Oil Cooler for BMW 1 Series

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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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Turner Motorsport Billet Oil Cooler Thermostat Upgrade - N54 N55 ...
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Turner Motorsport - Corporate Logo
T#:28979318
Part#: 008731LA01KT
Ships on Sep 14, 2026
Sale - Save 25% $ 343.99

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

$ 257.99 USD
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Sale - Save 25%
$ 343.99

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

$ 257.99 USD
Free Shipping on orders $49 and up

The N54/N55 are the powerhouses of BMW, one of the most common tuning platforms, and a fan favorite for spirited driving. Being an N54/N55 owner you know that oil temps can get out of hand leaving you with an anxious feeling and the needle a little too close to the red on your gauge cluster. What if you could get the oil flowing faster, maintain lower temperatures, and still have proper engine warm-up?

Upgrade your N54/N55 engine with our Billet oil cooler housing, replacing the underperforming factory-cast aluminum unit. Engineered for enhanced performance and a blended aesthetic, our Turner oil cooler housing features an OEM+ black anodized finish and our own engineered lower-temperature thermostat. Unlike makeshift solutions like thermostat bypass kits, our housing integrates an OE thermostat, ensuring a gradual yet expedited engine warm-up process, similar to factory settings but faster.

Out goes the factory 110-degree Celsius (230F) thermostat, replaced by our 70-degree Celsius (158F) counterpart. This new thermostat triggers oil flow a significant 72 degrees Fahrenheit earlier than the factory version. This early flow translates into prolonged lower oil temperatures for both the oil cooler and engine, maintaining a happier, healthier engine with consistently lower operating temperatures.

For N54 owners seeking to use the full potential of their tuned or modified engines, our upgraded housing and thermostat are must-have additions, especially for those who frequent the track or enjoy spirited drives on winding roads. Even if you're not pushing your motor to its limits, this upgrade significantly enhances reliability. With rising oil temperatures, the risk of oil breakdown rises, resulting in compromised lubrication, more engine deposits, and increased wear over time. Our solution addresses these concerns, protecting your engine's longevity and performance, regardless of your driving style.

For vehicles equipped with the factory oil cooler, our housing offers a multitude of advantages and is a direct replacement for the OEM unit. If your vehicle lacks a factory oil cooler, this presents an ideal chance to upgrade your setup with our housing, enabling the addition of a factory cooler for enhanced performance and increased reliability. Our primary objective is to maintain optimal oil temperatures, ensuring proper lubrication for the engine's internal components, in turn prolonging their lifespan.

Features:

Thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than the factory unit Billet aluminum to replace the raw cast aluminum factory housing Optional cooler capability for cars without an OEM oil cooler Utilizes the lower temp thermostat to circulate oil sooner rather than an always open solution which inhibits warm-up Combine with OEM oil cooler to add cooling capacity to your FBO N54/N55 or replace the stock housing for a cooling upgrade using your existing cooler Replaceable thermostat and gaskets for easy maintenance Quick easy installation Kit Contents:

N54/N55 Billet Thermostat Housing Billet thermostat cover Low-temp thermostat Thermostat spring Housing and thermostat cover gaskets 2 Oil cooler line O-rings (17222245358) Product Development:

Our upgraded oil cooler housing was designed, engineered, tested, and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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N54/N55 Low Temp Oil Thermostat Kit - 70c
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:52621839
Part#: 008731KT1
In Stock
New Item
Sale - Save 23% $ 74.98

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

$ 57.74 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 74.98

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

$ 57.74 USD
Free Shipping on orders $49 and up

Upgrade your stock oil cooler thermostat for improved performance. Swap your factory 110-degree Celsius thermostat for a new 70-degree Celsius version for faster oil flow and extended temperature control. With oil temperatures reaching 230 degrees Fahrenheit by the time your factory thermostat opens, initiating oil flow at lower temperatures proves more effective than attempting to cool down already elevated temperatures.

Utilizing a factory-style thermostat, this upgrade can be used in all weather conditions and allows your engine to warm up properly, unlike thermostat bypass kits.

