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BMW Thermostats

BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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Bremmen Parts - Corporate Logo
T#:637061
Part#: 11537586885
In Stock
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$ 90.74 USD
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Includes housing and sealing o-ring A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also helping to increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Bremmen Parts - Corporate Logo
T#:579865
Part#: 54402
Ships on Jul 25, 2025
$ 23.99 USD
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$ 23.99 USD
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The plastic thermostat cover in your BMW is a known point of failure. Throughout the years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating.
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Bremmen Parts - Corporate Logo
T#:598978
Part#: 11531436386
In Stock
$ 89.99 USD
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$ 89.99 USD
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A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Genuine BMW Motorsport - Corporate Logo
T#:3
Part#: 11531417215
Ships Aug 5, 2025
$ 206.99 USD
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$ 206.99 USD
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E46 M3 Motorsport Thermostat, 55*C (Also fits Euro E36 M3 engine). A Genuine BMW part this thermostat opens at a much lower temperature than stock to keep your S54 engine running cooler in race applications.
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Bremmen Parts - Corporate Logo
T#:25606667
Part#: 11537534521M
In Stock
$ 153.99 USD
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$ 153.99 USD
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Bremmen Parts - Corporate Logo
T#:26504937
Part#: 11538674895M
In Stock
$ 162.99 USD
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$ 162.99 USD
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Bremmen Parts - Corporate Logo
T#:30828065
Part#: 11538635689M
In Stock
Sale - Save 25% $ 119.99
$ 89.99 USD
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Sale - Save 25% $ 119.99
$ 89.99 USD
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Bremmen Parts - Corporate Logo
T#:15511826
Part#: 11537549476
In Stock
$ 79.99 USD
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Overheating your N52 or N54 engine can be detrimental to the longevity of your engine. We also recommend replacing your hardware 07119903851 x2

Bremmen Parts - Corporate Logo
T#:26494584
Part#: 11537509227
In Stock
$ 56.99 USD
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$ 56.99 USD
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Bremmen Parts - Corporate Logo
T#:26538316
Part#: 11537601158
In Stock
Sale - Save 25% $ 91.99
$ 68.99 USD
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Sale - Save 25% $ 91.99
$ 68.99 USD
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Bremmen Parts - Corporate Logo
T#:582479
Part#: 11538674895
In Stock
$ 105.99 USD
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$ 105.99 USD
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Thermostat - B48
For vehicles with the Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Bremmen Parts - Corporate Logo
T#:23648673
Part#: 11537644811
In Stock
Sale - Save 15% $ 213.99
$ 181.89 USD
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Sale - Save 15% $ 213.99
$ 181.89 USD
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Bremmen Parts - Corporate Logo
T#:588457
Part#: 115375345211KT
In Stock
Sale - Save 16% $ 77.99
$ 65.87 USD
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Sale - Save 16% $ 77.99
$ 65.87 USD
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MINI R5X R6X Thermostat Housing W/ Thermostat Kit

Upgrade your MINI's cooling system with the MINI R5X R6X Thermostat Housing W/ Thermostat Kit. Commonly known as the thermostat neck or housing, this crucial part is responsible for regulating coolant flow to the pressure tank from the highest point on the head. Symptoms of a worn-out thermostat housing include cracking around the gasket seal, leading to leaks.

This comprehensive kit includes:

  • Profile gasket
  • Temp sensor
  • Two O-rings
  • Clip and bleeder screw

Additionally, this kit comes with a generous 3-year warranty, providing peace of mind for your MINI's cooling system.

Ensure optimal cooling system performance and prevent leaks with the MINI R5X R6X Thermostat Housing W/ Thermostat Kit.

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Bremmen Parts - Corporate Logo
T#:36913362
Part#: 11538606278
In Stock
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Sale - Save 25% $ 50.99
$ 38.24 USD
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$ 38.24 USD
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This junction heat hose, made from rubber, is prone to cracking, dry rot, and brittleness over time, often leading to coolant leaks at the front of the engine. Such leaks pose a significant risk to your engine’s health, as rapid coolant loss can cause overheating and severe damage.

Replace your worn or leaking heat hose with this high-quality OE replacement from Bremmen Parts. Engineered for a precise fit and long-lasting performance, this hose ensures a reliable repair and helps protect your engine from potential overheating.

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Genuine BMW Motorsport - Corporate Logo
T#:1171
Part#: TMS1171
Ships Jul 8, 2025
$ 509.61 USD
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$ 509.61 USD
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This is a genuine BMW Motorsport part, designed specifically for BMW racing applications. We use this exact thermostat setup in our Championship-winning E46 330i race car. It is designed to be used on all M54 and M52TU double-VAN0S engines, as used in the 1999-2000 E46 323/328 and 2001-2005 E46 325/330. This 60 degree C (140 defrees F) thermostat comes complete with plastic thermostat housing. It does not use the plug and wiring for the stock DME so this should only be used with an aftermarket engine management system (Motec, Bosch, etc).

