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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/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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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
Free Shipping on orders $49 and up
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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Dinan High Performance Heat Exchanger - F8x
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Dinan - Corporate Logo
T#:389998
Part#: D780-0001A
Ships in 8 Business Days
11% off MSRP $ 843.99

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

$ 749.99 USD
Free Shipping
11% off MSRP
$ 843.99

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

$ 749.99 USD
Free Shipping
As you increase performance and drive more aggressively, it becomes more and more important to improve your car's ability to keep its various fluids cool.

E90 335i/xi N54 Dinan High Capacity Oil Cooler System
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Dinan - Corporate Logo
T#:389600
Part#: E90N54-D570
Ships on Aug 5, 2026
Starting at $ 2,049.99 USD
Free Shipping on orders $49 and up
Starting at $ 2,049.99 USD
Free Shipping on orders $49 and up

High oil temps are one of the triggers that causes the engine electronics to curtail boost, cut power, and possibly switch to limp mode. The stock oil system was not designed with enough cushion for running more boost. We have seen limp modes come from stock vehicles on the race track. To prevent limp modes and reduced performance, Dinan has developed this oil cooler kit with much more surface area than stock.

The Dinan oil cooler kit fits in the stock location behind the front spoiler on the passenger side of the car. This is an ideal location to maximize the ram air effect from the front bumper. New air ducts and vents into the wheel well help improve air flow. PTFE hoses with race-quality fittings and all hardware are included for install. Some Dinan oil cooler kits can even be used to upgrade cars that never came with an oil cooler. Once you see the Dinan oil cooler side-by-side with the factory cooler, you will understand why it's so much better. The Dinan cooler is bigger in every way - larger capacity, greater surface area, and more cooling tubes.

StockDinan
Total Oil Volume9.5oz19oz
Surface Area45sq/in67.5sq/in
# Cooling Tubes1023
Tube Length90 in.207 in
Tube Area112.5sq/in414 sq/in

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The oil cooler kit is worth 3 points towards your Dinan badge.

This item fits the following BMWs:
2007-2010 E90 BMW 335i 335xi - Sedan

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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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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
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.

Show More Show Less

E92 335i/xi N55 Dinan High Capacity Oil Cooler System
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Dinan - Corporate Logo
T#:389596
Part#: E92N55-D570
Back Ordered
Starting at $ 1,799.99 USD
Free Shipping on orders $49 and up
Starting at $ 1,799.99 USD
Free Shipping on orders $49 and up

High oil temps are one of the triggers that causes the engine electronics to curtail boost, cut power, and possibly switch to limp mode. The stock oil system was not designed with enough cushion for running more boost. We have seen limp modes come from stock vehicles on the race track. To prevent limp modes and reduced performance, Dinan has developed this oil cooler kit with much more surface area than stock.

The Dinan oil cooler kit fits in the stock location behind the front spoiler on the passenger side of the car. This is an ideal location to maximize the ram air effect from the front bumper. New air ducts and vents into the wheel well help improve air flow. PTFE hoses with race-quality fittings and all hardware are included for install. Some Dinan oil cooler kits can even be used to upgrade cars that never came with an oil cooler. Once you see the Dinan oil cooler side-by-side with the factory cooler, you will understand why it's so much better. The Dinan cooler is bigger in every way - larger capacity, greater surface area, and more cooling tubes.

StockDinan
Total Oil Volume9.5oz19oz
Surface Area45sq/in67.5sq/in
# Cooling Tubes1023
Tube Length90 in.207 in
Tube Area112.5sq/in414 sq/in

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The oil cooler kit is worth 3 points towards your Dinan badge.

This item fits the following BMWs:
2011-2013 E92 LCI BMW 335i 335xi - Coupe
2011-2013 E93 LCI BMW 335i - Convertible

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