BMW Drive Belts & V-Belts for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

Please ensure your correct model is selected

Your BMW's drive belts are wear items, and will degrade and crack over time. Don't wait until you have a belt failure... don't get stranded! Replacing your BMW's belts, such as the alternator belt, power steering belt, air conditioning AC belt, or serpentine belt is a low cost insurance policy to preventing a break down -- or worse, engine damage. We recommend checking your belts every 10,000 miles. If your belts have excessive cracks, dry rot, missing teeth and/or grooves, are cause noise, it's time for new ones.

While also inspecting your serpentine belts, also check for wear or resistance in the pulleys. The tensioner pulley and deflection pulley are the primary sources for belt squealing. The rubber-isolated pulleys can also break apart, leading to total belt failure. We sell the tensioner and deflection pulleys for the M50 engine family used in the E34, E36, E39, E46, X5, Z3, and Z4.

Sub-Categories

Sort By:
Turner Motorsport Power Pulley Kit - E46 M3
Turner Motorsport Power Pulley Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:340398
Part#: PPK-S54
Ships on Jan 11, 2027
Sale - Save 30% $ 412.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 289.09 USD
Free Shipping
Add to Wish List
Sale - Save 30%
$ 412.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 289.09 USD
Free Shipping
Add to Wish List
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 - E46 325i, E46 330i
Turner Motorsport Power Pulley Kit - E46 325i, E46 330i
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:340397
Part#: PPK-E46-M54
In Stock
Sale - Save 20% $ 377.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 302.39 USD
Free Shipping
Add to Wish List
Sale - Save 20%
$ 377.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 302.39 USD
Free Shipping
Add to Wish List
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 S54 Power Pulley Kit
Turner Motorsport S54 Power Pulley Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:590358
Part#: PPK-S54
Ships on Jan 11, 2027
Sale - Save 30% $ 418.99

This product was last offered at the strikethrough price on
11-07-2026

$ 293.29 USD
Free Shipping
Add to Wish List
Sale - Save 30%
$ 418.99

This product was last offered at the strikethrough price on
11-07-2026

$ 293.29 USD
Free Shipping
Add to Wish List

Upgrade your BMW's performance with Turner Power Pulleys, designed to enhance engine efficiency and increase available horsepower. These pulleys reduce the rotation of essential accessories by up to 10-20%, redirecting engine power to the wheels. Turner ensures these pulleys maintain proper functionality through rigorous on and off-track testing.

Crafted from durable T-6061 aluminum and finished in black hard anodizing, Turner Power Pulleys offer longevity, heat resistance, and chemical durability. They retain the stock-like appearance while providing increased strength and reduced weight, eliminating concerns about plastic failure.

Show More Show Less
Turner Motorsport Power Pulley Kit - E46 323i/328i
Turner Motorsport Power Pulley Kit - E46 323i/328i
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:340395
Part#: PPK-E46
In Stock
Sale - Save 22% $ 373.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 292.81 USD
Free Shipping
Add to Wish List
Sale - Save 22%
$ 373.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 292.81 USD
Free Shipping
Add to Wish List
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
BWM E46 M3 Turner Motorsport Power Pulley Kit
BWM E46 M3 Turner Motorsport Power Pulley Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:343815
Part#: PPK-S54-A-TKT
Ships on Jan 11, 2027
Sale - Save 30% $ 354.99

This product was last offered at the strikethrough price on
11-07-2026

$ 248.49 USD
Free Shipping
Add to Wish List
Sale - Save 30%
$ 354.99

This product was last offered at the strikethrough price on
11-07-2026

$ 248.49 USD
Free Shipping
Add to Wish List

BWM E46 M3 Turner Motorsport Power Pulley Kit

Enhance the performance of your BMW E46 M3 with the Turner Motorsport Power Pulley Kit. This high-quality kit offers several benefits to improve the power and responsiveness of your vehicle. Here are the key advantages:

  • Increases engine power output for enhanced performance
  • Improves throttle response and acceleration
  • Reduces rotational mass for improved engine efficiency
  • Easy to install with included instructions

Upgrade your BMW E46 M3 with the Turner Motorsport Power Pulley Kit for an exhilarating driving experience.

