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

2X Entries Into Our F80 M3 Sweepstakes

T#:591711

Part#: 11511436590

In Stock

$ 50.99 USD

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$ 50.99 USD

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A common failing piece due to the plastic design.

MMX Crank Hub Capture Plate - Black - S55

T#:4552069

Part#: MMR20-1002

Ships in 10 Business Days

$ 187.99 USD

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$ 187.99 USD

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Anyone with a modified S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. This capture plate can be secured to the OEM crank bolt or to MMR's redesigned one-piece crank hub. *Installation recommended by a professional shop or technician.

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Rein Water Pump Pulley - E34, E36, E39, Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:591716

Part#: 11511730554

In Stock

$ 49.99 USD

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$ 49.99 USD

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Located behind the fan blade, fan clutch bolts to this pulley

Rein Power Steering Pulley E88 135i, E90 335i/335xi, E84 X1 35i xDriv...

2X Entries Into Our F80 M3 Sweepstakes

T#:34147755

Part#: 32427582947

In Stock at Vendor

$ 71.99 USD

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$ 71.99 USD

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Power Steering Pulley is a vital component in your BMW’s power steering system, designed to maintain smooth and responsive steering performance. Available from Turner Motorsport, this high-quality pulley ensures the efficient operation of your power steering pump by providing optimal belt tension and reducing wear. Built to OEM specifications, the Power Steering Pulley is a direct-fit replacement, making installation easy and hassle-free for BMW owners and mechanics alike.

Made from durable materials, this pulley is designed to withstand the rigors of daily driving, offering long-lasting performance and reliability. It’s the perfect solution for those looking to restore or maintain the functionality of their BMW’s power steering system.

Key Benefits:

Ensures smooth and efficient power steering operation
Direct OEM fit for easy installation
Reduces wear on the power steering belt and pump
Made from durable materials for long-lasting performance
Available from Turner Motorsport, a trusted source for BMW parts

This Power Steering Pulley is an essential part for maintaining the functionality and reliability of your BMW’s power steering system.

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MMR One-Piece Crank Hub - S55

T#:4565823

Part#: MMR20-1001

Ships in 1 Business Day

$ 730.99 USD

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$ 730.99 USD

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Anyone with a modified S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMX has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Can also be paired with MMR's Performance Capture Plate to ensure against loosening of the crank bolt. *Installation recommended by a professional shop or technician.

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MMR Crank Hub Kit - N55/S55

T#:4565824

Part#: MMR20-1003FK

Ships in 2 Business Days

$ 849.99 USD

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$ 849.99 USD

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Anyone with a modified N55/S55 knows the risks involved with the OEM Crank Hub. When the engine simply can't handle the stresses its put under or the design is such that it simply does not support extreme conditions, issues can arise. Under certain conditions, the N55/S55 crank hub likes to spin, without warning and even when the engine is in perfect health. MMR has produced a EN36 machined billet one-piece crank hub heat treated with a 0.75mm case hardening which makes it extremely durable. Due to the one-piece design, it ensures that the friction plates cannot slip. This offers a huge jump in reliability when paired with a new properly torques crank bolt. Installation is requires no drilling or modification to the OEM crankshaft ensuring a perfect fit! Included in this kit is MMR's T-6061 machined billet aluminum capture plate anodized in their trademark finish. The MMR Performance capture plate secures the head of the OE crank bolt and prevents it from turning or being able to loosen. *Installation recommended by a professional shop or technician.

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E9X M3 6/2008+ Dinan Underdrive Pulley Kit

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

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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Rein Aluminum Power Steering Pump Pulley - E36, E46 , E39, E83, E53, ...

2X Entries Into Our F80 M3 Sweepstakes

T#:53750207

Part#: PKP0124

In Stock

$ 41.99 USD

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$ 41.99 USD

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Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein

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

Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Call In, Chat, Or Email, For Best Price! Limited Time Only!

T#:586064

Part#: D561-0002

Ships in 5 Business Days

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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Sale - Save 10%

$ 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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Crank Pulley With Dampener

2X Entries Into Our F80 M3 Sweepstakes

T#:38587673

Part#: 11237829906

Back Ordered

$ 89.99 USD

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$ 89.99 USD

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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

Add to Wish List

Qty

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

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

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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Qty

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

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

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

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

Add to Wish List

Qty

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

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

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

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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Sale - Save 10%

$ 95.99

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

$ 86.30 USD

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Vibration Damper

2X Entries Into Our F80 M3 Sweepstakes

T#:38161721

Part#: 11237513862

Ships in 3 Business Days

$ 92.99 USD

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$ 92.99 USD

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OEM Rein Upgraded Aluminum Power Steering Pump Pulley - BMW N54 3.0L ...

2X Entries Into Our F80 M3 Sweepstakes

T#:45997481

Part#: PKP0246

Ships in 3 Business Days

$ 64.99 USD

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$ 64.99 USD

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Plastic power steering pump pulleys can wear over time or even crack. If you are replacing your pump or if your pulley has worn or failed, upgrade to this aluminum pulley from OEM Rein.

Torx Screw - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:400830

Part#: 11287530315

In Stock

$ 7.92 USD

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$ 7.92 USD

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Used to mount the drive belt tensioner to the engine block.

OEM Rein PRO Series Water Pump & Serpentine Belt Kit - BMW E60 535 N5...

2X Entries Into Our F80 M3 Sweepstakes

T#:38161726

Part#: RSW0021

Ships in 3 Business Days

$ 711.23 USD

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$ 711.23 USD

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Includes a new electric water pump, serpentine belt, belt tensioners, and idler pulleys

Vibration Damper

2X Entries Into Our F80 M3 Sweepstakes

T#:38195378

Part#: 11231438995

Ships in 3 Business Days

$ 112.99 USD

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$ 112.99 USD

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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

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

Add to Wish List

Qty

Sale - Save 10%

$ 63.99

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

$ 57.56 USD

Add to Wish List

Crank Pulley With Dampener

2X Entries Into Our F80 M3 Sweepstakes

T#:599037

Part#: 11237638551

Back Ordered

$ 87.99 USD

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$ 87.99 USD

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Rein Aluminum Power Steering Pump Pulley - E60, E83 - M54, N52 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:53750204

Part#: PKP0123

Ships in 3 Business Days

$ 61.99 USD

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Qty

$ 61.99 USD

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Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein

Rein Aluminum Power Steering Pump Pulley - F06, F10, F12, F13 - S63 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:53750169

Part#: PKP0121

Ships in 3 Business Days

$ 63.99 USD

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Qty

$ 63.99 USD

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Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein

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