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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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Bavarian Autosport - Corporate Logo
T#:12544802
Part#: 11531437040
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$ 78.74 USD
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$ 78.74 USD
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The plastic thermostat cover in your BMW is a known point of failure. Throughout years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating. Eliminate one of the weak links in your cooling system with a replacement aluminum thermostat housing. By installing this aluminum unit, you have no worries as far as plastic housing cracks go
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Bremmen Parts - Corporate Logo
T#:579865
Part#: 54402
Ships on Jul 22, 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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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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Bavarian Autosport - Corporate Logo
T#:15511823
Part#: 11537598865
Ships on Aug 22, 2025
Sale - Save 25% $ 75.99
$ 56.99 USD
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$ 56.99 USD
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Replace your thermostat housing at any signs of leaks or premature failure. Includes housing. Does not include a housing gasket.

Bremmen Parts - Corporate Logo
T#:30828065
Part#: 11538635689M
In Stock
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$ 89.99 USD
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$ 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
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$ 68.99 USD
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$ 68.99 USD
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Bavarian Autosport - Corporate Logo
T#:18003829
Part#: 11517805811
In Stock
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$ 39.74 USD
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$ 39.74 USD
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Genuine MINI - Corporate Logo
T#:393397
Part#: 11538674895
In Stock
Sale - Save 5% $ 159.99
$ 151.99 USD
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$ 151.99 USD
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This Genuine MINI part is 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. Up to 7/2012 production will need adapter   12518611289  .   Production  7/2012 - 2/2013 will need adapter  12518614952 .  2/2013 + need no adapter. 

This is usually found by a blue coolant pooling on top of the transmission housing leaking from the thermostat itself. You will need to replace this asap as you can overheat and cook the engine. 

This kit includes:

  • Profile gasket
  • O-ring
  • Vent screw
  • Two seals and a bleeder screw
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Genuine MINI - Corporate Logo
T#:174393
Part#: 13628603908
In Stock
7% off MSRP $ 37.61
$ 34.99 USD
Limited Qty Sale
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7% off MSRP $ 37.61
$ 34.99 USD
Limited Qty Sale
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Genuine MINI TEMPERATURE SENSOR, COOLANT

Genuine MINI - Corporate Logo
T#:546869
Part#: 11538699290
In Stock
Sale - Save 5% $ 159.99
$ 151.99 USD
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$ 151.99 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
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$ 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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$ 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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$ 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 MINI - Corporate Logo
T#:186565
Part#: 13628602086
Ships in 1-2 days
10% off MSRP $ 56.47
$ 50.99 USD
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10% off MSRP $ 56.47
$ 50.99 USD
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Genuine Mini Temperature Sensor
Fits BMW Engines including:
N16,N18

Bremmen Parts - Corporate Logo
T#:591532
Part#: 11538674895KT1KT
In Stock
Sale - Save 25% $ 123.99
$ 92.97 USD
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Genuine MINI - Corporate Logo
T#:557480
Part#: 11538674895KT
In Stock
Sale - Save 5% $ 174.99
$ 166.21 USD
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$ 166.21 USD
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This Genuine MINI Kit part is to prevent cooling issues before they begin with a Thermostat Replacement Kit. The experts at Turner have identified all of the common parts that fail on a MINI and included them all in this convenient kit.

If your MINI has high miles or needs one of these unit replaced its a little insurance to replace all the critical components. (Included in this kit are all Genuine MINI parts.)

This is usually found by a blue coolant pooling on top of the transmission housing leaking from the thermostat itself. You will need to replace this asap as you can overheat and cook the engine. 

 

Up to 7/2012 production will need adapter  12518611289 .   Production  7/2012 - 2/2013 will need adapter  12518614952  2/2013 + need no adapter. 

