BMW Drive Belts & V-Belts for BMW Z Series E85/6 (2003-2008)

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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.

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Turner Motorsport Power Pulley Upgrade Kit - Z4 M Roadster & Coupe ...
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Turner Motorsport - Corporate Logo
T#:3465
Part#: PPK-MZ4
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Sale - Save 25% $ 354.99

This product was last offered at the strikethrough price on
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$ 266.24 USD
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Sale - Save 25%
$ 354.99

This product was last offered at the strikethrough price on
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$ 266.24 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, With our hardcoat aluminum you will never have to worry about a serious failure of a stock plastic pulley. A 'stealth' approach to aesthetics was our goal and we let the results speak for the pulley design. Installation is straight forward and easy with simple hand tools. Removal of the fan is required for access to the front of the engine. Total install time for a 3-piece pulley set should be around 1.5 hours. A new longer belt is included and we also recommend replacing the separate A/C belt, belt tensioners, and the guide and deflection pulleys at the same time.



Additional Info
Clickhere for example dyno graph

Click here for installation instructions.

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

    This underdrive pulley kit fits the following BMW:
    2006-2008 MZ4 Z4 M Coupe / Z4 M Roadster
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    E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley - Black
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    ECS - Corporate Logo
    T#:363707
    Part#: 001977ECS03A
    In Stock
    Sale - Save 5% $ 104.99

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

    $ 99.74 USD
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    Sale - Save 5%
    $ 104.99

    This product was last offered at the strikethrough price on
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    $ 99.74 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.
    Show More Show Less
    OEM Ruville Hydraulic Belt Tensioner - E36 E46 E39 E60 X3 X5 Z3 Z4 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Ruville - Corporate Logo
    T#:11475
    Part#: 11287838797
    In Stock
    $ 97.99 USD
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    $ 97.99 USD
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    This OEM Ruville hydraulic tensioner assembly is designed to keep the serpentine belt at the correct pressure against the pulleys. Many BMW's can have either a hydraulic or mechanical belt tensioner. Please check to see which tensioner type you need before ordering.

    OEM Schaeffler (INA, LuK, Ruville, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

    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!


    This item fits the following BMWs:
    1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    1991-1995 E34 BMW 525i
    1997-2003 E39 BMW 525i 528i 530i

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    OEM INA Water Pump/Alternator Mechanical Belt Tensioner with Pulley -...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Ina - Corporate Logo
    T#:4466
    Part#: 11281427252
    In Stock
    $ 52.99 USD
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    $ 52.99 USD
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    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.

    OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

    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

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    E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    ECS - Corporate Logo
    T#:367060
    Part#: 002778ECS01
    Ships on Nov 25, 2026
    Sale - Save 10% $ 100.99

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

    $ 90.89 USD
    Free Shipping
    Sale - Save 10%
    $ 100.99

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

    $ 90.89 USD
    Free Shipping
    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.
    Show More Show Less
    OEM INA Belt Tensioner Assembly -- E60 E61 E70 E82 E88 E9X Z4 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Ina - Corporate Logo
    T#:304220
    Part#: 11287530314
    In Stock
    $ 84.99

    This product was last offered at the strikethrough price on
    07-08-2026

    $ 58.99 USD
    Free Shipping
    $ 58.99 USD
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    This is an OEM INA mechanical tensioner for the serpentine belt. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.

    OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

    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!

    Show More Show Less

    OEM INA A/C Belt Tensioner with Pulley - BMW E46 E39 E53 Z3 Z4 ...
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    Ina - Corporate Logo
    T#:2479
    Part#: 11281433571
    In Stock
    $ 62.17 USD
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    $ 62.17 USD
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    This is an OEM INA AC Belt Tensioner with pulley for all 2001-2006 E46 M3, as well as all 1999-2002 non-M E46 3 series models. These belt tensioner units are known to fail, and include the tensioner pulley (as shown).

    OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

    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!