Kit contents:​

Lower temperature thermostat - 70c (158F) vs Factory 110c (230F)
Low temp thermostat spring

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ECS Tuning Thermostat Cover Upgrade Kit - BMW N54 3.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
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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70c Low Temp Oil Thermostat Kit - N54/N55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:30031507
Part#: N54N55LTKT1
Back Ordered
Sale - Save 18% $ 152.97

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

$ 125.58 USD
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Sale - Save 18%
$ 152.97

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

$ 125.58 USD
Free Shipping on orders $49 and up

Upgrade your stock oil cooler thermostat for improved performance. Swap out your existing cover with ease, replacing it with a durable billet cover. Upgrade from your 110-degree Celsius thermostat to a new 70-degree Celsius version for faster oil flow and extended temperature control. With oil temperatures reaching 230 degrees Fahrenheit by the time your factory thermostat opens, initiating oil flow at lower temperatures proves more effective than attempting to cool down already elevated temperatures.

Utilizing a factory-style thermostat, this upgrade can be used in all weather conditions and allows your engine to warm up properly unlike thermostat bypass kits.

Kit contents:

Billet thermostat housing cover
Replacement gasket
Hardware
Lower temperature thermostat - 70c (158F) vs Factory 110c (230F)
Low temp thermostat spring

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ECS Tuning Low Temp Oil Thermostat - BMW N54 N55 3.0L (2008+ Models) ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2008 and up models only
ECS - Corporate Logo
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
Free Shipping on orders $49 and up
Sale - Save 25%
$ 79.99

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

$ 59.99 USD
Free Shipping on orders $49 and up
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 Heat Exchanger - 17217536929
For vehicles with automatic transmission
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Bremmen Parts - Corporate Logo
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
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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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Bremmen Oil Cooler - BMW N52 N20 N55
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:4455968
Part#: 11427525333
Ships on Aug 24, 2026
Sale - Save 16% $ 38.99

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

$ 32.94 USD
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Sale - Save 16%
$ 38.99

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

$ 32.94 USD
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Also referred to as a heat exchanger, this radiator type component keeps your oil temps low.
Low-Temperature N54 Oil Thermostat Overhaul Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2008+ models only
Packaged by Turner - Corporate Logo
T#:26705034
Part#: 090743ECS09KT2
Back Ordered
Sale - Save 10% $ 249.99

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

$ 224.54 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 249.99

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

$ 224.54 USD
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Ensure optimal performance and longevity for your BMW N54 engine with this comprehensive upgrade kit assembled by enthusiasts at Turner Motorsport!

High-performance low-temp oil thermostat for superior cooling efficiency Anodized aluminum oil thermostat shaft ensures durability and surface protection Premium quality thermostat spring and bung for reliable operation Anodized thermostat cover with external fins maximizes cooling effectiveness Complete installation kit includes gasket and hardware for hassle-free setup Includes Liqui Moly Special-Tec LL 5W-30 oil, new oil filter, filter housing gasket, and drain plug for a complete service Elevate your N54's cooling system and maintain optimal oil temperatures between 194F and 230F with this all-inclusive upgrade kit.

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Low-Temperature N54 Oil Thermostat Overhaul Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For 2006-2007 models only
Packaged by Turner - Corporate Logo
T#:26705005
Part#: 090766ECS09KT2
Back Ordered
Sale - Save 10% $ 245.99

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

$ 221.14 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 245.99

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

$ 221.14 USD
Free Shipping on orders $49 and up

Ensure optimal performance and longevity for your BMW N54 engine with this comprehensive upgrade kit assembled by enthusiasts at Turner Motorsport!

High-performance low-temp oil thermostat for superior cooling efficiency Anodized aluminum oil thermostat shaft ensures durability and surface protection Premium quality thermostat spring and bung for reliable operation Anodized thermostat cover with external fins maximizes cooling effectiveness Complete installation kit includes gasket and hardware for hassle-free setup Includes Liqui Moly Special-Tec LL 5W-30 oil, new oil filter, filter housing gasket, and drain plug for a complete service Elevate your N54's cooling system and maintain optimal oil temperatures between 194F and 230F with this all-inclusive upgrade kit.

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