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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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Sale - Save 25% $ 5.99
$ 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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Genuine MINI - Corporate Logo
T#:20682
Part#: 12517646145
Ships Jul 1, 2025
2% off MSRP $ 47.99
$ 46.99 USD
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2% off MSRP $ 47.99
$ 46.99 USD
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Genuine MINI ADAPTER LEAD 12517646145
Fits BMW Engines including:
N14,N16

Bremmen Parts - Corporate Logo
T#:28138103
Part#: 07131486714KT
In Stock
Sale - Save 25% $ 3.99
$ 2.99 USD
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$ 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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Genuine MINI - Corporate Logo
T#:574394
Part#: 11537534521KT3
In Stock
Sale - Save 5% $ 174.99
$ 166.21 USD
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$ 166.21 USD
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Genuine MINI Thermostat Replacement Kit is designed to prevent cooling issues before they arise, ensuring optimal performance for your BMW or MINI. This comprehensive kit includes all the critical components commonly known to fail, as identified by experts in the industry. With Genuine MINI parts included, this kit offers peace of mind for drivers with high-mileage vehicles or those needing replacements.

By replacing your thermostat and related components, you can help maintain your vehicle's cooling system and prevent overheating. This kit includes a thermostat with housing and three genuine OEM thermostat housing bolts, providing everything needed for a complete and effective replacement.

  • Prevents cooling issues, ensuring optimal engine performance
  • Comprehensive kit includes all critical components known to fail
  • Features Genuine MINI parts for reliable quality and fit
  • Ideal for high-mileage vehicles needing maintenance
  • Includes thermostat with housing and OEM bolts for easy installation
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Bremmen Parts - Corporate Logo
T#:13496663
Part#: 11537829959
Ships in 3 Business Days
Sale - Save 3% $ 20.99
$ 20.36 USD
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$ 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 9 Business Days
$ 234.99 USD
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$ 234.99 USD
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Genuine MINI - Corporate Logo
T#:19202
Part#: 11531486703
Ships in 1-2 days
Sale - Save 5% $ 22.99
$ 21.84 USD
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Sale - Save 5% $ 22.99
$ 21.84 USD
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Genuine MINI ENGINE RADIATOR CAP
Fits BMW Engines including:
W10

Genuine MINI - Corporate Logo
T#:178205
Part#: 12518614952
Ships in 1-2 days
4% off MSRP $ 58.58
$ 56.41 USD
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4% off MSRP $ 58.58
$ 56.41 USD
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Genuine MINI THERMOSTAT ADAPTER
Fits BMW Engines including:
N14,N16,N18



Bremmen Parts - Corporate Logo
T#:15511827
Part#: 11537502779
Ships Jul 22, 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 22, 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 22, 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 22, 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.
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Bremmen Parts - Corporate Logo
T#:15511820
Part#: 11537580627
Ships Jul 22, 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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Bavarian Autosport - Corporate Logo
T#:18003828
Part#: 11538635689
Ships on Aug 11, 2025
Sale - Save 21% $ 65.99
$ 51.84 USD
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Sale - Save 21% $ 65.99
$ 51.84 USD
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BMW N20 2.0L Thermostat With Housing ensures optimal engine performance by maintaining the correct operating temperature. This crucial component regulates coolant flow, preventing issues related to overheating or inadequate cooling. The thermostat plays a vital role in your BMW’s temperature gauge, influencing engine efficiency and longevity.

  • Precision Temperature Control: Maintains the engine within the ideal temperature range for optimal performance and efficiency.
  • Complete Assembly: Includes the thermostat and housing, offering a convenient and comprehensive solution for replacements.
  • Reliable Operation: Helps prevent common issues such as overheating or running too cool by regulating coolant flow effectively.
  • Enhanced Engine Life: Ensures the engine operates under ideal conditions, extending its lifespan and improving overall performance.
  • High-Quality Construction: Designed to meet or exceed OEM specifications, providing durability and reliable performance.

Upgrade your BMW with the N20 2.0L Thermostat With Housing to ensure reliable temperature management and enhanced engine performance.

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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