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Oil Cooler

BMWs use an external oil cooler to regulate the temperature of engine oil and prevent a breakdown in viscosity and lubrication characteristics. If yours has suffered damage or developed a slight leak, make sure to replace it and keep the engine oil where it is supposed to be. Keeping this system properly serviced will significantly improve performance and increase engine life.

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M50 Oil Cooler Cap

T#:401463

Part#: B015-8BL

Ships on Sep 9, 2026

$ 243.99 USD

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$ 243.99 USD

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Rally Road M50 Oil Cooler Cap Adapter Kit

T#:401511

Part#: RROCCK

Ships on Sep 9, 2026

Starting at $ 243.99 USD

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Starting at $ 243.99 USD

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Rally Road Productions, Inc. is a team supported by a group of people with great abilities in their area of expertise. From the "web guy" and driving instructor friends, to owners of various machine shops, they have surrounded ourselves with people that can be trusted to create and manufacture quality products. This is the key to ensuring everything that they sell will perform as it was intended. The goal is to increase customer satisfaction and make the customization or performance enhancement of your vehicle a more enjoyable venture.

This oil cooler system is race tested and proven to outflow the euro M3 oil filter housing. Additionally, this particular system uses a sealing mechanism to direct the oil flow through the cooler lines and then through the oil filter. Other cooler caps do not provide this seal and therefore the external oil coolers and lines act as a "balloon". The lines and cooler are pressurized, but oil does not flow through them. Flowing oil means it is being cooled and not just acting as an external reservoir.

Flow testing reveals that the oil cooler cap will outflow the Euro M3 Oil Filter Housing by more than 80% at the same, pressure, RPM, and oil temperature. In the upper RPM range, there is nearly a 100% improvement in flow from the RallyRoad oil cooler cap when compared to the Euro M3 oil filter housing. This is a massive improvement over OE and is a worthwhile upgrade, especially in engines that see severe duty.

Features:

-8AN o-ring ports to provide a leak free fitting without the use of Teflon tape or sealant used by other oil cooler caps.
Viton o-rings are used throughout to maintain function and sealing in a high-temperature oil environment.
Use of the stock filter cap bolt to reduce cost and simplify installation.
An internal sealing mechanism to direct oil flow through the oil cooler and through the filter.
1/8" NPT side port for external oil pressure gauge.

Kit Includes:

Oil filter cap with fittings
Oil filter sealing ring
BMW MANN Oil Filter and gasket

This part fits the following BMWs
1992-1999 E36 323i 325i 325is 328i 328is

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Bremmen Oil Filter Housing And Heat Exchanger

T#:8677178

Part#: 11428596283

In Stock

Sale - Save 38% $ 159.99

This product was last offered at the strikethrough price on
07-26-2026

$ 99.99 USD

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Sale - Save 38%

$ 159.99

This product was last offered at the strikethrough price on
07-26-2026

$ 99.99 USD

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Includes heat exchanger and gaskets. ?OE Cross References: 11428585624 11428596283

BMW N54 N55 Heat Exchanger - 17217536929

T#:8677204

Part#: 17217536929

Special Order: No Guaranteed ETA

Sale - Save 15% $ 128.99

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

$ 109.28 USD

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Sale - Save 15%

$ 128.99

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

$ 109.28 USD

Add to Wish List

BMW N54 N55 Heat Exchanger - 17217536929 is designed to maintain optimal transmission oil temperatures, ensuring reliable performance and longevity for your BMW. This high-quality heat exchanger effectively manages heat, preventing overheating and potential damage to the transmission system.

Optimal Temperature Control: Keeps transmission oil at a safe temperature, enhancing overall performance.
Durable Construction: Built to withstand high temperatures and demanding driving conditions.
Improved Reliability: Helps prevent transmission overheating, which can lead to costly repairs.
Direct Replacement: Engineered to fit seamlessly with BMW N54 and N55 engines.

Turner Motorsport's BMW N54 N55 Heat Exchanger - 17217536929 is an essential component for maintaining the efficiency and durability of your transmission system.

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VF Engineering Oil Cooler With Oil Lines - E9X M3

T#:378330

Part#: VFAOC-E9MKT

Ships on Sep 9, 2026

$ 1,692.99 USD

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$ 1,692.99 USD

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This oil cooler from VF Engineering is the perfect BMW oil cool for your M3. Produced by CSF for VF engineering, this cooler contains desely packed bars and plates for the greatest possible surface area for heat exchange. This oil cooler offers many benefits over stock, including 2 extra rows of even better cooling. In addition, this cooler is compatible with all modifications that the stock cooler is applicable such as a supercharger system.

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