Turner Motorsport Power Pulley Kit - E46 M3

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T#:340398

Part#: PPK-S54

Ships in 1 Business Day

Sale - Save 30% $ 412.99

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

Starting at $ 289.09 USD

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Sale - Save 30%

$ 412.99

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

Starting at $ 289.09 USD

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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)

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Turner Motorsport Power Pulley Kit - E46 325i, E46 330i

10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!

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

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Sale - Save 20%

$ 377.99

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

Starting at $ 302.39 USD

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

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Turner Motorsport S54 Power Pulley Kit

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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

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$ 418.99

This product was last offered at the strikethrough price on
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$ 293.29 USD

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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.

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Turner Motorsport Power Pulley Kit - E46 323i/328i

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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

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Sale - Save 22%

$ 373.99

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

Starting at $ 292.81 USD

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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

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BWM E46 M3 Turner Motorsport Power Pulley Kit

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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

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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.

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BMW E46 Z3 M54 Turner Motorsport Power Pulley Kit - 325i/330i ...

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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

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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.

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Turner Motorsport Race Alternator Pulley For E46 M3

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T#:388710

Part#: TEN4622RM3

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Sale - Save 15% $ 220.99

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

Starting at $ 187.84 USD

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Sale - Save 15%

$ 220.99

This product was last offered at the strikethrough price on
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Starting at $ 187.84 USD

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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.

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BMW E46 Z3 Turner Motorsport Power Pulley Kit 325i/330i Valeo Alterna...

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T#:301180

Part#: TMS301180

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Sale - Save 25% $ 372.99

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

$ 279.74 USD

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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

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BMW E46 M3 Race Alternator Pulley Turner Motorsport

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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

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$ 201.39 USD

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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

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BMW E46 Turner Motorsport Power Pulley Kit

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T#:395842

Part#: PPK-E46TU-VALEO

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Sale - Save 25% $ 382.99

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11-07-2026

$ 287.24 USD

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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.

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E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley - Black

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T#:363707

Part#: 001977ECS03A

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11-07-2026

$ 94.49 USD

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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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ECS Tuning Performance Kevlar Reinforced Accessory Belt - Water Pump ...

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T#:20979672

Part#: 6PK1460

Ships in 9 Business Days

Sale - Save 15% $ 33.99

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11-11-2026

$ 28.89 USD

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Replaces BMW # 11287837898 ECS Tuning Performance Kevlar reinforced belts give you that extra piece of mind! 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. ECS Tuning Performance Kevlar reinforced belts have been put through a series of multiple tests such. Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley

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T#:367060

Part#: 002778ECS01

Ships on Dec 18, 2026

Sale - Save 15% $ 100.99

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11-07-2026

$ 85.84 USD

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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.

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Hydraulic Alternator Belt Tensioner Assembly

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T#:396757

Part#: 11287838797

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$ 53.99 USD

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Genuine BMW Accessory Belt - Alternator/Water Pump - E46 E9X Z3 Z4 ...

T#:360628

Part#: 11287837898

In Stock

13% off MSRP $ 60.99

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

$ 52.99 USD

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13% off MSRP

$ 60.99

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

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Accessory drive belts keep everything turning off of the crank pulley. Generator, fans, water pumps and AC compressors all rely on this belt to keep everything working properly. If your drive belt is getting old, cracking, glazing, or squeaking, replace it.

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Genuine BMW Idler Pulley - Multiple BMWs

T#:11477

Part#: 11287841228

In Stock

8% off MSRP $ 123.34

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

$ 113.39 USD

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8% off MSRP

$ 123.34

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

$ 113.39 USD

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This is a Genuine BMW 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).

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Mechanical A/C Belt Tensioner Assembly

For vehicles with production date up to 09/2002

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T#:26305100

Part#: 11281433571

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$ 45.74 USD

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OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 ...

We Price Match - Give Us A Call or Chat!

T#:363804

Part#: 11287838797

Ships on Feb 10, 2027

$ 83.99 USD

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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.

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URO Aluminum Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4 ...

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T#:340641

Part#: 11511436590

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$ 45.99 USD

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An upgrade over commonly failing plastic pulley

Genuine BMW Hydraulic Alternator Belt Tensioner Roller

T#:360611

Part#: 11281748131

In Stock

4% off MSRP $ 82.54

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

$ 78.99 USD

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4% off MSRP

$ 82.54

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

$ 78.99 USD

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Belt - Main Drive Belt for Turner Pulley Kit - E46 M3, MZ3 S54, Z4 M ...

