BMW Thermostats for BMW X Series E84 (2013-2015)

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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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BMW N54 N55 S55 Mosselman Thermostat Installation Kit
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Packaged by Turner - Corporate Logo
T#:4799665
Part#: THERMINSTALLKT
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$ 22.99 USD
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BMW N54 N55 S55 Mosselman Thermostat Installation Kit is designed to ensure a seamless installation of the Mosselman thermostat on BMW engines. This comprehensive kit from Turner Motorsport includes all necessary gaskets and components, guaranteeing a reliable and precise installation for optimal engine performance.

  • Complete Kit: Includes all essential gaskets and components required for a hassle-free thermostat installation.
  • Optimal Performance: Ensures proper installation of the Mosselman thermostat, leading to improved engine cooling efficiency and performance.
  • High-Quality Components: Gaskets and parts are manufactured to meet high standards of durability and reliability.
  • Precision Fit: Engineered to match OEM specifications, providing a perfect fit and reliable performance.
  • Ease of Installation: All necessary parts are included, simplifying the installation process and reducing the need for additional purchases.

Upgrade your BMW's cooling system with the Mosselman Thermostat Installation Kit from Turner Motorsport, ensuring a top-quality, reliable setup for your engine.

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Thermostat Replacement Kit - E82 E9X E84 E70 E71 With N55 Engines ...
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Packaged by Turner - Corporate Logo
T#:554075
Part#: 11537601158KT2
Ships on Jul 7, 2026
Sale - Save 25% $ 106.99

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$ 79.77 USD
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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.

Kit includes

  • Wahler Thermostat
  • 1 liter of Coolant

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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ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L N...
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ECS - Corporate Logo
T#:556105
Part#: 024797ECS01
In Stock
Sale - Save 25% $ 74.99

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

$ 56.24 USD
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Sale - Save 25%
$ 74.99

This product was last offered at the strikethrough price on
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$ 56.24 USD
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Some of the biggest issues when owning a BMW can come from cooling system components. Even through years of improvement, the same failure is seen with the plastic fittings and adapters from years of hot to cold temperature fluctuation. The N52/N54/N55/N20 engine sees failure at the plastic cylinder head outlet adapter connecting the cylinder head to the thermostat hose. The stock plastic adapter simply shears off at the end of the barbed fitting, creating a massive coolant leak. The engineering team at ECS Tuning decided a billet aluminum piece was a much better option to contend with the temperature fluctuation. Since other offerings on the market want you to modify your OE hose to be reused, they even developed a silicone replacement hose. These 2 pieces can be purchased separately if you decide to reuse your existing OE hose or in a package kit together for a single click upgrade. Features: Manufactured from billet 6061-T6 with type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic ​​Will not become brittle and fatigued over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Follows OEM form for perfect fitment. Utilizes (and includes) OEM O-ring 11537545278 to ensure a proper seal. Recommended clamp size is 25-40mm
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ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54...
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ECS - Corporate Logo
T#:640062
Part#: 008286LA01
In Stock
Sale - Save 35% $ 103.99

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

$ 67.59 USD
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Sale - Save 35%
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This product was last offered at the strikethrough price on
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$ 67.59 USD
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When it comes to cooling system hose replacement, the "U" shaped hose connecting the water pump to the thermostat is usually the first to fail. A lot of this comes from its close proximity to the hot downpipes, while some of this failure comes from the sharp bends in the hose. 

Why not upgrade when you're due for a replacement? The ECS Tuning silicone hose replacement fixes these issue with two key features in their design. Offering this hose in a much more heat resistant silicone instead of OE rubber and having the hose wrapped in aluminum. The aluminum coating acts as a heat shield to further protect the silicone as well as reducing the temperatures forced on the coolant running through the hose. 

Replaces OE hose #11537545665

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Thermostat With Aluminum Housing - N20
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Bremmen Parts - Corporate Logo
T#:30828065
Part#: 11538635689M
In Stock
Sale - Save 20% $ 125.99

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$ 100.36 USD
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Aluminized Silicone Water Pump Hose - with clamps
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ECS - Corporate Logo
T#:568837
Part#: 020414ECS01KT
In Stock
Sale - Save 40% $ 110.99

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$ 66.59 USD
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BMW N20 2.0L Thermostat With Housing
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Bavarian Autosport - Corporate Logo
T#:18003828
Part#: 11538635689
In Stock
Sale - Save 20% $ 67.99

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$ 54.39 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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OEM Wahler Thermostat - E82 E9X E84 E70 E71 with N55 engines ...
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Wahler - Corporate Logo
T#:14602
Part#: 11537601158
In Stock
$ 121.98 USD
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$ 121.98 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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Mahle-Behr Thermostat With Housing - E84, F10, F22, F26, F30, F31, F3...
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Mahle-Behr - Corporate Logo
T#:363991
Part#: 11537633476
In Stock
$ 104.99 USD
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$ 104.99 USD
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No heat? Overheating? Time for a cooling system service.

