BMW Thermostats for BMW 3 Series F34 (2014+)

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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

10X Entries Into Our F80 M3 Sweepstakes

T#:4799665

Part#: THERMINSTALLKT

In Stock

Sale - Save 6% $ 22.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.64 USD

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Qty

Sale - Save 6%

$ 22.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.64 USD

Add to Wish List

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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Water Pump & Thermostat Kit - Gen 1 B46 2.0L

10X Entries Into Our F80 M3 Sweepstakes

T#:35863149

Part#: 11518638026TKT

In Stock

Sale - Save 5% $ 740.99

This product was last offered at the strikethrough price on
09-09-2026

$ 705.38 USD

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Qty

Sale - Save 5%

$ 740.99

This product was last offered at the strikethrough price on
09-09-2026

$ 705.38 USD

Add to Wish List

BMW's cooling system has long been a known weak spot, with the water pump and thermostat being two of the most common trouble areas. This remains true even in the latest B-Series engines found in 2016 and newer BMW models. This kit includes a brand-new OEM Pierburg water pump, a Bremmen thermostat (now referred to as a Heat Management Module), and one gallon of BMW's G48 coolant concentrate (enough to make two gallons of 50/50 coolant). Avoid spending thousands at the dealership or over $600 on Genuine BMW parts! These components can be replaced with high-quality OEM parts in just an afternoon using basic hand tools.

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Thermostat Installation Kit with Thermostat - N54, N55, S55

10X Entries Into Our F80 M3 Sweepstakes

T#:55353595

Part#: OTN54.T85KT3

In Stock

$ 390.23 USD

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$ 390.23 USD

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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.

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BMW Thermostats for BMW 3 Series F34 (2014+)

BMW N54 N55 S55 Mosselman Thermostat Installation Kit

Water Pump & Thermostat Kit - Gen 1 B46 2.0L

Thermostat Installation Kit with Thermostat - N54, N55, S55

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