T#:16560

Part#: 11281437475

Ships on Jan 11, 2027

$ 29.99

This product was last offered at the strikethrough price on
11-10-2026

$ 22.99 USD

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This is the main drive belt / serpentine belt 6PK x 1538 that is used with the Turner Motorsport Power Pulley Kit (PPK-S54) . This is not for replacing the belt on a car that doesn't have the Turner Pulley Kit. This belt drives all of the engine auxillaries, such as the alternator, waterpump, and power steering pump. If your belt has excessive cracks, dry rot, missing teeth and/or grooves, or are causing noise, it's time for a new one. Alternate Part #11281706545.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs with the Turner Power Pulley Kit:
2001-2006 E46 BMW M3 coupe & convertible
2001-2002 Z3 Z3 M Roadster / Z3 M Coupe (S54 engine)
2006-2008 E85 E86 Z4 M Roadster / Z4 M Coupe

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Water Pump Pulley

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T#:638798

Part#: 11517840403

Ships in 2 Business Days

$ 57.99 USD

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ECS Performance Kevlar Reinforced Accessory Belt - E46 E39 E53 E63 E8...

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T#:639025

Part#: 6PK1538

In Stock

Sale - Save 30% $ 35.99

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

$ 25.19 USD

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ECS Tuning Performance Kevlar-reinforced belts give you that extra peace of mind! 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. ECS Tuning Performance Kevlar-reinforced belts have been put through a series of multiple tests: Tensile strength Elongation Hardness Temperature and oil resistance per standard JASO E 109-94 Flex testing per SAE J2432.

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Accessory Belt Service Kit - E39 E46 M54 (2002+)

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T#:401685

Part#: 11287512762KT3

Ships on Jan 11, 2027

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

$ 172.00 USD

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This product was last offered at the strikethrough price on
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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.

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OEM Febi Idler Pulley - Multiple BMWs

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T#:382342

Part#: 11287841228

In Stock

$ 48.99 USD

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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).

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Mechanical A/C Belt Tensioner Assembly

For vehicles with production date from 09/2002

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T#:32350880

Part#: 11287512758

In Stock

Sale - Save 30% $ 52.99

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

$ 37.09 USD

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Febi Water Pump Pulley - E39, E46, E53, E60, E83, Z3, Z4

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T#:373752

Part#: 11511436590

In Stock

$ 40.99

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

$ 30.99 USD

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A common failing piece due to the plastic design.

Rogue Engineering Power Pulley Set - S54 - E46 M3, Z3/Z4 M

T#:553971

Part#: PP.S54

Ships in 5 Business Days

$ 259.00 USD

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$ 259.00 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.

This part fits the following BMW engines:
S54

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

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S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul S...

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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

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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.

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Mechanical Alternator Belt Tensioner Assembly

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T#:371980

Part#: 11281427252

Ships in 2 Business Days

$ 50.99 USD

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$ 50.99 USD

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Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller.

Genuine BMW Power Steering Pulley - S54

T#:19787

Part#: 32427830838

Ships in 2 Business Days

$ 136.99

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

$ 114.99 USD

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$ 114.99 USD

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

Genuine BMW Hydraulic Alternator Belt Tensioner Assembly

T#:360630

Part#: 11287838797

Ships in 1-2 days

6% off MSRP $ 304.99

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

$ 286.99 USD

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6% off MSRP

$ 304.99

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

$ 286.99 USD

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Genuine BMW Water Pump Pulley - S54 3.2L

T#:19288

Part#: 11517840403

Ships in 1-2 days

$ 208.99 USD

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$ 208.99 USD

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

Fits BMW Engines including:
S54

Genuine BMW Belt tensioner adjuster bearing

T#:38827

Part#: 12311713153

Ships in 3 Business Days

$ 24.99 USD

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$ 24.99 USD

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Genuine BMW Needle Sleeve
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E34,E36,E39,E46,E53 X5 X5,E83 X3,E85 Z4,E86 Z4

Fits BMW Engines including:
M50,M52,M54,M56,S50,S52,S54

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Genuine BMW Accessory Belt - Air Conditioning Compressor

For vehicles with production date up to 09/2002

T#:360604

Part#: 11281437450

Ships in 1-2 days

9% off MSRP $ 46.99

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

$ 42.99 USD

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9% off MSRP

$ 46.99

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

$ 42.99 USD

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Genuine BMW Water Pump Pulley

