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BMW Drive Belts & V-Belts

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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Rogue Engineering - Corporate Logo
T#:553840
Part#: PP.S65.V8.A
Ships in 9 Business Days
$ 295.00 USD
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$ 295.00 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.
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Packaged by Turner - Corporate Logo
T#:22097556
Part#: 6PK1548TKT
Ships on Feb 23, 2027
$ 129.99 USD
Free Shipping on orders $49 and up
Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Accessory Belt, tensioner assembly, and your idler pulley. 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!
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ATI Performance Products - Corporate Logo
T#:7355606
Part#: HPCDK-S50B32-S
Ships in 4 Business Days
$ 1,099.99 USD
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$ 1,099.99 USD
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Bav Auto Serpentine Belt Tensioner Tool Set
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580361
Part#: B8800034
In Stock
Sale - Save 3% $ 30.99

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

$ 30.06 USD
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Sale - Save 3%
$ 30.99

This product was last offered at the strikethrough price on
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$ 30.06 USD
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This specialty wrench is required to retract the serpentine belt tensioner - necessary in order to remove or install your accessory drive belt. Includes tensioner locking-pin which conveniently holds your tensioner in place while changing belt.
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VAC Motorsports - Corporate Logo
T#:928436
Part#: VAC-UPPS-M62-99
Ships in 9 Business Days
$ 329.99 USD
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$ 329.99 USD
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VAC Underdrive Power Pulley Sets for the M60 release 8.5 horsepower @ 5800 RPM and 8 lb/ft of torque @ 4500 RPM (measured @ the wheels.) Always made using only virgin billet 6061 T6 aluminum, an anodized finish, and the tightest tolerances; VAC's pulleys are used on some of the fastest BMWs on the planet. A lightweight design optimizes performance and response while under-driving components just the right amount for proper function at all RPMs.
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Rogue Engineering - Corporate Logo
T#:553959
Part#: PP.S54.RACE
In Stock
$ 599.00 USD
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$ 599.00 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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ATI Performance Products - Corporate Logo
T#:27605443
Part#: ATI-HPCD-B58
Ships on Oct 15, 2026
$ 389.99 USD
Free Shipping on orders $49 and up

Understanding the criticality of harmonic resonance in BMW inline-6 engines, ATI Performance Products has collaborated with VAC Motorsports to craft revolutionary dampers. Designed for BMW 2.5L, 2.8L, 3.0L, and 3.2L straight-6 engines in E36 and E46 M3, E9X, E6X, Z3s, and Z4s, these dampers tackle harmonic vibrations, unlocking heightened horsepower, torque, and longevity. Forget about broken oil pumps and timing chains!

Pairing seamlessly with VAC accessory pulleys, these 7" diameter dampers boast OEM-style timing alignment tabs, ensuring a direct fit over OEM balancers. Notably, all ATI Super Dampers exceed SFI 18.1 Safety Certification for competitive use, making them a must-have for BMW enthusiasts. Benefits extend to eliminating vibration issues with lightweight clutch and flywheel assemblies, reducing wear on bearings, engine accessories, and oil pumps, and harmonizing with underdrive pulleys.

Plus, each package includes the lightweight VAC Billet Crankshaft Pulley, proudly made in the USA for uncompromised quality assurance.

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VAC Motorsports - Corporate Logo
T#:29533361
Part#: VACUPPSS543ULG
Ships on Oct 15, 2026
$ 349.99 USD
Free Shipping on orders $49 and up
These pulleys are precision made from domestic USA 6061-T6 Billet Aluminum. They have undergone thousands of hours in testing, race use, and street miles accumulated to show these pulleys work great and give you the edge. Each is precision zero-balanced and inspected for zero-runout for the best performance and to have no adverse effects on reliability, noise, or vibration. This 3 Pulley Race Set is a very popular choice: just like the 2 pulley set, a precision power steering pulley and water pump pulley are included, but VAC includes an additional underdriven alternator pulley for maximum power output on the track. We have seen 11hp and 9 ftlbs to the wheels on otherwise stock racing cars with this kit.
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ATI Performance Products - Corporate Logo
T#:639877
Part#: VAC-HPCD-M50-TR
Ships on Oct 15, 2026
$ 1,139.99 USD
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$ 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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VAC Motorsports - Corporate Logo
T#:598754
Part#: VAC-UPPS-S14-3-G
Ships on Oct 15, 2026
$ 334.99 USD
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$ 334.99 USD
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Made using only virgin billet aluminum, a hard anodized finish, and the tightest tolerances, VAC's pulley sets are used on some of the fastest S14s on the planet. This lightweight design optimizes performance and response while under-driving components just the right amount for proper function. Perfect for track cars, they can also be used on a street car without any problems. Features: Reduces pump cavitation at higher rpm's Saves weight when every bit counts Includes new, correct length, labeled Contitech belts for WP, ALT, P/S
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M7 Speed - Corporate Logo
T#:12774050
Part#: 53-3M7101-0
In Stock
Sale - Save 12% $ 159.99

