z3 BMW Z3 2.8
    Show More Show Less

    Turner Motorsport Power Pulley Upgrade Kit - Z3 2.5i 01-02
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340401
    Part#: PPK-Z3-25
    Back Ordered
    Sale - Save 22% $ 377.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 294.69 USD
    Free Shipping
    Sale - Save 22%
    $ 377.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 294.69 USD
    Free Shipping
    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER !

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options
    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: the full Power Pulley Kit with all 3 pulleys or a 2 pulley kit if you do not wish to underdrive your alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested for compatability with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system will work best with our 2 pulley kit and no underdriving of the alternator. For all stock stereo systems the 3 pulley set is recommended because the Turner alternator pulley will help make more power and is also much lighter than the stock pulley.

    Additional Info
    Clickhere for example dyno graph

    Click here for installation instructions.


    This underdrive pulley kit fits the following BMW:
    2001-2002 Z3 BMW Z3 2.5i
    Show More Show Less

    Turner Motorsport Power Pulley Kit - E53 X5 3.0 (M54)
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Turner Motorsport - Corporate Logo
    T#:340399
    Part#: PPK-X5M54
    Back Ordered
    Sale - Save 24% $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping
    Sale - Save 24%
    $ 369.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 281.39 USD
    Free Shipping

    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! It's like FREE HORSEPOWER!

    Underdrive pulleys for your BMW will slow down engine-mounted accessories - the water pump, power steering pump, and alternator*. These systems contribute to 'parasitic losses' - power lost from what the engine could produce if it did not have these systems. Since less energy is used to move them, that power is transferred back to the engine and used to propel the car. Our pulleys give a 10-20% reduction in rotation, releasing up to 11hp on most BMW six-cylinder engines. There's also a small but noticeable improvement in throttle response too! We have done extensive testing and development work, both on and off the track, to ensure that the accessory systems function as they should. On our Racing pulley kits we actually underdrive certain components more so we feel our Street pulleys are an ideal compromise between power/torque gains, reliability, and system performance. Our pulley kits have been on the market for over ten years, and used in all of our own cars, with zero component failures related to their use.

    Our pulleys are made from T-6061 aluminum and finished in a durable black hard anodize that is very resistant to wear, chemical exposure, and heat. We designed our pulleys to look similar to the factory parts but also to be stronger and, in most cases, slightly lighter too. For example, a Turner alternator pulley is less than half the weight of the stock steel pulley! With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.

    * Alternator Pulley Options

    Bosch or Valeo? BMW built your car with either a Bosch or Valeo brand alternator. Unfortunately, the pulley is not the same for both brands. The brand is usually printed on the black plastic cover of the alternator but may be facing the frame rail or the ground. If you know which brand you have, select your option below and we'll send you the correct alternator pulley for your BMW. Don't know which you have? NO PROBLEM! We can send you both. The 2nd pulley costs $40 but you will receive a refund once we get the un-used pulley back (return shipping not included).

    Stereo Systems. We offer our kits in two different ways: a full power kit with all 3 pulleys or a 2 pulley kit for people who do not wish to underdrive their alternator (for large stereo systems or other battery-draining modifications). Our kits have been tested to be compatible with the factory premium stereo systems (Harmon Kardon, etc). But any major alterations or upgrades from the factory system may work best with our 2 pulley kit and no underdrive of the alternator. Otherwise, the 3 pulley kit is recommended because it not only underdrives the alternator but the Turner pulley is much lighter than the stock one.


    Additional Info

    Clickhere for example dyno graph

    To learn more about Turner Power Pulleys, click here.

     

     


    This Power Pulley Kit Fits the Following BMWs:
    2000-2006 E53 BMW X5 3.0i

     

     

    Show More Show Less
    Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Vargas Turbo Technologies - Corporate Logo
    T#:558795
    Part#: VTT-CRANKHUB-1
    In Stock
    $ 889.99 USD
    Free Shipping
    $ 889.99 USD
    Free Shipping
    Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.
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    URO Premium Power Steering Pulley - Aluminum - E60, E61, E82, E88, E9...
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    URO Premium - Corporate Logo
    T#:592384
    Part#: 32427537862
    In Stock
    $ 63.99 USD
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    Commonly damaged during pump removal, the power steering pulley needs to be perfectly true and round to avoid throwing a belt. Replacement alleviates problems associated with a damaged pulley.
    Aluminum Power Steering Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    2X Entries For Our G87 M2 Sweepstakes!
    URO Premium - Corporate Logo
    T#:587735
    Part#: 32427838220PRM
    In Stock
    $ 70.99 USD
    Free Shipping on orders $49 and up
    Replacement power steering pump pulley