T#:4472

Part#: 11511436590

In Stock

7% off MSRP $ 73.99

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

$ 68.99 USD

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7% off MSRP

$ 73.99

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

$ 68.99 USD

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SEE T#337981

Hydraulic Alternator Belt Tensioner Conversion Kit

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T#:15710833

Part#: 11287838797-KT

Ships in 2 Business Days

Sale - Save 32% $ 163.99

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

$ 111.09 USD

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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

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Hydraulic Alternator Belt Tensioner Assembly

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T#:55030822

Part#: 11287838797

In Stock

Sale - Save 20% $ 59.99

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

$ 47.99 USD

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Sale - Save 20%

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This product was last offered at the strikethrough price on
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$ 47.99 USD

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Mechanical A/C Belt Tensioner Assembly

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T#:384308

Part#: 11287512758

Ships in 2 Business Days

$ 43.99 USD

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$ 43.99 USD

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Complete tensioner assembly with roller

Genuine BMW Accessory Belt - Air Conditioner - S54

T#:360625

Part#: 11287830946

In Stock

8% 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

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8% 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

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OEM Accessory Belt Service Kit - E39, E46 M54 (up to 2002)

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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

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This product was last offered at the strikethrough price on
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$ 188.63 USD

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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.

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OEM Accessory Belt Service Kit - E46 E39 E53 M54 (Pre-09/2002) ...

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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

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$ 256.99

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

$ 175.38 USD

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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

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Belt Tensioner Conversion Kit

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T#:600039

Part#: 11287838797K

Back Ordered

$ 82.99 USD

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$ 82.99 USD

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Update from a mechanical tensioner to a hydraulic style tensioner

Mechanical A/C Belt Tensioner Assembly

For vehicles with production date up to 09/2002

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T#:361998

Part#: 11281433571

Ships in 2 Business Days

$ 53.99 USD

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$ 53.99 USD

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Complete tensioner assembly with roller

Genuine BMW Accessory Belt - Air Conditioning Compressor

For vehicles with production date from 09/2002

T#:360615

Part#: 11287512762

Ships in 1-2 days

8% off MSRP $ 35.99

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

$ 32.99 USD

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8% off MSRP

$ 35.99

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

$ 32.99 USD

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Genuine BMW Alternator/Water Pump/Power Steering Accessory Belt - E39...

T#:362762

Part#: 11287636379

Ships in 1-2 days

9% off MSRP $ 69.99

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

$ 63.99 USD

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9% off MSRP

$ 69.99

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

$ 63.99 USD

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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.

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Genuine BMW Alternator Pulley

T#:38953

Part#: 12317501754

Ships in 1-2 days

3% off MSRP $ 122.99

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

$ 118.99 USD

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3% off MSRP

$ 122.99

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

$ 118.99 USD

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Genuine BMW Pulley Alternator - D=55Mm
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M54

Genuine BMW Mechanical A/C Belt Tensioner Assembly

For vehicles with production date up to 09/2002

T#:360602

Part#: 11281433571

Ships in 1-2 days

3% off MSRP $ 229.99

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

$ 221.99 USD

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3% off MSRP

$ 229.99

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

$ 221.99 USD

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Power Steering Pulley - E36 E46 E39 Z3

T#:368207

Part#: 32421740858

Ships in 1-2 days

2% off MSRP $ 109.99

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

$ 107.99 USD

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2% off MSRP

$ 109.99

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

$ 107.99 USD

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Replaced your damaged power steering pulley with this OEM part. This the stock stock (135mm) diameter pulley.

This item fits the following BMWs:
1996-1998 E36 BMW 323is 323ic 328i 328is 328ic
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003 E39 BMW 525i 528i 530i
2000-2006 E53 BMW X5 3.0i
1996-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i

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Genuine BMW A/C Belt and Tensioner Kit - E46 E39 E53 M54

For vehicles with production date up to 09/2002

T#:174281

Part#: 11282250246

In Stock

8% off MSRP $ 171.99

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

$ 157.99 USD

Limited Qty Sale

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8% off MSRP

$ 171.99

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

$ 157.99 USD

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Genuine BMW Set, Drive Belt, A/C Compressor - Value Line
This item fits the following BMW Chassis:
E39,E46,E53 X5

Fits BMW Engines including:
M54

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

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BWM E46 M3 Turner Motorsport Power Pulley Kit

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

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