    This Air Conditioning / AC Belt Tensioner with Pulley fits:
    1999-2000 E46 3 Series 323i, 323Ci, 328i, 328Ci
    2001-2002 E46 3 Series 325i, 325Ci, 330i, 330Ci
    2001-2006 E46 M3 coupe & convertible

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    OEM Febi Hydraulic Alternator Belt Tensioner Assembly - E34 E39 E53 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:363804
    Part#: 11287838797
    Ships on Oct 7, 2026
    $ 83.99 USD
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    $ 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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    S54 VAC Harmonic SuperDamper By ATI - Standard Size Crank Pulley ...
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    ATI Performance Products - Corporate Logo
    T#:639878
    Part#: VAC-HPCDK-S54-ST
    In Stock
    $ 1,049.99 USD
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    $ 1,049.99 USD
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    If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3, E9X and E6X, as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Made in the USA.
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    Genuine BMW Hydraulic Alternator Belt Tensioner Assembly
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:360630
    Part#: 11287838797
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping
    OEM Ina Belt Tensioner - E9X E82 E60 E83 E85 E70 with N52 engine ...
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    We Price Match - Give Us A Call or Chat!
    Ina - Corporate Logo
    T#:12545
    Part#: 11287530314K
    In Stock
    $ 67.99 USD
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    $ 67.99 USD
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    This is the mechanical tensioner for the serpentine belts on BMW's with the N52 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system. Kit includes 11287530314 tensioner and 11287530315 aluminum bolt.

    This item fits the following BMWs:
    2008+ E82 BMW 128i
    2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
    2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
    2007-2012 E92 BMW 328i 328xi 328i xDrive - Coupe
    2007-2012 E93 BMW 328i - Convertible
    2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
    2006-2010 E83 BMW X3 3.0i X3 3.0si
    2007-2013 E70 BMW X5 3.0si X5 xDrive30i
    2006-2008 E85 BMW Z4 3.0i Z4 3.0si
    2009+ Z4 BMW Z4 sDrive30i
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    OEM INA Hydraulic Belt Tensioner - E36, E46, E39 6-cyl
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Ina - Corporate Logo
    T#:1603
    Part#: 11281717188
    Ships in 1-2 days
    $ 79.99 USD
    Free Shipping
    $ 79.99 USD
    Free Shipping

    For Alternator / Water Pump Belt

    Hydraulic Belt Tensioner for E36, E46, E39 6-cyl models. This is the oil-filled tensioner that keeps the main drive belt in the proper tension. Over time the piston seals inside allow fluid to leak out. The tensioner becomes frozen or inoperable. Replacement is the best corrective action to take. This can be done during any belt or pulley service or anytime the fan is off the engine.

    OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

    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!


    NOTE: These BMW's may have been equipped with either a mechanical or hydraulic tensioner. Only for cars with Hydraulic Belt Tensioners. Please check before ordering.

    This tensioner pulley fits the following BMWs:
    1991-1995 E34 525i (M50 engine)
    1992-1999 E36 325i, 325is, 328i, 328is, 323is
    1995-1999 E36 M3 (M3 3.0 & M3 3.2 liter)
    1997-2003 E39 525i, 528i, 530i
    1999-2000 E46 323i, 323Ci, 328i, 328Ci
    2001-2005 E46 325i, 325Ci, 325xi, 330i, 330Ci, 330xi
    2001-2006 E46 M3 coupe & convertible
    2000-2006 X5 3.0 liter (E53 chassis)
    2006 525i, 530i(M54 engine)
    1997-2002 Z3 & MZ3 2.8, M Roadster, M Coupe
    2003-2009 Z4 M Coupe and Roadster