This product was last offered at the strikethrough price on
08-31-2026

$ 140.99 USD
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Sale - Save 12%
$ 159.99

This product was last offered at the strikethrough price on
08-31-2026

$ 140.99 USD
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ECS - Corporate Logo
T#:23416512
Part#: 6PK1697
In Stock
$ 46.99 USD
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Replaces BMW # 11288519128, 11288512067, and 11288507415 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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M7 Speed - Corporate Logo
T#:1150752
Part#: 53-3M7700-1
In Stock
Sale - Save 5% $ 368.99

This product was last offered at the strikethrough price on
08-31-2026

$ 350.12 USD
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Sale - Save 5%
$ 368.99

This product was last offered at the strikethrough price on
08-31-2026

$ 350.12 USD
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M7 Speed - Corporate Logo
T#:584439
Part#: 53-3M7101-4
Back Ordered
Sale - Save 5% $ 159.99

This product was last offered at the strikethrough price on
08-31-2026

$ 151.77 USD
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Sale - Save 5%
$ 159.99

This product was last offered at the strikethrough price on
08-31-2026

$ 151.77 USD
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M7 Speed 4% Oversize Crankshaft Pulley for MINI Cooper

Unlocking Performance

The M7 Speed 4% oversize crankshaft pulley is your ticket to unlocking the hidden potential of your MINI Cooper. This performance-enhancing pulley is designed to add power, acceleration, and overall performance to your beloved MINI. Here's how it does the trick:

Performance Boost:

  • Safely speeds up your supercharger, delivering a significant "low end" boost and torque.
  • The result? Your MINI Cooper takes off with newfound energy and responsiveness.

Lightweight Advantage:

  • Weighing just 13 ounces, this pulley is a remarkable 88.5% lighter than the factory version.
  • Reduced crankshaft rotational mass equals more horsepower, torque, and improved throttle response.

Advanced Design

The M7 Speed 4% Crank Pulley isn't just about performance; it's also a work of art. Crafted with advanced computer modeling and precision CNC machining, it's a blend of form and function:

Materials:

  • Made in the USA from billet 6061-T6 aerospace-grade aluminum alloy.
  • Features a deep black anodized coating and laser etching for a sleek look.

Precision Machining:

  • Micro V-Belt grooves meet SAE J1459 specifications to minimize belt slippage, especially at maximum boost.

Optimal Fit:

Use it in conjunction with the M7 Speed 16% Supercharger Technology Pulley for peak performance in MINI tuning.

Reliable Performance

From the factory, MINI lacks a positive drive key on the crankshaft snout to drive the lower pulley. Most aftermarket pulleys are slip-fit and rely on the bolt to prevent slippage. The M7 Speed crank pulley is engineered differently:

Interference Fit:

The pulley is interference-fit onto the crankshaft, ensuring zero slippage even at high RPMs.

Features at a Glance:

  • Super Lightweight: Only 13 ounces (0.3 kg)
  • Sheds 6.2 lbs (2.8 kg) compared to stock
  • Achieves perfect balance through a symmetric design and precision machining
  • Includes a high-quality ARP Racing bolt and precision ground flat washer
  • Installation is a breeze

Unleash Your MINI's Potential

Proudly made in the USA, the M7 Speed 4% Oversize Crankshaft Pulley is the upgrade your MINI Cooper deserves. Unleash its hidden power and enjoy a new level of performance, reliability, and overall driving pleasure. Get ready to experience the difference.