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Genuine BMW Motorsport - Corporate Logo
T#:337991
Part#: 11531417215
Ships Aug 5, 2025
Sale - Save 1% $ 232.99
Starting at $ 230.91 USD
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Sale - Save 1% $ 232.99
Starting at $ 230.91 USD
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E46M3 Motorsport Thermostat 55C (Also fits Euro E36 M3 engine) A Genuine BMW part this thermostat opens at a much lower temperature than stock to keep your S54 engine (or Euro S50/S52 engine) running cooler in race applications.
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Bremmen Parts - Corporate Logo
T#:591532
Part#: 11538674895KT1KT
In Stock
Sale - Save 25% $ 123.99
$ 92.97 USD
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Sale - Save 25% $ 123.99
$ 92.97 USD
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Bremmen Parts - Corporate Logo
T#:26538322
Part#: 11537512733-M
In Stock
$ 50.99 USD
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Bremmen Parts - Corporate Logo
T#:15511819
Part#: 11537512733
In Stock
Sale - Save 5% $ 15.99
$ 15.19 USD
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$ 15.19 USD
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Typically referred to as the thermostat neck / housing, this part mounts on the highest point on the head and controls the flow back to the pressure tank. Cracking, which usually occurs around the gasket seal and leaks, are symptoms that it’s worn out. This item does not include the thermostat.
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Bremmen Parts - Corporate Logo
T#:588766
Part#: 11537565526
In Stock
Sale - Save 25% $ 5.99
$ 4.49 USD
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$ 4.49 USD
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Enhance your Mini's thermostat functionality with the Flange Screw, an essential component for proper installation. Designed specifically for use in the thermostat location, this screw ensures secure and reliable operation. Benefits include:

  • Ensures proper installation of the thermostat.
  • Provides secure attachment.
  • Compatible with Mini models.
  • Enhances engine performance and temperature regulation.
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Bremmen Parts - Corporate Logo
T#:36913387
Part#: 12518614952
In Stock
New Item
$ 42.99 USD
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$ 42.99 USD
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Bremmen Parts - Corporate Logo
T#:28138103
Part#: 07131486714KT
In Stock
Sale - Save 25% $ 3.99
$ 2.99 USD
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Sale - Save 25% $ 3.99
$ 2.99 USD
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MINI W10 W11 Bolt And Washer

Enhance your MINI's engine performance with the MINI W10 W11 Bolt And Washer, designed to secure the thermostat housing to the side of the engine.

Benefits:

  • Ensures secure attachment of the thermostat housing
  • Prevents leaks and ensures proper functioning of the thermostat
  • High-quality construction for durability and reliability
  • Easy replacement process

Upgrade your MINI's engine with the MINI W10 W11 Bolt And Washer for reliable performance.

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Bremmen Parts - Corporate Logo
T#:13496663
Part#: 11537829959
Ships in 2 Business Days
Sale - Save 3% $ 20.99
$ 20.36 USD
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Sale - Save 3% $ 20.99
$ 20.36 USD
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MINI W10 Thermostat Housing W/ Cap

Upgrade your MINI's cooling system with the MINI W10 Thermostat Housing W/ Cap, a crucial component that regulates coolant flow and ensures optimal engine temperature.

Benefits:

  • Essential component for maintaining proper engine temperature
  • Prevents overheating and engine damage
  • Includes cap for complete installation
  • High-quality construction for durability and reliability

Upgrade your MINI's cooling system with the MINI W10 Thermostat Housing W/ Cap for reliable engine performance.

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Bremmen Parts - Corporate Logo
T#:20782215
Part#: 11538631943
Ships in 8 Business Days
$ 234.99 USD
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$ 234.99 USD
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Bremmen Parts - Corporate Logo
T#:15511827
Part#: 11537502779
Ships Jul 21, 2025
$ 46.99 USD
$ 46.99 USD
If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.
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Bremmen Parts - Corporate Logo
T#:15511821
Part#: 11537586784
Ships Jul 21, 2025
Sale - Save 3% $ 79.99
$ 77.59 USD
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Sale - Save 3% $ 79.99
$ 77.59 USD
Free Shipping on orders $49 and up
If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.
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Bremmen Parts - Corporate Logo
T#:15511838
Part#: 11537596787
Ships Jul 21, 2025
Sale - Save 3% $ 19.99
$ 19.39 USD
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Sale - Save 3% $ 19.99
$ 19.39 USD
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This thermostat opens and closes with the temperature of the cooling fluid. It works to control the flow of coolant in your engine and is common fault item on MINI vehicles. A warning light on the dash, overheating, lack of heat while the vehicle is in motion or coolant leaks are signs that this unit is close to failure. During replacement, be sure to pick up some MINI Coolant to replenish your system.
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Bremmen Parts - Corporate Logo
T#:15511816
Part#: 11531436386
Ships Jul 21, 2025
$ 26.99 USD
$ 26.99 USD
A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
Show More Show Less
Bremmen Parts - Corporate Logo
T#:15511820
Part#: 11537580627
Ships Jul 21, 2025
Sale - Save 3% $ 61.99
$ 60.13 USD
Sale - Save 3% $ 61.99
$ 60.13 USD
The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat. If the thermostat gets stuck closed, it allows no fluid to flow and ends up overheating the coolant already in the engine. To fix this problem and get your vehicle's heat restored, replace your thermostat. Complete assembly, including housing.
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Bremmen Parts - Corporate Logo
T#:36066205
Part#: 11531485847
Ships on Aug 11, 2025
New Item
$ 17.99 USD
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Bremmen Parts - Corporate Logo
T#:583893
Part#: 12517646145
Special Order: No Guaranteed ETA
$ 28.99 USD
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Bremmen Parts - Corporate Logo
T#:388457
Part#: 11531437526
Back Ordered
$ 52.99 USD
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$ 52.99 USD
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Comes with aluminum housing, o-ring & sensor