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BMW Drive Belts & V-Belts for BMW E60 M5 S85 5.0L

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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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URO Hydraulic Belt Tensioner - BMW E9X M3, E60 M5, E63 M6

2X Entries Into Our F80 M3 Sweepstakes

T#:48573724

Part#: 11287835417

Ships in 1 Business Day

$ 120.11 USD

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$ 120.11 USD

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Hydraulic Belt Tensioner for E9x M3 with S65 engine and E60 M5, E63 M6 with S85 engine. This oil-filled tensioner keeps the main drive belt in the proper tension. Over time, the seals wear, allowing fluid to leak out and the tensioner then 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.

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Bav Auto Ratcheting Serpentine Belt Wrench Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:580390

Part#: B8800077

In Stock

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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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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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

URO A/C Belt Tensioner Pulley W/ Lever - E60, E63, E64

2X Entries Into Our F80 M3 Sweepstakes

T#:591647

Part#: 11287839135

Ships in 1 Business Day

$ 164.99 USD

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$ 164.99 USD

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Includes belt tensioner pulley & lever

OEM INA Idler Pulley - Multiple BMWs

We Price Match - Give Us A Call or Chat!

T#:1626

Part#: 11287841228

In Stock

$ 18.99 USD

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$ 18.99 USD

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This is an OEM INA Upper Idler Pulley, also known as the roller pulley or deflection pulley. The upper and lower idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

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Idler Pulley

10X Entries Into Our F80 M3 Sweepstakes

T#:30629656

Part#: 11287841228

In Stock

Sale - Save 22% $ 19.99

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

$ 15.50 USD

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Sale - Save 22%

$ 19.99

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

$ 15.50 USD

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Meyle Idler Pulley

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:369422

Part#: 11287841228

In Stock

Sale - Save 60% $ 32.63

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

$ 13.00 USD

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Sale - Save 60%

$ 32.63

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

$ 13.00 USD

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Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems

Drive Belt Pulley Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:639224

Part#: 11281727159

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$ 3.99 USD

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$ 3.99 USD

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Replace that missing protective cap and protect your belt tensioner bearing from debris.

Bremmen Water Pump/Alternator Drive Belt - BMW S85

10X Entries Into Our F80 M3 Sweepstakes

T#:21078401

Part#: S6PK1425

In Stock

Sale - Save 71% $ 16.99

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

$ 5.00 USD

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Qty

Sale - Save 71%

$ 16.99

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

$ 5.00 USD

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

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V-Ribbed Serpentine Belt

5X Entries Into Our F80 M3 Sweepstakes

T#:55461371

Part#: 11287838226

Ships on Nov 2, 2026

$ 13.99 USD

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$ 13.99 USD

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This Meyle replacement V-ribbed belt is built from high-temperature EPDM rubber to resist cracking and elongation.

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