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Performance Kevlar Reinforced Belt
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:26971837
Part#: 6PK1175
In Stock
Sale - Save 17% $ 35.99

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

$ 29.99 USD
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Sale - Save 17%
$ 35.99

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

$ 29.99 USD
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Bav Auto Stretch Belt Installer Tool
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580415
Part#: B8800108
In Stock
Sale - Save 55% $ 19.99

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

$ 8.99 USD
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Sale - Save 55%
$ 19.99

This product was last offered at the strikethrough price on
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$ 8.99 USD
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This universal stretch belt installer can aid in drive belt installation. Recommended in conjunction with ​B8800123

Bav Auto Stretch Belt Installer Tool
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580430
Part#: B8800123
In Stock
Sale - Save 10% $ 16.99

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

$ 15.29 USD
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Sale - Save 10%
$ 16.99

This product was last offered at the strikethrough price on
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$ 15.29 USD
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Bav Auto's stretch belt installer tool is helpful in installing some BMW accessory belts.
MINI R50 R52 Performance Kevlar Reinforced Belt
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:10031003
Part#: 6PK1033ECS
In Stock
Sale - Save 44% $ 25.99

This product was last offered at the strikethrough price on
05-15-2026

$ 14.44 USD
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Sale - Save 44%
$ 25.99

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$ 14.44 USD
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MINI R50 R52 Performance Kevlar Reinforced Belt

Offers enhanced durability and reliability for your Mini's engine system. Engineered with Kevlar reinforcement, this belt ensures optimal performance even in demanding driving conditions.

  • Improved durability compared to standard belts
  • Kevlar reinforcement enhances strength and reliability
  • Designed for optimal performance in Mini R50 and R52 models
  • Helps maintain engine efficiency and reliability
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ECS - Corporate Logo
T#:22163420
Part#: 06B260849A
In Stock
$ 25.99

This product was last offered at the strikethrough price on
07-23-2026

$ 19.99 USD
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$ 25.99

This product was last offered at the strikethrough price on
07-23-2026

$ 19.99 USD
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Replaces BMW # 64551727378 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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Hex Bolt - N52, N54
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:19792190
Part#: 11211439395
In Stock
Sale - Save 20% $ 18.99

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

$ 15.19 USD
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Sale - Save 20%
$ 18.99

This product was last offered at the strikethrough price on
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$ 15.19 USD
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Replacement center bolt for the engine crank pulley.

ECS - Corporate Logo
T#:5858452
Part#: 3PK968
In Stock
Sale - Save 78% $ 27.99

This product was last offered at the strikethrough price on
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$ 6.02 USD
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Sale - Save 78%
$ 27.99

This product was last offered at the strikethrough price on
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$ 6.02 USD
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Replaces BMW # 11288638616 & 11285A04DA2 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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AFE - Corporate Logo
T#:372901
Part#: 79-10001
Ships in 2 Business Days
20% off MSRP $ 585.00

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

$ 468.00 USD
Free Shipping on orders $49 and up
20% off MSRP
$ 585.00

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

$ 468.00 USD
Free Shipping on orders $49 and up
aFe Power's new power pulley brings performance engineering to your BMW M3. This power pulley is a complete bolt-on kit, including the pulley, bolts, and belts. aFe's power pulleys are CNC machined out of billet aluminum and black anodized for that aggressive look under the M3's hood. This power pulley does not modify factory harmonics or dampening. In recent Dyno testing this power pulley produced 10 HP and 7lbs. x ft. torque. aFe's power pulley fits up to production date May 2008. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice.
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AFE - Corporate Logo
T#:382305
Part#: 79-10003
Ships in 2 Business Days
20% off MSRP $ 621.99

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

$ 497.00 USD
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20% off MSRP
$ 621.99

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

$ 497.00 USD
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aFe Power's new power pulley brings performance engineering to your BMW M5. This power pulley is a complete bolt-on kit, including the pulley, bolts, and belts. aFe’s power pulleys are CNC machined out of billet aluminum and black anodized for that aggressive look under the M5’s hood. This power pulley does not modify factory harmonics or dampening. In recent Dyno testing this power pulley produced 5 HP and 6lbs. x ft. torque. When it comes to engineering for power, performance, protection and value, aFe Power is the only choice. 