Show More Show Less
BMW E46 Z3 M54 Turner Motorsport Power Pulley Kit - 325i/330i
BMW E46 Z3 M54 Turner Motorsport Power Pulley Kit - 325i/330i ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:187020
Part#: PPK-E46-M54
In Stock
Sale - Save 20% $ 377.99

This product was last offered at the strikethrough price on
11-07-2026

$ 302.39 USD
Free Shipping
Add to Wish List
Sale - Save 20%
$ 377.99

This product was last offered at the strikethrough price on
11-07-2026

$ 302.39 USD
Free Shipping
Add to Wish List

NOW LOCATED UNDER T#340397

BMW E46 Z3 M54 Turner Motorsport Power Pulley Kit - 325i/330i: Boost Your BMW's Performance

  • Increases horsepower and torque
  • Improves throttle response
  • Lightweight aluminum construction
  • Easy to install with basic tools

Upgrade your BMW's performance with the BMW E46 Z3 M54 Turner Motorsport Power Pulley Kit - 325i/330i. This kit increases horsepower and torque, resulting in improved acceleration and overall driving experience. The lightweight aluminum construction reduces rotational mass, enhancing throttle response and engine performance. Installation is easy with basic tools, making it a convenient upgrade for BMW enthusiasts.

Show More Show Less
Turner Motorsport Race Alternator Pulley For E46 M3
Turner Motorsport Race Alternator Pulley For E46 M3
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:388710
Part#: TEN4622RM3
In Stock
Sale - Save 15% $ 220.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 187.84 USD
Free Shipping
Add to Wish List
Sale - Save 15%
$ 220.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 187.84 USD
Free Shipping
Add to Wish List
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
BMW E46 Z3 Turner Motorsport Power Pulley Kit 325i/330i Valeo Alternator"
BMW E46 Z3 Turner Motorsport Power Pulley Kit 325i/330i Valeo Alterna...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:301180
Part#: TMS301180
In Stock
Sale - Save 25% $ 372.99

This product was last offered at the strikethrough price on
11-07-2026

$ 279.74 USD
Free Shipping
Add to Wish List
Sale - Save 25%
$ 372.99

This product was last offered at the strikethrough price on
11-07-2026

$ 279.74 USD
Free Shipping
Add to Wish List

Enhance your BMW's performance with the BMW E46 Z3 Turner Motorsport Power Pulley Kit 325i/330i Valeo Alternator. This high-quality power pulley kit is designed to increase horsepower and torque by reducing parasitic drag on the engine. With easy installation and precise fitment, this kit is a must-have upgrade for any BMW E46 or Z3 owner.

  • Increases horsepower and torque
  • Reduces parasitic drag on the engine
  • Easy installation process
  • Precise fitment ensures optimal performance
Show More Show Less
BMW E46 M3 Race Alternator Pulley Turner Motorsport
BMW E46 M3 Race Alternator Pulley Turner Motorsport
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:389737
Part#: TEN4622RM3KT
Ships on Jan 11, 2027
Sale - Save 5% $ 211.99

This product was last offered at the strikethrough price on
11-07-2026

$ 201.39 USD
Free Shipping
Add to Wish List
Sale - Save 5%
$ 211.99

This product was last offered at the strikethrough price on
11-07-2026

$ 201.39 USD
Free Shipping
Add to Wish List

BMW E46 M3 Race Alternator Pulley Turner Motorsport

Enhance the performance of your BMW E46 M3 with the BMW E46 M3 Race Alternator Pulley from Turner Motorsport. Engineered for racing enthusiasts, this alternator pulley reduces rotational mass for improved engine response and horsepower gains. Crafted from high-quality materials, it ensures durability and reliability on the track. Upgrade your BMW E46 M3's performance with this premium race alternator pulley.

