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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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Genuine BMW Crankshaft Pulley (Vibration Damper) - F48 F39

T#:522791

Part#: 11238602800

In Stock

Sale - Save 10% $ 579.98

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

$ 521.98 USD

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$ 579.98

This product was last offered at the strikethrough price on
06-09-2026

$ 521.98 USD

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Upgrade your BMW engine with the Genuine BMW Crankshaft Pulley (Part Number: 11238602800). This OEM crankshaft pulley, designed specifically for BMW models, ensures optimal engine performance and reliability.

Key Features:

Genuine BMW part for perfect compatibility and functionality
Precision engineering for a perfect fit and long-lasting performance
Designed to meet BMW's high standards for quality and durability
Ensures proper belt tension and smooth operation of engine accessories
Compatible with specific BMW models (verify compatibility before purchase)

Replace your worn or faulty crankshaft pulley with this Genuine BMW part to maintain your vehicle's performance and drive with confidence.

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Bav Auto Ratcheting Serpentine Belt Wrench Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:580390

Part#: B8800077

Ships on Jan 11, 2027

Sale - Save 7% $ 67.99

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

$ 62.99 USD

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$ 67.99

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

$ 62.99 USD

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Used to retract your serpentine belt tensioner. This kit includes 18mm, 5/8 in, 14mm, 13mm, 12mm, sockets and 3/8 in and 1/4 in drive adapters

Genuine BMW Power Steering Belt - E30 318i M10 E30 M3

T#:58511

Part#: 32421316785

Ships in 3 Business Days

Sale - Save 15% $ 41.99

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

$ 35.50 USD

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$ 41.99

This product was last offered at the strikethrough price on
05-02-2026

$ 35.50 USD

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Genuine BMW Fan Belt - Avx 10X813
This item fits the following BMW Chassis:
E30 M3,E30

Dinan Underdrive Crankshaft Pulley Kit - E60 M5, E63/64 M6 S85 5.0L ...

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

T#:21078436

Part#: D560-0001

Ships in 5 Business Days

Sale - Save 10% $ 449.99

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

$ 404.96 USD

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$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD

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Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, a lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. Features: All accessories are underdriven by 13% to decrease drag on the engine. Lightweight billet aluminum crankshaft pulley, black anodized and engraved. Includes mounting hardware and shorter belts.

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BMW E9X M3 Replacement Belt For Underdrive Pulley Kit - (D560-0004) ...

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Call In, Chat, Or Email, For Best Price! Limited Time Only!

T#:586064

Part#: D561-0002

Back Ordered

Sale - Save 10% $ 126.99

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

$ 114.26 USD

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$ 126.99

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

$ 114.26 USD

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

Designed for Precision: Tailored to fit the BMW E9X M3 Underdrive Pulley Kit perfectly.
High-Quality Construction: Built to withstand the demands of high-performance driving.
Optimal Performance: Ensures smooth operation and reliable power delivery.
Easy Replacement: Simple to install, making maintenance straightforward.

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E9X M3 6/2008+ Dinan Underdrive Pulley Kit

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T#:389532

Part#: D560-0004

Ships in 5 Business Days

Sale - Save 10% $ 449.99

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

$ 404.96 USD

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Sale - Save 10%

$ 449.99

This product was last offered at the strikethrough price on
09-28-2026

$ 404.96 USD

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Dinan Replacement Underdrive Pulley Belt For D560-0001 - Power Steeri...

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T#:21078443

Part#: D561-0005

Ships in 5 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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Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt attaches to the power steering and air conditioner.

Replacement Belt For Underdrive Pulley Kit D560-0003 & D560-0004 ...

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T#:586065

Part#: D561-0007

Ships in 5 Business Days

Sale - Save 10% $ 95.99

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

$ 86.30 USD

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$ 95.99

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

$ 86.30 USD

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Dinan Replacement Underdrive Pulley Belt For D560-0001 - Alternator/W...

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T#:21078444

Part#: D561-0006

Ships in 5 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
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$ 57.56 USD

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Replacement Belt for Underdrive Pulley Kit (D560-0001). This belt drives the alternator and water pump.

Bav Auto Serpentine Belt Tensioner Tool Set

10X Entries Into Our F80 M3 Sweepstakes

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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$ 30.99

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

$ 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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M7 Lightweight Crank Pulley - 4% Overdrive - R52 / R53

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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$ 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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MINI R52 R53 M7 Gen 1 Power Up Kit - Supercharger Overdrive Pulley Ki...

T#:1150752

Part#: 53-3M7700-1

Ships in 1 Business Day

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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$ 368.99

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

$ 350.12 USD

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Bav Auto Stretch Belt Installer Tool

10X Entries Into Our F80 M3 Sweepstakes

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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$ 16.99

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

$ 15.29 USD

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Bav Auto's stretch belt installer tool is helpful in installing some BMW accessory belts.

Hex Bolt - MINI

10X Entries Into Our F80 M3 Sweepstakes

T#:16940487

Part#: 11217616164

In Stock

Sale - Save 23% $ 12.99

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

$ 9.99 USD

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Sale - Save 23%

$ 12.99

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

$ 9.99 USD

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Used to attach the crank pulley / vibration dampener

Bav Auto Stretch Belt Installer Tool

10X Entries Into Our F80 M3 Sweepstakes

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
05-03-2026

$ 8.99 USD

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This universal stretch belt installer can aid in drive belt installation. Recommended in conjunction with B8800123

Hex Bolt - N52, N54

10X Entries Into Our F80 M3 Sweepstakes

T#:19792190

Part#: 11211439395

Ships on Nov 16, 2026

Sale - Save 11% $ 18.99

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

$ 16.99 USD

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Sale - Save 11%

$ 18.99

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

$ 16.99 USD

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Replacement center bolt for the engine crank pulley.

Replacement Belt For Underdrive Pulley Kit D560-0003

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

T#:586063

Part#: D561-0003

Ships in 5 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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Sale - Save 10%

$ 63.99

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

$ 57.56 USD

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High Performance Engine Power Kit For Gen 1 MINI S

T#:50276469

Part#: 53-3M7702-10

Ships in 2 Business Days

Sale - Save 5% $ 440.99

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

$ 418.10 USD

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$ 440.99

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

$ 418.10 USD

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