    MMX Crank Hub Capture Plate - Black - S55
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    MMX Performance - Corporate Logo
    T#:4552069
    Part#: MMR20-1002
    Ships in 7 Business Days
    $ 187.99 USD
    Free Shipping
    $ 187.99 USD
    Free Shipping
    Anyone with a modified S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. This capture plate can be secured to the OEM crank bolt or to MMR's redesigned one-piece crank hub. *Installation recommended by a professional shop or technician.
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    Aluminum Power Steering Pulley - Priced Each | BMW E8X E9X N54 3.0L ...
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    URO Premium - Corporate Logo
    T#:587734
    Part#: 32427553955PRM
    In Stock
    $ 50.99 USD
    Free Shipping on orders $49 and up

    Aluminum Power Steering Pulley - Priced Each | BMW E8X E9X N54 3.0L is a high-quality replacement pulley designed to restore optimal performance to your BMW's power steering system. This durable, aluminum pulley ensures smooth operation of the power steering pump, making steering more responsive and efficient. Whether your vehicle is equipped with active steering or not, this pulley is designed for a perfect fit and enhanced performance, ensuring long-lasting reliability and reducing the risk of premature failure.

    • Direct replacement for the power steering pump pulley in BMW E8X and E9X N54 3.0L models
    • Compatible with both active and non-active steering systems
    • Made from lightweight, durable aluminum for improved performance and longevity
    • Designed to ensure smooth and precise steering responsiveness
    • Reduces wear on the power steering pump and extends its service life
    • Easy installation with OEM-level fitment for hassle-free replacement
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    VTT Billet Power Steering Pulley - N54
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    Vargas Turbo Technologies - Corporate Logo
    T#:7292042
    Part#: VTT-N54-PSN54
    Ships in 2 Business Days
    Starting at $ 56.99 USD
    Free Shipping on orders $49 and up
    Starting at $ 56.99 USD
    Free Shipping on orders $49 and up
    Vargas has introduced their new Billet Power Steering pulleys for the N54 engine! A well-known issue with the N54 with Hydraulic power steering is the plastic pulley either hitting the subframe, or breaking on its own. This can result in the belt to be ejected from the pulley, and leave you stranded with no serpentine belt. This also increases the chance of sucking the belt into the engine through the front seal. Put an end to the dreaded plastic PS pulley issues with the VTT 100% Billet Aluminum PS pulley. These are constructed from 6061-T6 aluminum and anodize in one of 4 colors (Black, Red, Blue, and Clear) for a great look, and long-lasting finish. These weigh 11oz, very close to the weight of a stock pulley, and are lighter than the cast aluminum versions on the market.
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    BMW Power Steering Pully - 32427830838
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    Atlantic Automotive Engineering - Corporate Logo
    T#:45757458
    Part#: 32427830838
    Ships in 2 Business Days
    $ 50.99 USD
    Free Shipping on orders $49 and up
    A new power steering pulley is key to keeping your steering system smooth and reliable. Over time, pulleys can warp, crack, or wear, causing belt slippage, whining noises, or even pump failure. Installing a fresh pulley restores correct belt alignment, eliminates noise, and maintains consistent hydraulic pressure for precise, effortless steering. Why choose a new pulley? Smooth operation – Ensures proper belt tension for dependable pump performance. Noise reduction – Eliminates squealing, whining, or vibration from worn pulleys. System protection – Protects the pump and steering components from damage. Install a new pulley and keep your steering system running quietly, efficiently, and confidently.
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    MMR One-Piece Crank Hub - S55
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    MMX Performance - Corporate Logo
    T#:4565823
    Part#: MMR20-1001
    Ships in 2 Business Days
    $ 730.99 USD
    Free Shipping
    $ 730.99 USD
    Free Shipping
    Anyone with a modified S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMX has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Can also be paired with MMR's Performance Capture Plate to ensure against loosening of the crank bolt. *Installation recommended by a professional shop or technician.
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    Active Autowerke Power Pulley Kit - E9x M3
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    For vehicles with production date 2007-5/2008
    Active Autowerke - Corporate Logo
    T#:397285
    Part#: 13-001
    Ships in 4 Business Days
    5% off MSRP $ 399.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 379.99 USD
    Free Shipping
    5% off MSRP
    $ 399.00

