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Oil Cooler

Keeping your BMW's engine oil temperatures in check is extremely important. Temperature fluctuations in engine oil can lead to excessive wear and tear on critical internal components such as the pistons, turbos, rod bearings, main bearings, and more. Many BMWs come from the factory with a stock oil cooler, but these often are damaged from rocks, dirt, and other road debris and must be replaced to maintain reliability and consistent oil temperatures. For those looking to track their vehicle more than a handful of times a year, we recommend upgrading your oil cooler to an aftermarket alternative that allows for greater heat dissipation and increased oil reserves. This will help keep oil temps low even after extended track sessions, keeping you on the track longer and reducing downtime.
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Mosselman MSL Hardware - N54/N55/S55 w/ MSL Oil Thermostat Upgrade
Mosselman MSL Hardware - N54/N55/S55 w/ MSL Oil Thermostat Upgrade ...
Mosselman Turbosystems - Corporate Logo
T#:27338727
Part#: 030210011
In Stock
$ 26.99 USD
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$ 26.99 USD
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This hardware can be used in conjunction with your Mosselman MSL Oil Thermostat for added flair and durability.

Specifications:

Grade 5 Titanium Hex-Race head M8x25mm

Mosselman MSL Oil Thermostat Installation Kit
Mosselman MSL Oil Thermostat Installation Kit
Mosselman Turbosystems - Corporate Logo
T#:26404801
Part#: 030210012
In Stock
$ 27.99 USD
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$ 27.99 USD
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Prevent costly oil leaks when installing a new MSL oil cooler from Mosselman. These high-quality rubber gaskets ensure your oil thermostat is sealed properly, guaranteeing peak performance and long service life.

Kit includes:

2x Oil Pressure Hose O-Ring 1x Oil Filter Housing Gasket

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DO88- S65 Oil Cooler (Race)- E9X M3
DO88- S65 Oil Cooler (Race)- E9X M3
DO88 - Corporate Logo
T#:13891856
Part#: OC100
In Stock
$ 782.99 USD
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$ 782.99 USD
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The Beloved S65 V8 from BMW is well known and claimed to be one of the best engines ever introduced by the brand, but just like any other powertrain, it comes with its own set of issues. One of these issues is cooling issues. The team at DO88 took this opportunity to create and engineer a newly upgraded oil cooler to eliminate all of the previous issues. Boasting a 65% increase in core volume, a 59% larger active cooling area, and a 13.9% higher oil volume, this cooler definitely outperforms its OE counterpart. Nonetheless, this oil cooler is the perfect upgrade to your E9X M3!
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BMW Racing Oil Cooler - E90/E92 M3 - DKG / DCT
BMW Racing Oil Cooler - E90/E92 M3 - DKG / DCT
For DCT/DKG Transmission Only
DO88 - Corporate Logo
T#:23913952
Part#: OC-110
In Stock at Vendor
$ 1,299.99 USD
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$ 1,299.99 USD
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The do88 oil cooler boasts substantial advantages over the original: 217% larger core volume: 2208 cm3 vs. 696 cm3 178% greater active cooling area: 3456 cm2 vs. 1242 cm2 18% lower oil temperature past the oil cooler: 74°C vs. 90°C 110% larger oil volume: 6.5dl vs. 3.1dl Convenient drop-in fitment for the specified cars.
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DO88 Racing Oil Cooler - E46 M3
DO88 Racing Oil Cooler - E46 M3
DO88 - Corporate Logo
T#:13891842
Part#: OC150
Ships on Sep 15, 2026
$ 749.99 USD
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$ 749.99 USD
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With a 185% bigger core volume, 50% bigger cooling area, and a 79% higher oil volume, this oil cooler compensates on no fronts. Built for the track but just as capable on the road, DO88's upgraded oil cooler for the E46 M3 gives you maximum performance and compromises nowhere.
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DO88 Racing Auxiliary Oil Cooler - E46 M3
DO88 Racing Auxiliary Oil Cooler - E46 M3
DO88 - Corporate Logo
T#:13891851
Part#: OC120E46
In Stock
$ 646.99 USD
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$ 646.99 USD
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This racing oil cooler shines in low-pressure situations, for example, power steering oil cooling or gearbox oil cooling. This oil cooler comes ready to install with hardware.
DO88 Race Power Steering Oil Cooler - E90/E92
DO88 Race Power Steering Oil Cooler - E90/E92
DO88 - Corporate Logo
T#:13891852
Part#: OC120
In Stock at Vendor
$ 646.99 USD
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$ 646.99 USD
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Boasting a 261% increase in core volume, a 100% increase in active cooling area, and a 100% larger oil volume, this power steering oil cooler is an absolute no-brainer. The second one installs wider wheels or stickier tires, the steering servo motor will start getting a run for its money, leaving the opportunity for heat soak. With our of development and rigorous testing, this oil cooler suits track use just as much as street use and is the perfect upgrade for your vehicle!
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Do88 Transmission Cooler, BMW M2 M3 M4 G80 G82 G87 (S58)
Do88 Transmission Cooler, BMW M2 M3 M4 G80 G82 G87 (S58)
DO88 - Corporate Logo
T#:43615041
Part#: OC-210
Ships on Sep 14, 2026
$ 684.99 USD
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$ 684.99 USD
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DO88 Racing Oil Cooler - F8X M2C/M3/M4
DO88 Racing Oil Cooler - F8X M2C/M3/M4
DO88 - Corporate Logo
T#:13891841
Part#: OC170
Ships on Sep 14, 2026
$ 672.99 USD
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$ 672.99 USD
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The OE oil cooler on the F8X M2C/M3/M4 is prone to debris damaging it leading to catastrophic oil leaks and other not-good scenarios. DO88 addressed this issue with an oil cooler upgrade that is sure to stand the test of time with its rigid, durable design also boasting some impressive performance figures like 20% larger frontal surface area, and 63% greater core volume, leaving you with not only a durable option but a high-performance option for your F8X BMW!
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DO88 DCT Racing Oil Cooler For E90/E92 M3
DO88 DCT Racing Oil Cooler For E90/E92 M3
DO88 - Corporate Logo
T#:13891855
Part#: OC110
In Stock at Vendor
$ 1,299.99 USD
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$ 1,299.99 USD
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With a 217% bigger core volume, 178% bigger cooling area, and a 110% higher oil volume, this oil cooler compensates on no fronts. Built for the track but just as capable on the road, DO88's upgraded oil cooler for the E90/E92 M3 gives you maximum performance and compromises nowhere.
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BMW F87 M2 DO88 Racing Oil Cooler
BMW F87 M2 DO88 Racing Oil Cooler
DO88 - Corporate Logo
T#:13891847
Part#: OC130
Ships on Sep 14, 2026
$ 742.99 USD
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$ 742.99 USD
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BMW F87 M2 DO88 Racing Oil Cooler is designed to significantly enhance engine cooling performance. Featuring a 134% larger core volume, 84% increased cooling area, and a 25% higher oil capacity, this high-performance oil cooler delivers superior cooling efficiency. Engineered for both track and road use, the DO88 Racing Oil Cooler ensures optimal performance without compromising on quality.

  • Increased Core Volume: 134% larger core volume for improved cooling capacity.
  • Expanded Cooling Area: 84% larger cooling area for enhanced heat dissipation.
  • Higher Oil Volume: 25% increased oil volume to maintain optimal temperatures.
  • Track and Road Ready: Built to handle high-performance demands on and off the track.
  • Top-Quality Engineering: Designed by DO88 for maximum durability and efficiency.
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