This part fits the following BMWs:
2006 - 2010 E60 M5 

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Alta Performance - Corporate Logo
T#:27938418
Part#: AMPENG195BK
In Stock at Vendor
$ 99.99 USD
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MINI R52 R53 Adjustable Tensioner Stop - Black

Upgrade your Mini's engine with the MINI R52 R53 Adjustable Tensioner Stop - Black. Engineered for precision and durability, this tensioner stop allows for easy adjustment of belt tension, ensuring optimal performance. Say goodbye to belt slippage and enjoy improved engine reliability with this high-quality accessory.

  • Allows for easy adjustment of belt tension
  • Prevents belt slippage for improved engine reliability
  • Engineered for precision and durability
  • Enhances performance of your Mini's engine
  • Sleek black design adds a stylish touch
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Replacement Belt For Underdrive Pulley Kit D560-0003
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:586063
Part#: D561-0003
Ships in 6 Business Days
Sale - Save 10% $ 63.99

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

$ 57.56 USD
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$ 63.99

This product was last offered at the strikethrough price on
09-29-2026

$ 57.56 USD
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M7 Speed - Corporate Logo
T#:50276469
Part#: 53-3M7702-10
Ships in 3 Business Days
Sale - Save 5% $ 440.99

This product was last offered at the strikethrough price on
08-31-2026

$ 418.10 USD
Sale - Save 5%
$ 440.99

This product was last offered at the strikethrough price on
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$ 418.10 USD

Genuine BMW Motorsport - Corporate Logo
T#:396369
Part#: 12311311449KT
Ships on Oct 30, 2026
$ 1,696.99 USD
Free Shipping on orders $49 and up

Group A racecars were the top of their class in both touring car and rally racing. Heavily modified and extremely fast these cars set out to demonstrate the best of what a manufacturer could do on the racetrack. It was the predecessor to the current DTM class racing and set a standard for many other divisions of motorsport to follow.  

One of the weaker points of the S14 engine, when speaking from a racing standpoint is the belt drive system. While fine for a street going car, a V-belt is not suitable for high RPM applications. On the track, most of your time will be spent in the higher rev range which puts extreme amounts of stress on the factory setup. BMW realised this and came up with a solution that involved doing away with the V belt system and using a 6 rib serpentine style instead.

Extremely resistant to slippage and failure this design holds up much better the abuse of track duty and won't leave you stranded and waiting for tow back to the pit. Additionally, this kit does not accommodate and a/c compressor and the alternator and waterpump are underdriven by way of slightly larger pulleys. Combined, this puts less of a load on the crankshaft which leads to more efficient power delivery to the ground. If you track you E30 M3, this is an essential upgrade and until now was extremely difficult to source. Do not skip this pivotal step in your engine build or overhaul and get a leg up on the competition the Group A way.
Please note this kit is special order and in non-returnable

Features:​

  • Kit replaces all engine pulleys and crank damper
  • Includes 6 rib serpentine belt
  • Underdriven waterpump and alternator pulleys
  • Recommended for off road and racing use only 

This kit fits the following BMWs:
1986-1992 BMW M3 All 
 

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ATI - Corporate Logo
T#:43142744
Part#: 918351
Back Ordered
$ 418.99 USD
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This ATI Super Damper is a direct replacement for the OEM Harmonic Balancer, designed to further reduce harmful engine harmonics that could lead to damage to sensitive engine components. The 21% underdrive function of this super damper is designed to greatly increase usable horsepower for racing applications by driving engine accessories slower, reducing overall parasitic power loss.
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ATI - Corporate Logo
T#:43142743
Part#: 918352
Back Ordered
$ 451.99 USD
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This ATI Super Damper is a direct replacement for the OEM Harmonic Balancer, designed to further reduce harmful engine harmonics that could lead to damage to sensitive engine components. The 10% underdrive function of this super damper is designed to increase usable horsepower by reducing parasitic power loss without greatly affecting engine accessories.
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