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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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Wahler - Corporate Logo
T#:360524
Part#: 11531318274
In Stock
$ 105.99

This product was last offered at the strikethrough price on
06-25-2026

$ 70.99 USD
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$ 70.99 USD
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Replacement 80* Celcius thermostat for E46 M3, Z3M w S54 engine, Z4M. The thermostat can be replaced on the E46 M3 without removing the water pump. This can save you money if the pump still has life left on it but the thermostat needs to be done now. Symptoms of a bad thermostat include an erratic temp gauge and a fault code. When replacing the thermostat, there are three o-rings that will likely need to be replaced between the thermostat and the water pump housing, and two on the coolant tube going to the head. We also recommend new hoses, clamps, and BMW coolant. Replacement should take about one hour.
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Advanced Auto Fabrication - Corporate Logo
T#:7624632
Part#: 116211.2
Ships in 1 Business Day
$ 85.00 USD
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$ 85.00 USD
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BMW E46 M54 AAF Low Temp Thermostat Kit - Partial is an essential upgrade for enthusiasts looking to optimize engine performance and reliability. Developed by Advanced Auto Fabrication (AAF), this kit addresses the limitations of the factory M54 thermostat, which maintains a temperature range of 80-103°C and opens the mechanical failsafe at 110°C. For race conditions where maintaining a lower temperature is crucial, this kit replaces the stock electronic thermostat with a manual unit, allowing the engine to run at a safer and more efficient temperature. This upgrade not only enhances engine longevity but also reduces stress from high-temperature operation, minimizes heat soak, and increases power.

  • Optimal Temperature Control: Replaces the factory thermostat for improved engine temperature management.
  • Enhanced Engine Longevity: Operates at safer temperatures, reducing stress and extending engine life.
  • Increased Power: Lower operating temperatures can lead to better engine performance.
  • Reduced Heat Soak: Helps prevent overheating and ensures efficient cooling.
  • Improved Reliability: Manual thermostat unit offers more consistent performance in racing conditions.

Partial Kit Contents:

  • Thermostat housing plate
  • Thermostat
  • Installation hardware
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Wahler - Corporate Logo
T#:360363
Part#: 11537549476
In Stock
Sale - Save 7% $ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD
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Sale - Save 7%
$ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD
Free Shipping
If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include a 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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BMW N55 3.0L Thermostat Assembly
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:637725
Part#: 11537598865
In Stock
$ 83.42 USD
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$ 83.42 USD
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BMW N55 3.0L Thermostat Assembly is an essential component for maintaining optimal engine temperature in your BMW, ensuring reliable performance and longevity. A common source of cracks and leaks, the thermostat assembly plays a critical role in regulating coolant flow. This high-quality replacement from Turner Motorsport is designed to meet or exceed OEM standards, providing a dependable solution to prevent overheating and maintain your engine's efficiency.

  • Reliable Temperature Regulation: Ensures optimal engine temperature for peak performance.
  • High-Quality Replacement: Meets or exceeds OEM standards, reducing the risk of cracks and leaks.
  • Enhanced Durability: Designed to withstand the demands of the N55 3.0L engine.
  • Prevents Overheating: Critical for maintaining engine efficiency and longevity.
  • Perfect Fit: Engineered for easy installation and compatibility with your BMW N55 3.0L engine.
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Advanced Auto Fabrication - Corporate Logo
T#:7624630
Part#: 116211
In Stock at Vendor
$ 175.00 USD
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$ 175.00 USD
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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The factory M54 thermostat is electronically controlled to keep the engine running between 80-103°C, whereas race cars like to maintain 80°C or less for maximum power. Additionally, the mechanical failsafe doesn’t open up until the coolant temperature reaches 110°C, or 230°F, which is about the point when most race cars are turned off and parked which is no good for the motor! The AAF E46 M54 Low Temp Thermostat Kit is designed to give the control of proper engine operating temperature back by replacing the stock electronic thermostat with a manual unit. This allows the engine to run at the proper, and much safer, operating temperature, improving engine longevity, reduces stress from high-temp. operation, reduces heat soak, and increases power! Full Kit Contents: Thermostat housing Thermostat housing plate Thermostat install hardware sealant
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Wahler - Corporate Logo
T#:14602
Part#: 11537601158
In Stock
$ 121.98

This product was last offered at the strikethrough price on
07-27-2026

$ 109.52 USD
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$ 109.52 USD
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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N55 6 cylinder engines and is an Wahler part. The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

Manufacturing OE-grade replacement cooling parts is Wahler’s specialty. When you need to replace a component in your vehicle’s water system, high grade, and long-lasting parts from Wahler ensure the job is done properly the first time.

This item fits the following BMWs:
2008-2013 E82 BMW 135i 135is 1M Coupe
2013+ E84 BMW X1 xDrive35i
2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i Convertible
2011-2013 E70 BMW X5 xDrive35i
2011-2013 E71 BMW X6 xDrive35i
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Wahler - Corporate Logo
T#:374361
Part#: N524TSTKT1
In Stock
$ 112.99

This product was last offered at the strikethrough price on
03-26-2026

$ 111.99 USD
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$ 111.99 USD
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Wahler - Corporate Logo
T#:1211191
Part#: 11518601366
In Stock
$ 65.99 USD
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$ 65.99 USD
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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
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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#: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
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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
Wahler - Corporate Logo
T#:362194
Part#: 11537550172
Ships in 1 Business Day
$ 110.65 USD
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$ 110.65 USD
Free Shipping
Replaces failed thermostat or as preventative maintenance for your cooling system
Active Autowerke - Corporate Logo
T#:2302749
Part#: 14-016
Ships in 10 Business Days
$ 141.99 USD
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$ 141.99 USD
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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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Wahler - Corporate Logo
T#:375968
Part#: 13541730682
Back Ordered
$ 66.99 USD
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$ 66.99 USD
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Thermostat that controls water flow temperature to the throttle body
Genuine MINI - Corporate Logo
T#:574394
Part#: 11537534521KT3
In Stock
$ 232.99 USD
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$ 232.99 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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Genuine MINI - Corporate Logo
T#:557480
Part#: 11538674895KT
In Stock
$ 198.99 USD
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$ 198.99 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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URO Thermostat Housing W/ Thermostat Kit - Priced As Kit
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:401817
Part#: 11537534521
Ships in 1 Business Day
$ 99.99

This product was last offered at the strikethrough price on
05-07-2026

$ 85.99 USD
Free Shipping
$ 85.99 USD
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The thermostat neck/housing, often referred to as the highest point on the head, serves a vital function in controlling the flow of coolant back to the pressure tank. If you've noticed symptoms like cracking around the gasket seal or leaks, it's a clear indication that this component is in need of replacement.

This comprehensive kit covers all your replacement needs, featuring:

  • Profile gasket
  • Temperature sensor
  • Two O-rings
  • Clip
  • Bleeder screw

Ensure your vehicle's cooling system operates flawlessly with this Thermostat Neck/Housing Replacement Kit.

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Thermostat
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:637726
Part#: 11538671517
Ships in 1 Business Day
$ 35.99 USD
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$ 35.99 USD
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