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 379.99 USD
    Free Shipping
    Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.
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    MMR Crank Hub Kit - N55/S55
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    MMX Performance - Corporate Logo
    T#:4565824
    Part#: MMR20-1003FK
    Ships in 3 Business Days
    $ 849.99 USD
    Free Shipping
    $ 849.99 USD
    Free Shipping
    Anyone with a modified N55/S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the N55/S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Included in this kit is MMR's T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. *Installation recommended by a professional shop or technician.
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    Rogue Engineering Power Pulley - E46 (Non-M)
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    Rogue Engineering - Corporate Logo
    T#:554021
    Part#: P.E46
    Ships on Jul 29, 2026
    $ 225.00 USD
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    $ 225.00 USD
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    Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

    Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

    Fits the following BMWs:
    2000-2006 E46 BMW 323/325/328/330

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    Power Steering Pump Pulley
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    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:592383
    Part#: 32421722555
    Ships in 2 Business Days
    $ 90.99 USD
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    $ 90.99 USD
    Free Shipping
    Driven by serpentine accessory belt
    Rogue Engineering Power Pulley Set - S54 - E46 M3, Z3/Z4 M
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    Rogue Engineering - Corporate Logo
    T#:553971
    Part#: PP.S54
    In Stock
    $ 259.00 USD
    Free Shipping
    $ 259.00 USD
    Free Shipping

    Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

    Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

    This part fits the following BMW engines:
    S54

    This part fits the following chassis:
    E46, Z3, Z4

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    Genuine BMW Power Steering Pulley
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    Genuine BMW - Corporate Logo
    T#:58558
    Part#: 32421736934
    In Stock
    9% off MSRP $ 64.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 59.99 USD
    Limited Qty Sale
    Free Shipping on orders $49 and up
    9% off MSRP
    $ 64.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 59.99 USD
    Limited Qty Sale
    Free Shipping on orders $49 and up


    Genuine BMW Pulley - D=105mm
    This item fits the following BMW Chassis:
    E34,E38,E39

    Rogue Engineering Power Pulley Set - E9X M3 (up to 05/2008)
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    Rogue Engineering - Corporate Logo
    T#:553840
    Part#: PP.S65.V8.A
    Ships in 8 Business Days
    $ 295.00 USD
    Free Shipping
    $ 295.00 USD
    Free Shipping
    Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.
    Show More Show Less

    BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) ...
    Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Call In, Chat, Or Email, For Best Price! Limited Time Only!
    Dinan - Corporate Logo
    T#:586064
    Part#: D561-0002
    Ships in 6 Business Days
    11% off MSRP $ 142.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 126.99 USD
    Free Shipping
    11% off MSRP
    $ 142.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 126.99 USD
    Free Shipping

    BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) is an essential component designed specifically for the Underdrive Pulley Kit. This belt is one of the two required for optimal performance of the kit.

    • Designed for Precision: Tailored to fit the BMW E9X M3 Underdrive Pulley Kit perfectly.
    • High-Quality Construction: Built to withstand the demands of high-performance driving.
    • Optimal Performance: Ensures smooth operation and reliable power delivery.
    • Easy Replacement: Simple to install, making maintenance straightforward.
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    URO Premium Aluminuim Power Steering Pulley - BMW E38 E39 E53 M62 4.4...
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    URO Premium - Corporate Logo
    T#:376846
    Part#: 32421437990
    Ships in 2 Business Days
    $ 30.99 USD
    Free Shipping on orders $49 and up
    $ 30.99 USD
    Free Shipping on orders $49 and up
    Original plastic pulleys generally fatigue and fail with time and abuse. This stronger aluminum pulley uses a stock belt and hardware and is much stronger than the original plastic design.
    Genuine BMW Power Steering Pulley - S54
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    Genuine BMW - Corporate Logo
    T#:19787
    Part#: 32427830838
    In Stock at Vendor
    $ 167.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 136.99 USD
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    $ 136.99 USD
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    Genuine BMW Pulley
    This item fits the following BMW Chassis:
    E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

    Replacement Belt For Underdrive Pulley Kit D560-0003 & D560-0004 ...
    Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Dinan - Corporate Logo
    T#:586065
    Part#: D561-0007
    Ships in 6 Business Days
    11% off MSRP $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 95.99 USD
    Free Shipping
    11% off MSRP
    $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 95.99 USD
    Free Shipping


    Rogue Engineering Power Pulley Set - E9X M3 (05/2008+)
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Rogue Engineering - Corporate Logo
    T#:553839
    Part#: PP.S65.V8.B
    Ships in 5 Business Days
    $ 295.00 USD
    Free Shipping
    $ 295.00 USD
    Free Shipping
    Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent. The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories. These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.
    Show More Show Less
    Genuine BMW Power Steering Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:58567
    Part#: 32427508865
    In Stock at Vendor
    $ 207.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 201.99 USD
    Free Shipping
    $ 201.99 USD
    Free Shipping