Thermostat
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Bremmen Parts - Corporate Logo
T#:26538316
Part#: 11537601158
Ships on Jul 7, 2026
Sale - Save 20% $ 95.99

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

$ 76.70 USD
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$ 95.99

This product was last offered at the strikethrough price on
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$ 76.70 USD
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Mishimoto 74 Degree Performance Thermostat - N52 N54 N55
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Mishimoto - Corporate Logo
T#:363461
Part#: MMTS-E90-07
In Stock
$ 83.99 USD
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$ 83.99 USD
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The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.   

Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.  

For vehicles with plastic thermostat housing 

  

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Genuine BMW Thermostat With Housing - N20
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Genuine BMW - Corporate Logo
T#:367096
Part#: 11538635689
In Stock
11% off MSRP $ 155.99

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

$ 138.99 USD
Limited Qty Sale
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11% off MSRP
$ 155.99

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

$ 138.99 USD
Limited Qty Sale
Free Shipping

N20 thermostats are prone to failure - replace yours today with a Genuine BMW replacement.

Turner Motorsport is proud to be your source for Genuine BMW parts.

 



Thermostat - E82 E9X E84 E70 E71 with N55 engines
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Genuine BMW - Corporate Logo
T#:360235
Part#: 11537601158
In Stock
12% off MSRP $ 325.99

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

$ 286.99 USD
Free Shipping
12% off MSRP
$ 325.99

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

$ 286.99 USD
Free Shipping
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).

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.

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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URO Parts Thermostat Assembly - 11537601158
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URO - Corporate Logo
T#:29466802
Part#: 11537601158
Ships in 1 Business Day
$ 78.00 USD
Free Shipping on orders $49 and up

If your vehicle is struggling with cooling problems, the thermostat might be to blame. Symptoms such as extended warm-up times on the highway due to a thermostat stuck open or persistent overheating from a thermostat stuck closed can significantly impact performance and damage critical engine components.

Fortunately, URO Parts provides an exceptional replacement solution. Their high-quality thermostat is designed to match the functionality of the original factory unit, ensuring your vehicle operates at the correct temperature once again.

Key Features:

Guaranteed Fit: Designed for perfect compatibility, ensuring a hassle-free installation. Efficient Cooling: OE-style high-flow design promotes optimal engine cooling performance. Easy Installation: The thermostat housing assembly matches factory dimensions for quick bolt-on installation and secure hose connections. Comprehensive Compatibility: Includes ports for temperature sensors where necessary. Durable Construction: Made from high-quality alloy or composite materials that resist warping and cracking, preventing coolant leaks. URO Parts offers an extensive range of over 8,000 premium spare parts, specializing in replacements for factory BMW components. Their commitment to excellence is reflected in their meticulous manufacturing standards, focusing on precision, durability, and value. For reliable and affordable replacement parts, trust URO Parts to keep your vehicle running smoothly.

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Low Temperature Thermostat - 97C
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Bremmen Parts - Corporate Logo
T#:33612901
Part#: 11537601158-97C
In Stock
Sale - Save 20% $ 95.99

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

$ 76.70 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 95.99

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

$ 76.70 USD
Free Shipping on orders $49 and up

Thermostat
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Gates - Corporate Logo
T#:393494
Part#: 11537601158
Ships on Jun 23, 2026
$ 108.99 USD
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BMW Thermostat
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Febi - Corporate Logo
T#:16242199
Part#: 11537601158
Special Order: No Guaranteed ETA
$ 209.99 USD
$ 209.99 USD
Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33...
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Meyle - Corporate Logo
T#:5704976
Part#: 11538635689
Special Order: No Guaranteed ETA
$ 72.99 USD
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When it comes to your temperature gauge on your instrument cluster your thermostat plays a large role in where that temperature needle ends up. There are many cases where the vehicle will run a bit cool according to that gauge, oftentimes meaning the thermostat has failed and is stuck open allowing coolant to continuously circulate. The other more damaging side is when it closes shut and keeps the engine from cooling down properly. All vehicles are designed to operate in an ideal temperature range for the ultimate efficiency, life, and performance.
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