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BMW Drive Belts & V-Belts for BMW E92 M3 S65 4.0L

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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OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...

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T#:31059479

Part#: 11287838194KT

Ships in 6 Business Days

$ 30.99 USD

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$ 30.99 USD

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If your water pump or alternator belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $150 or more compared to the Genuine BMW tensioner.

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OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...

For clockwise power steering pump

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T#:31092500

Part#: 11287838196KT

In Stock

$ 25.99

This product was last offered at the strikethrough price on
05-06-2026

$ 24.99 USD

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$ 24.99 USD

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If your air conditioning belt tensioner has failed because of the pulley or bearing, this replacement pulley is all you need to get your BMW back on the road! BMW and other brands usually sell the tensioner with the metal arm included, which increases the cost, even though the arm often doesn't need replacement. This OEM replacement is a much more affordable option, saving you $180 or more compared to the Genuine BMW tensioner.

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Active Autowerke Power Pulley Kit - E9x M3

For vehicles with production date 2007-5/2008

T#:397285

Part#: 13-001

Ships in 3 Business Days

5% off MSRP $ 399.00

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

$ 379.99 USD

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5% off MSRP

$ 399.00

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

$ 379.99 USD

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Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.

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OEM INA Idler Pulley - Multiple BMWs

For vehicles with a production date up to 04/2008

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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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BMW Drive Belts & V-Belts for BMW E92 M3 S65 4.0L

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OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...

OEM INA Accesory Belt Tensioner Pulley - Air Conditioner - BMW E9X M3...

Active Autowerke Power Pulley Kit - E9x M3

OEM INA Idler Pulley - Multiple BMWs

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