    Genuine BMW Pulley - D=108,5mm
    This item fits the following BMW Chassis:
    E53 48IS,E53 X5,E63

    Genuine BMW Power Steering Pulley - E83 E60 530i E60 525i
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    Genuine BMW - Corporate Logo
    T#:58570
    Part#: 32427516848
    Ships in 3 Business Days
    3% off MSRP $ 111.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 108.99 USD
    Free Shipping
    3% off MSRP
    $ 111.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 108.99 USD
    Free Shipping


    Genuine BMW Pulley - D=116mm
    This item fits the following BMW Chassis:
    E83 X3


    Febi Crank Pulley With Harmonic Balancer - E53, E60, E63, E64, E65, E...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:382330
    Part#: 11237568345
    Ships in 1-2 days
    $ 184.81 USD
    Free Shipping
    $ 184.81 USD
    Free Shipping
    Drives accessories; located at the end of the crankshaft

    Genuine BMW Power Steering Pump Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:19789
    Part#: 32421722555
    Ships in 3 Business Days
    3% off MSRP $ 488.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 473.99 USD
    Free Shipping
    3% off MSRP
    $ 488.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 473.99 USD
    Free Shipping


    Genuine BMW Pulley - F. Zf
    This item fits the following BMW Chassis:
    E36 M3,E34,E36

    Genuine BMW Power Steering Pulley - E82 E84 E90 E92 E93 N55 3.0L ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:58581
    Part#: 32427582947
    Ships in 3 Business Days
    6% off MSRP $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 100.99 USD
    Free Shipping
    6% off MSRP
    $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 100.99 USD
    Free Shipping


    Genuine BMW Pulley -
    This item fits the following BMW Chassis:
    E82,E90,E92,E93


    Genuine BMW Power Steering Pulley - E82 E88 E90 E92 E93 N54 3.0L ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:58574
    Part#: 32427553955
    Ships in 6 Business Days
    6% off MSRP $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 100.99 USD
    Free Shipping
    6% off MSRP
    $ 107.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 100.99 USD
    Free Shipping


    Genuine BMW Pulley
    This item fits the following BMW Chassis:
    E82 1M Coupe,E82,E90,E92,E93

    Rogue Engineering Racing Power Pulley Set - S54 - E46 M3, Z3/Z4 M ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Rogue Engineering - Corporate Logo
    T#:553959
    Part#: PP.S54.RACE
    Ships in 10 Business Days
    $ 599.00 USD
    Free Shipping
    $ 599.00 USD
    Free Shipping

    Rogue Engineering has developed a power pulley kit that reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This allows for perfect operation in daily driven vehicles without a hiccup or stutter. However, when the demand for power is requested, the power pulley kit allows for the freed power to become apparent.  The term "power" pulley is a bit of a misnomer. Underdrive pulleys actually free up power by reducing the drag caused by the accessories.  These pulleys are based off a calculated percentage from factory dimensions, so that particular component speeds are safely reduced without affecting their true purpose.

    Rogue Engineering Power Pullies are CNC machined from 6061-T6, heat treated aluminum and specially coated with a MIL-A-8625 Type III hard coat anodize finish. This kind of anodizing is not to be confused with a Type II cosmetic anodize finish (typical colors such as red, blue, silver, green, etc.). The hard coat anodize finish actually builds a small surface layer on top of the aluminum, preventing wear.

    This part fits the following BMW engines:
    S54

    This part fits the following chassis:
    E46, Z3, Z4

    Show More Show Less

    E46 M3 Power Package - Shark Injector, Power Pulleys, & IAT Relocatio...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:393209
    Part#: E46S54SIPULLEY
    Ships on Aug 11, 2026
    Sale - Save 16% $ 1,029.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 870.23 USD
    Free Shipping
    Sale - Save 16%
    $ 1,029.99

    This product was last offered at the strikethrough price on
    05-03-2026

    Starting at $ 870.23 USD
    Free Shipping

    Shark Injector Performance Software
    The enthusiast's choice for over a decade, the Shark Injector's performance is only equaled by its own ease of install! Tune your ECU at the press of a button simply by plugging into the under-dash OBDII diagnostic port, there is no removal of your car's computer; no laptop or cables required. What does the Shark offer?

    • Excellent horsepower and torque gains - peak: 18whp/11wtq, max: 22whp/16wtq
    • Faster and smoother throttle response
    • Top speed limiter removed
    • Extremely easy to install/uninstall
    • Reversible and reusable
    • Elevated 8,250 RPM rev limiter
    • Compatible with 91 octane; 93 recommended

    Turner Motorsport Power Pulleys 
    Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3. Race pulleys deliver even more power. 

