BMW E90 M3 S65 4.0L

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

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T#:31059479

Part#: 11287838194KT

In Stock

$ 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

Ships in 1-2 days

$ 25.99 USD

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$ 25.99 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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ACM A/C Pressure Sensor

T#:370959

Part#: 64539181464

In Stock

10% off MSRP $ 56.57

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

$ 50.99 USD

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10% off MSRP

$ 56.57

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

$ 50.99 USD

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Part of the A/C system

ACM Blower Motor Resistor - E70, E71, E82, E88, E90, E91, E92, E93, Z...

T#:377148

Part#: 64119265892

Ships in 4 Business Days

$ 121.99

This product was last offered at the strikethrough price on
05-07-2026

$ 118.99 USD

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$ 118.99 USD

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Used to control the speed of the blower motor, commonly referred to as the FSU

ACM A/C Expansion Valve - E82, E88, E90, E91, E92, E93, F25

T#:377092

Part#: 64119226078

In Stock

$ 77.99

This product was last offered at the strikethrough price on
05-07-2026

$ 75.99 USD

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$ 75.99 USD

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Recommended to be replaced everytime you service the A/C system

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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A/C O-Ring (10.8mm Diameter)

T#:3018037

Part#: 64508375741

Ships in 1 Business Day

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD

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$ 2.99 USD

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O-Rings are used to seal various items and without them, you might experience a leak in your vehicle. When doing any sort of work on your air conditioning system, be sure to use new O-Rings to ensure a proper seal. Getting the correct O-Rings can be a chore, but ECS Tuning has made it easy.

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INA Clutch Pilot Bearing

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T#:399014

Part#: 034105313A

In Stock

$ 8.15

This product was last offered at the strikethrough price on
06-16-2026

$ 6.99 USD

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$ 6.99 USD

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Whenever you replace your clutch, you want to be sure that every single part that can be serviced while disassembled is new and in great shape. This saves you time down the road if a small component not serviced in a clutch change fails. This is a perfect replacement for your clutch pilot bearing with the same outside and inside diameter. A great way to be sure that everything installed during your clutch change works in harmony.

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