  • Reduces rotational mass for improved engine response
  • Increases horsepower gains
  • High-quality materials ensure durability and reliability
  • Designed for racing enthusiasts
Show More Show Less
BMW E46 Turner Motorsport Power Pulley Kit
BMW E46 Turner Motorsport Power Pulley Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:395842
Part#: PPK-E46TU-VALEO
In Stock
Sale - Save 25% $ 382.99

This product was last offered at the strikethrough price on
11-07-2026

$ 287.24 USD
Free Shipping
Add to Wish List
Sale - Save 25%
$ 382.99

This product was last offered at the strikethrough price on
11-07-2026

$ 287.24 USD
Free Shipping
Add to Wish List

BMW E46 Turner Motorsport Power Pulley Kit

Improve the performance of your BMW E46 with the BMW E46 Turner Motorsport Power Pulley Kit. This high-quality pulley kit is designed to increase horsepower and torque by reducing parasitic drag on the engine. Here are the key benefits:

  • Increases horsepower and torque for improved acceleration
  • Reduces parasitic drag on the engine for enhanced efficiency
  • Precision-engineered for a perfect fit and easy installation
  • Durable construction ensures long-lasting performance

Enhance the performance and driving experience of your BMW E46 with the BMW E46 Turner Motorsport Power Pulley Kit.

Show More Show Less
OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 E60 E46 E83 Z3 Z4
OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 ...
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:363804
Part#: 11287838797
Ships on Feb 10, 2027
$ 83.99 USD
Free Shipping
Add to Wish List
$ 83.99 USD
Free Shipping
Add to Wish List
The Hydraulic Alternator Belt Tensioner is exposed to a lot of dirt, salt, and other debris due to its front lower location. This can cause the tensioner to seize and not allow the belt tensioner to adjust. Replace your belt tensioner with this OEM high quality hydraulic tensioner for many years of reliable operation to come.
Show More Show Less
Accessory Belt Service Kit - E39 E46 M54 (2002+)
Accessory Belt Service Kit - E39 E46 M54 (2002+)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401685
Part#: 11287512762KT3
Ships on Jan 11, 2027
Sale - Save 25% $ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 172.00 USD
Free Shipping
Add to Wish List
Sale - Save 25%
$ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 172.00 USD
Free Shipping
Add to Wish List
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less
OEM Febi Idler Pulley - Multiple BMWs
OEM Febi Idler Pulley - Multiple BMWs
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382342
Part#: 11287841228
In Stock
$ 48.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 48.99 USD
Free Shipping on orders $49 and up
Add to Wish List
This is an OEM Febi Upper Idler Pulley, also known as the roller pulley or deflection pulley. The upper and lower idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).
Show More Show Less
Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:373752
Part#: 11511436590
In Stock
$ 40.99

This product was last offered at the strikethrough price on
08-13-2026

$ 30.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 30.99 USD
Free Shipping on orders $49 and up
Add to Wish List
A common failing piece due to the plastic design.
S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System
S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul S...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:15710772
Part#: 11281730349-KT
Ships on Jan 11, 2027
Sale - Save 10% $ 509.99