    Another "no-downside" upgrade, we even include a new belt. Total install time for a 3-piece pulley set should be around 1.5 hours. We offer three options in pulleys:
    1.) No alternator pulley included - for cars with big amps and powerful stereo systems that need the extra juice.
    2.) Street Power Pulleys - our most popular option with no downside!
    3.) Race Power Pulleys - delivering 15 "free" horsepower, this set underdrives the water pump, power steering pulley, and alternator for lower temps, less wear, and more power. Not for street use. 

     

     

    Intake Air Temperature Relocation Kit
    Looking to maximize your power gains? Add a Turner IAT Relocation to combat power-robbing heat soak - the only true plug-and-play solution available. Heat soak is a real plague on consistent power for a stock or tuned vehicle. Click here to read more about our IAT relocation kit.

     

    This item fits the following BMWs:
    2001-2006 E46 BMW M3

     

    Show More Show Less

    Rein Aluminum Power Steering Pump Pulley - E60, E83 - M54, N52 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Rein - Corporate Logo
    T#:53750204
    Part#: PKP0123
    Ships in 4 Business Days
    New Item
    $ 61.99 USD
    Free Shipping on orders $49 and up
    $ 61.99 USD
    Free Shipping on orders $49 and up
    Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein
    BMW Power Steering Pully - 32421736934
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Atlantic Automotive Engineering - Corporate Logo
    T#:45757462
    Part#: 32421736934
    Ships in 4 Business Days
    $ 45.99 USD
    Free Shipping on orders $49 and up
    $ 45.99 USD
    Free Shipping on orders $49 and up
    A new power steering pulley is key to keeping your steering system smooth and reliable. Over time, pulleys can warp, crack, or wear, causing belt slippage, whining noises, or even pump failure. Installing a fresh pulley restores correct belt alignment, eliminates noise, and maintains consistent hydraulic pressure for precise, effortless steering. Why choose a new pulley? Smooth operation – Ensures proper belt tension for dependable pump performance. Noise reduction – Eliminates squealing, whining, or vibration from worn pulleys. System protection – Protects the pump and steering components from damage. Install a new pulley and keep your steering system running quietly, efficiently, and confidently.
    Show More Show Less
    Replacement Belt For Underdrive Pulley Kit D560-0003
    Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Dinan - Corporate Logo
    T#:586063
    Part#: D561-0003
    Ships in 6 Business Days
    11% off MSRP $ 71.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 63.99 USD
    Free Shipping
    11% off MSRP
    $ 71.99

    MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

    $ 63.99 USD
    Free Shipping


    Rein Power Steering Pulley E88 135i, E90 335i/335xi, E84 X1 35i xDriv...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:34147755
    Part#: 32427582947
    Ships in 4 Business Days
    $ 71.99 USD
    Free Shipping on orders $49 and up

    Power Steering Pulley is a vital component in your BMW’s power steering system, designed to maintain smooth and responsive steering performance. Available from Turner Motorsport, this high-quality pulley ensures the efficient operation of your power steering pump by providing optimal belt tension and reducing wear. Built to OEM specifications, the Power Steering Pulley is a direct-fit replacement, making installation easy and hassle-free for BMW owners and mechanics alike.

    Made from durable materials, this pulley is designed to withstand the rigors of daily driving, offering long-lasting performance and reliability. It’s the perfect solution for those looking to restore or maintain the functionality of their BMW’s power steering system.

    Key Benefits:

    • Ensures smooth and efficient power steering operation
    • Direct OEM fit for easy installation
    • Reduces wear on the power steering belt and pump
    • Made from durable materials for long-lasting performance
    • Available from Turner Motorsport, a trusted source for BMW parts

    This Power Steering Pulley is an essential part for maintaining the functionality and reliability of your BMW’s power steering system.

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    BMW Power Steering Pully - 32427558757
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Atlantic Automotive Engineering - Corporate Logo
    T#:45757465
    Part#: 32427558757
    In Stock at Vendor
    $ 42.99 USD
    Free Shipping on orders $49 and up
    A new power steering pulley is key to keeping your steering system smooth and reliable. Over time, pulleys can warp, crack, or wear, causing belt slippage, whining noises, or even pump failure. Installing a fresh pulley restores correct belt alignment, eliminates noise, and maintains consistent hydraulic pressure for precise, effortless steering. Why choose a new pulley? Smooth operation – Ensures proper belt tension for dependable pump performance. Noise reduction – Eliminates squealing, whining, or vibration from worn pulleys. System protection – Protects the pump and steering components from damage. Install a new pulley and keep your steering system running quietly, efficiently, and confidently.
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