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BMW Drive Belts & V-Belts for BMW E90 M3 S65 4.0L

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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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Genuine BMW Idler Pulley - Multiple BMWs

For vehicles with a production date up to 04/2008

T#:11477

Part#: 11287841228

In Stock

8% off MSRP $ 123.34

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

$ 113.39 USD

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8% off MSRP

$ 123.34

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

$ 113.39 USD

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This is a Genuine BMW 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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Genuine BMW Accessory Belt - Alternator/Water Pump - E46 E9X Z3 Z4 ...

T#:360628

Part#: 11287837898

In Stock

13% 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.

$ 52.99 USD

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13% 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.

$ 52.99 USD

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Accessory drive belts keep everything turning off of the crank pulley. Generator, fans, water pumps and AC compressors all 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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Genuine BMW Accessory Belt - Air Conditioning - E90 E92 M3

For vehicles with production date from 04/2008

T#:361079

Part#: 11287841529

Ships in 1-2 days

14% off MSRP $ 63.99

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

$ 55.00 USD

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14% off MSRP

$ 63.99

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

$ 55.00 USD

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This belt drives the air conditioning compressor for the AC system. 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. This belt is 6PK x 1100 and is double-sided. Please your original check belt size and style before ordering as BMW changed the belt routing and tensioner design during early production. This item fits the following BMWs: 4/2008+ E90 BMW M3 - Sedan 4/2008+ E92 BMW M3 - Coupe 4/2008+ E93 BMW M3 - Convertible

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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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Qty

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

Idler Pulley

For vehicles with a production date up to 04/2008

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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aFe POWER Crank Power Pulley Kit - E9X M3 S65 4.0L (up to 05/2008) ...

For vehicles with production date up to 05/2008 & a closckwise rotating Power Steering ...

T#:372901

Part#: 79-10001

Ships in 4 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

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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

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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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Accessory Belt Service Kit w/ Kevlar Reinforced Belt - E9X M3 S65 ...

For vehicles with production date from 04/2008

10X Entries Into Our F80 M3 Sweepstakes

T#:23416553

Part#: 11287841529KT

Ships on Nov 12, 2026

$ 1,038.99 USD

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$ 1,038.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes ECS Kevlar Reinforced Drive Belts, tensioner assemblies, and new tensioner pulleys. 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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Genuine BMW Air Conditioning Drive Belt - S65 4.0L

For vehicles with production date up to 04/2008

T#:54637809

Part#: 11285B98AA1

Ships in 4 Business Days

12% off MSRP $ 64.99

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

$ 56.99 USD

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Qty

12% off MSRP

$ 64.99

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

$ 56.99 USD

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This belt delivers the exact friction coefficient and tensile strength required by BMW's engineering team, preventing slippage and ensuring your AC compressor gets smooth, uninterrupted power transfer.

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