BMW Engine Parts for BMW E93 M3 S65 4.0L

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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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OEM INA Accessory Belt Tensioner Pulley - Water Pump/Alternator - BMW...
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Ina - Corporate Logo
T#:31059479
Part#: 11287838194KT
Ships in 3 Business Days
$ 30.99 USD
Free Shipping on orders $49 and up
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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Ina - Corporate Logo
T#:31092500
Part#: 11287838196KT
In Stock
$ 25.99

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

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up
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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Future Classic Aluminum Oil Filter Housing Cap - E9X S65
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Future Classic - Corporate Logo
T#:28038209
Part#: FC-E9X-S65-OFC
Ships in 3 Business Days
Starting at $ 240.00 USD
Free Shipping on orders $49 and up
Starting at $ 240.00 USD
Free Shipping on orders $49 and up

The factory E9X oil filter housing cap is made of plastic which, by nature of the material, dissipates heat poorly and is prone to failure over repeated heat cycles. By contrast to the OEM unit, our cap is constructed from 6061-T6 aircraft-grade aluminum which promises two functional benefits: greater longevity and cooler running throughout its life cycle.

So too will the oil itself benefit: By getting your oil up to temperature quickly, but tangentially evacuating excess heat, the aluminum oil filter housing cap will help your fluid operate within its working range while effectively preventing thermal breakdown.

Each cap has been meticulously manufactured on a DMG Mori 5-Axis with specially sourced tooling to achieve some of the cap's intricate details. Anodized, the housing cap’s details are happily preserved but offer up a valuable way for an enthusiast to express their individuality. Four colors are available at launch to maximize choice: Ferrari Red, Royal Blue, Hard Coat Clear, and Hard Coat Black.

Appropriately, our latest livery box echoes a Gulf theme—echoing our motorsport intent and ties to the culture that has inspired us to create from the beginning.

Product Details:

Compatible with S65-equipped BMW vehicles Plug-and-play replacement for OE plastic cap CNC precision machined from 6061-T6 aerospace aluminum Improves heat dissipation and increases cap longevity Four anodizing options: Ferrari Red, Royal Blue, Hard Coat Clear, & Hard Coat Black Proudly made in USA

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OEM INA Idler Pulley - Multiple BMWs
For vehicles with a production date up to 04/2008
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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Ina - Corporate Logo
T#:1626
Part#: 11287841228
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
$ 18.99 USD
Free Shipping on orders $49 and up
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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