This product was last offered at the strikethrough price on
11-07-2026

$ 458.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 10%
$ 509.99

This product was last offered at the strikethrough price on
11-07-2026

$ 458.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The idea of power pulleys is simple. The less effort the engine puts into running accessories such as the water pump, power steering, pump alternator etc., the more of that power can be used elsewhere - your wheels! The way this is done by reducing the rotation of the pulleys by as much as 10-20%! The end result is more horsepower at your disposal. Turner has done extensive testing (on and off the track), to ensure that the accessory systems still function as intended and without failure. These pulleys offer an excellent compromise of power gains, reliability and performance. All Turner pulleys are constructed of high quality T-6061 aluminum for durability and longevity. They are also finished in a black hard anodizing, which is highly resistant to wear including chemical and heat exposure. They have been designed to carry stock-like aesthetics, but with increased strength properties and lighter weight. Because of the durable aluminum construction, you can also put the worries of a serious plastic failure to rest. These pulleys will last, all the while increasing horsepower too! While you're installing your Power Pulley Kit, it makes sense to overhaul your Accessory Belt System as well, so this kit includes our Accessory Belt Kit as well.
Show More Show Less
OEM Accessory Belt Service Kit - E39, E46 M54 (up to 2002)
OEM Accessory Belt Service Kit - E39, E46 M54 (up to 2002)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401686
Part#: 11281748131KT2
Ships on Jan 11, 2027
Sale - Save 31% $ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 188.63 USD
Free Shipping
Add to Wish List
Sale - Save 31%
$ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 188.63 USD
Free Shipping
Add to Wish List
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less
Hydraulic Alternator Belt Tensioner Conversion Kit
Hydraulic Alternator Belt Tensioner Conversion Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:15710833
Part#: 11287838797-KT
Ships in 1-2 days
Sale - Save 32% $ 163.99

This product was last offered at the strikethrough price on
10-12-2026

$ 111.09 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 32%
$ 163.99

This product was last offered at the strikethrough price on
10-12-2026

$ 111.09 USD
Free Shipping on orders $49 and up
Add to Wish List
The original mechanical design is has been discontinued by BMW. So now Turner offers this complete hydraulic tensioner conversion kit for your BMW alternator/water pump/power steering belt. Changes the old style mechanical design to the updated hydraulic design recommended by BMW. Includes the following parts Hydraulic Tensioner Adjusting Pulley Caps & Dust Guards Securing Hardware
Show More Show Less
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (Pre-09/2002)
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (Pre-09/2002) ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554446
Part#: M54ACCKT2
Ships on Jan 11, 2027
Sale - Save 32% $ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 175.38 USD
Free Shipping
Add to Wish List
Sale - Save 32%
$ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 175.38 USD
Free Shipping
Add to Wish List

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2000-09/2002 E53 BMW X5 M54
2000-09/2002 E39 BMW M54
1999-09/2002 E46 BMW M54

Show More Show Less
Bav Auto Ratcheting Serpentine Belt Wrench Kit
Bav Auto Ratcheting Serpentine Belt Wrench Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bav Auto Tools - Corporate Logo
T#:580390
Part#: B8800077
Ships on Jan 29, 2027
Sale - Save 10% $ 69.99

This product was last offered at the strikethrough price on
11-07-2026

$ 62.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 10%
$ 69.99

This product was last offered at the strikethrough price on
11-07-2026

$ 62.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Used to retract your serpentine belt tensioner. This kit includes 18mm, 5/8 in, 14mm, 13mm, 12mm, sockets and 3/8 in and 1/4 in drive adapters
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z4M S54 3.2L
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 M3, Z3M, Z...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:23482931
Part#: S54KEVACCKT
Ships in 4 Business Days
Sale - Save 26% $ 330.99

This product was last offered at the strikethrough price on
06-16-2026

$ 245.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 26%
$ 330.99

This product was last offered at the strikethrough price on
06-16-2026

$ 245.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
OEM Accessory Belt Kit - E46 M3
OEM Accessory Belt Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554437
Part#: E46M3ACCKT
Ships in 1 Business Day
Sale - Save 25% $ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 262.04 USD
Free Shipping
Add to Wish List
Sale - Save 25%
$ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 262.04 USD
Free Shipping
Add to Wish List

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2001-2006 E46 BMW M3

Show More Show Less
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 M54
Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 M54 ...
For vehicles with production date from 09/2002
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:23482922
Part#: 4PK863ATKT
Ships in 1 Business Day
Sale - Save 30% $ 254.99

This product was last offered at the strikethrough price on
06-10-2026

$ 177.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 30%
$ 254.99

This product was last offered at the strikethrough price on
06-10-2026

$ 177.54 USD
Free Shipping on orders $49 and up
Add to Wish List
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (09/2002+)
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (09/2002+)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554445
Part#: M54ACCKT
Ships on Jan 11, 2027
Sale - Save 24% $ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 191.17 USD
Free Shipping
Add to Wish List
Sale - Save 24%
$ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 191.17 USD
Free Shipping
Add to Wish List