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    Crankshaft Pulley With Vibration Damper
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:593668
    Part#: 11237564969
    Ships in 2 Business Days
    $ 234.99 USD
    Free Shipping
    $ 234.99 USD
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    Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in synch with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.
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    Rogue Engineering Power Pulley Set - S54 - E46 M3, Z3/Z4 M
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Rogue Engineering - Corporate Logo
    T#: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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    VAC V2 Harmonic SuperDamper By ATI - BMW N54 3.0L
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    ATI Performance Products - Corporate Logo
    T#:639879
    Part#: VAC-HPCD-N54
    Ships in 9 Business Days
    $ 1,059.99 USD
    Free Shipping
    $ 1,059.99 USD
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    If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3, E9X and E6X, as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Includes lightweight VAC Billet Crankshaft Pulley.
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    Genuine BMW Water Pump Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:4472
    Part#: 11511436590
    In Stock
    Sale - Save 6% $ 73.99

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

    $ 69.65 USD
    Free Shipping
    Sale - Save 6%
    $ 73.99

    This product was last offered at the strikethrough price on
    06-25-2026

    $ 69.65 USD
    Free Shipping
    SEE T#337981

    Genuine BMW Power Steering Pulley - S54
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:19787
    Part#: 32427830838
    In Stock at Vendor
    $ 167.99

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

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

    Genuine BMW Water Pump Pulley - S54 3.2L
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:19288
    Part#: 11517840403
    Ships in 3 Business Days
    $ 208.99 USD
    Free Shipping
    $ 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 Mechanical A/C Belt Tensioner Assembly
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:360602
    Part#: 11281433571
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping
    Genuine BMW Alternator Pulley
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:38953
    Part#: 12317501754
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping


    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


    VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52
    For use only with OBD1 engine management systems.
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    ATI Performance Products - Corporate Logo
    T#:639877
    Part#: VAC-HPCD-M50-TR
    Ships on Jul 28, 2026
    $ 1,139.99 USD
    Free Shipping
    $ 1,139.99 USD
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    If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3 as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Kit includes: Damper Lightweight VAC Billet Crankshaft Pulley Mounting and Installation Hardware Trigger Ring for OBD1 systems Note: Will NOT work with S50B30 & S50B32 Euro Engines, For Street/Track cars with Air Conditioning, the Additional A/C Pulley Option is REQUIRED as the OE A/C pulley is not compatible. The additional mounting and installation hardware is also included. Made in the USA
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    Genuine BMW Belt tensioner pitman arm
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:33617
    Part#: 11281726773
    Ships in 3 Business Days
    2% 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.

    $ 59.99 USD
    Free Shipping
    2% 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.

    $ 59.99 USD
    Free Shipping


    Genuine BMW Pitman Arm
    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 Mechanical A/C Belt Tensioner Assembly
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:360614
    Part#: 11287512758
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping
    Genuine BMW Crankshaft Pulley With Vibration Damper
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:32895
    Part#: 11237564969
    Ships in 3 Business Days
    8% off MSRP $ 789.99

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

    $ 723.99 USD
    Free Shipping
    8% off MSRP
    $ 789.99

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

    $ 723.99 USD
    Free Shipping


    Genuine BMW Vibration Damper -
    This item fits the following BMW Chassis:
    E70 X5,E82,E83 X3,E85,E86,E89 Z4,E90,E92,E93

    Fits BMW Engines including:
    N51,N52,N52N

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    Genuine BMW Hydraulic Alternator Belt Tensioner
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:360606
    Part#: 11281717188
    Ships in 3 Business Days
    6% off MSRP $ 165.99

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

    $ 155.99 USD
    Free Shipping
    6% off MSRP
    $ 165.99

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

    $ 155.99 USD
    Free Shipping
    Genuine BMW Belt tensioner base plate
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Genuine BMW - Corporate Logo
    T#:14460
    Part#: 11281726774
    Ships in 6 Business Days
    $ 67.99 USD
    Free Shipping
    $ 67.99 USD
    Free Shipping


    Genuine BMW Base Plate
    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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    Febi Belt Tensioner Assembly - E60, E61, E70, E82, E88, E90, E91, E92...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:381702
    Part#: 11287530314
    Special Order: No Guaranteed ETA
    $ 112.99 USD
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    $ 112.99 USD
    Free Shipping
    Complete tensioner assembly