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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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N54 & E8x/E9x N55 Mosselman Billet Oil Thermostat

For Gasket/Install kit see T#4799665

T#:4621131

Part#: OTN54.T85

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$ 379.99 USD

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The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.

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ECS Tuning Thermostat Cover Upgrade Kit - BMW N54 3.0L

10X Entries Into Our F80 M3 Sweepstakes

T#:6924312

Part#: 090744ECS09

Back Ordered

Sale - Save 15% $ 79.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.99 USD

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Sale - Save 15%

$ 79.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.99 USD

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This ECS Tuning Anodized Aluminum Thermostat Cover Plate is a simple way to add a bespoke look to your engine bay. If you have replaced your oil thermostat or deleted your cooler, now is the perfect time for this mod. Installs in minutes and ensures a positive seal for the oiling system. Features: Anodized Black Includes hardware and seal Heatsink fins for added cooling

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ECS Tuning Low Temp Oil Thermostat - BMW N54 N55 3.0L (2008+ Models) ...

10X Entries Into Our F80 M3 Sweepstakes
For 2008 and up models only

T#:6924321

Part#: 090743ECS09

In Stock

Sale - Save 25% $ 79.99

This product was last offered at the strikethrough price on
06-14-2026

$ 59.99 USD

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Sale - Save 25%

$ 79.99

This product was last offered at the strikethrough price on
06-14-2026

$ 59.99 USD

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Is your N54/N55 oil temp running too high? The most likely cause is a faulty OE oil thermostat. With this ECS Low Temp Oil Thermostat Kit, you can keep your engine happy with oil temps holding between 194F (90c) to 230F (110c). This is the perfect solution for both higher milage models and models that have been tuned or further upgraded with performance turbochargers, Kit includes: Oil Thermostat Bung Oil Thermostat Spring Oil Thermostat Shaft Assembly

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BMW N54 N55 Oil Cooler Valve - Red Burger Motorsport Sport (4/2007+) ...

T#:588633

Part#: OILVALVE-RED

Ships in 2 Business Days

$ 59.00 USD

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$ 59.00 USD

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This simple engine oil cooler valve from Burger Motorsports increases flow to your fender mounted engine oil/air heat exchanger resulting in lower engine oil temperatures and more consistent performance during heavy throttle. Less restrictive than the spring-loaded units. Installs in minutes and is fully reversible. CNC machined for a precise fit and anodized for protection. Made in the USA. Requires BMW's external sport engine oil cooler which is standard on most 2008+ models, optional on 2007 E9x models. FEATURES AND BENEFITS Easily lower engine oil temperature Stock oil cooler will work more efficient More consistent performance CNC Machined for a perfect fit Made in USA

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M50 Oil Cooler Cap

T#:401463

Part#: B015-8BL

Ships on Oct 27, 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 Oct 27, 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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ECS Tuning Oil Cooler Kit - BMW E9X N54 N55 3.0L

10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a stock oil cooler only!

T#:6924307

Part#: 090749ECS09

Special Order: No Guaranteed ETA

Sale - Save 5% $ 452.99

This product was last offered at the strikethrough price on
06-14-2026

$ 430.34 USD

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Sale - Save 5%

$ 452.99

This product was last offered at the strikethrough price on
06-14-2026

$ 430.34 USD

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BMW's N54 & N55 engines are very capable motors, but one drawback can be high oil temps. Even on vehicles with a factory oil cooler, oil temps can start to run away during extended track sessions or in very hot climates. This can lead to reduced horsepower, unintended engine and bearing wear, and even complete engine failure if not properly handled. ECS Tuning has an answer for just this problem, a Performance Oil Cooler Kit. This kit is easily installed behind the kidney grilles in addition to the stock cooler (located in the lower front bumper), receiving significantly higher amounts of fresh air and doubling the cooling capacity! Kit Includes: Oil Cooler Radiator Two Braided Oil Lines w/ AN Fittings Oil Distribution Block w/ AN Ports Distribution Block Mounting Bolt NOTE: Installation of the oil cooler radiator may require drilling out mounting holes depending on the selected location. Mounting hardware for the oil cooler is not included. Professional installation is recommended!

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Vargas Billet Oil Cooler Adapter Fittings - BMW G80 M3, G82 M4, G83 M...

2X Entries Into Our F80 M3 Sweepstakes

T#:51778119

Part#: VTT-G8X-OILCOOLE

Ships in 10 Business Days

$ 109.00 USD

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$ 109.00 USD

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The VTT G8X Billet Oil Cooler Adapter Fittings are the essential building blocks for any custom S58 oiling project.

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