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
09/2002-2006 E53 BMW X5 M54
09/2002-2003 E39 BMW M54
09/2002-2005 E46 BMW M54

Show More Show Less
E46 M3 Power Package - Shark Injector, Power Pulleys, & IAT Relocation Kit
E46 M3 Power Package - Shark Injector, Power Pulleys, & IAT Relocatio...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:393209
Part#: E46S54SIPULLEY
Ships on Jan 11, 2027
Sale - Save 23% $ 1,042.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 801.78 USD
Free Shipping
Add to Wish List
Sale - Save 23%
$ 1,042.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 801.78 USD
Free Shipping
Add to Wish List

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
Febi Mechanical A/C Belt Tensioner Assembly - E39, E46, E53, E60, E83, Z4
Febi Mechanical A/C Belt Tensioner Assembly - E39, E46, E53, E60, E83...
For vehicles with production date from 09/2002
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381700
Part#: 11287512758
Ships on Feb 10, 2027
$ 75.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 75.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Complete tensioner assembly with roller
Febi Hydraulic Alternator Belt Tensioner Roller - E36, E39, E46
Febi Hydraulic Alternator Belt Tensioner Roller - E36, E39, E46 ...
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382335
Part#: 11281748131
Ships on Feb 10, 2027
$ 31.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 31.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Replacement is recommend with every belt service
OEM Febi Water Pump/Alternator Mechanical Belt Tensioner with Pulley - E34 E36 E46 E39 E60 E83 E53 Z3 Z4
OEM Febi Water Pump/Alternator Mechanical Belt Tensioner with Pulley ...
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381684
Part#: 11281427252
Ships in 1 Business Day
$ 82.99

This product was last offered at the strikethrough price on
10-27-2026

$ 72.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 72.99 USD
Free Shipping on orders $49 and up
Add to Wish List

This tensioner is for either the Water Pump or Alternator on cars with the mechanical belt tensioner system. Please check to ensure your car does not have the hydraulic tensioner. This tensioner comes with the pulley assembly.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Only for cars with Mechanical belt tensioner systems.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1991-1995 E34 BMW 525i
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i

Show More Show Less
Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
Febi Mechanical A/C Belt Tensioner Assembly - BMW M52TU M54
For vehicles with production date to 09/2002
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:38419099
Part#: 11281433571
Ships in 1 day
$ 64.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 64.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Keeping all of your belts tight is imperative to making everything in your vehicle functioning. If your A/C belt tensioner pulley is not keeping enough tension on your belt, your entire A/C system won't work as effectively. A usual sign that your tensioner needs replacing is if your belt keeps slipping causing the system to "squeal".
Show More Show Less
Performance Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E46 E39 Z3 M52TU M54
Performance Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E4...
For vehicles with production date up to 09/2002
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:22097548
Part#: 11281706545TKT
Ships in 4 Business Days
Sale - Save 20% $ 268.99

This product was last offered at the strikethrough price on
11-07-2026

$ 214.93 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 20%
$ 268.99

This product was last offered at the strikethrough price on
11-07-2026

$ 214.93 USD
Free Shipping on orders $49 and up
Add to Wish List
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes everything you need to service the belt drive system and keep everything in check, including the updated Hydraulic tensioner to keep your E46 driving like a dream. This kit also includes ECS Tuning's Kevlar reinforced belt for longer life and resistance. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!
Show More Show Less
BMW auxiliary belt
BMW auxiliary belt
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16242197
Part#: 11281437475
Special Order: No Guaranteed ETA
$ 18.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 18.99 USD
Free Shipping on orders $49 and up
Add to Wish List

Select Vehicle

BMW Mini
Clear Vehicle

Purpose

Category

Brand

Price

$
$

Special Offers

Shipping