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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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Bav Auto Thermostat With Aluminum Housing - M52TU M54
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:12544802
Part#: 11531437040
In Stock
Sale - Save 19% $ 104.99

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

$ 84.99 USD
Free Shipping on orders $49 and up
Sale - Save 19%
$ 104.99

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

$ 84.99 USD
Free Shipping on orders $49 and up
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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Thermostat Assembly
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:15511823
Part#: 11537598865
In Stock
Sale - Save 10% $ 78.99

This product was last offered at the strikethrough price on
08-11-2026

$ 71.09 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 78.99

This product was last offered at the strikethrough price on
08-11-2026

$ 71.09 USD
Free Shipping on orders $49 and up
Replace your thermostat housing at any signs of leaks or premature failure. Includes housing. Does not include a housing gasket.
BMW N20 2.0L Thermostat With Housing
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:18003828
Part#: 11538635689
In Stock
Sale - Save 20% $ 67.99

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

$ 54.39 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 67.99

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

$ 54.39 USD
Free Shipping on orders $49 and up

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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Active Autowerke - Corporate Logo
T#:397222
Part#: 14-009
Ships in 10 Business Days
$ 56.99 USD
Free Shipping on orders $49 and up
Plastic thermostat housing cracked on your M50?

Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.

Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included.
For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.

Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.
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Thermostat With Housing
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:18003829
Part#: 11517805811
In Stock
Sale - Save 20% $ 58.99

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

$ 47.19 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 58.99

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

$ 47.19 USD
Free Shipping on orders $49 and up
Genuine MINI - Corporate Logo
T#:393397
Part#: 11538674895
In Stock
19% off MSRP $ 212.67

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

$ 171.99 USD
Free Shipping
19% off MSRP
$ 212.67

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

$ 171.99 USD
Free Shipping

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#:20682
Part#: 12517646145
In Stock
2% off MSRP $ 50.18

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

$ 48.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 50.18

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

$ 48.99 USD
Free Shipping on orders $49 and up
Genuine MINI ADAPTER LEAD 12517646145
Fits BMW Engines including:
N14,N16

Genuine MINI - Corporate Logo
T#:546869
Part#: 11538699290
In Stock
15% off MSRP $ 243.36

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

$ 205.96 USD
Free Shipping
15% off MSRP
$ 243.36

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

$ 205.96 USD
Free Shipping

Genuine MINI - Corporate Logo
T#:186565
Part#: 13628602086
In Stock
10% off MSRP $ 56.47

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

$ 50.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 56.47

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

$ 50.99 USD
Free Shipping on orders $49 and up
Genuine Mini Temperature Sensor
Fits BMW Engines including:
N16,N18


Genuine MINI - Corporate Logo
T#:174393
Part#: 13628603908
Ships in 4 Business Days
$ 37.61 USD
Free Shipping on orders $49 and up
Genuine MINI TEMPERATURE SENSOR, COOLANT
Active Autowerke - Corporate Logo
T#:2302749
Part#: 14-016
Ships in 10 Business Days
$ 141.99 USD
Free Shipping
$ 141.99 USD
Free Shipping
CNC machined coolant/water thermostat bypass tube to improve flow on and off the track. Easy plug and play installation and a durable anodized coating make this a simple and reliable temperature control solution.
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Genuine MINI - Corporate Logo
T#:574394
Part#: 11537534521KT3
In Stock
$ 232.99 USD
Free Shipping
$ 232.99 USD
Free Shipping

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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Genuine MINI - Corporate Logo
T#:557480
Part#: 11538674895KT
In Stock
$ 198.99 USD
Free Shipping
$ 198.99 USD
Free Shipping

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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Genuine MINI - Corporate Logo
T#:178205
Part#: 12518614952
In Stock
5% off MSRP $ 61.99

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

$ 59.00 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 61.99

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

$ 59.00 USD
Free Shipping on orders $49 and up
Genuine MINI THERMOSTAT ADAPTER
Fits BMW Engines including:
N14,N16,N18

Genuine MINI - Corporate Logo
T#:19202
Part#: 11531486703
In Stock
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
Genuine MINI ENGINE RADIATOR CAP
Fits BMW Engines including:
W10