Home
Cooling

BMW Cooling System Parts & Accessories for BMW 6 Series F12 (2012+)

Clear BMW chassis

The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

Sub-Categories

Sort By:

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

Add to Wish List

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.

Show More Show Less

Thermostat Replacement kit - 90C

10X Entries Into Our F80 M3 Sweepstakes

T#:15744051

Part#: 82142209769KT

In Stock

Sale - Save 3% $ 146.99

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

$ 142.74 USD

Add to Wish List

Qty

Sale - Save 3%

$ 146.99

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

$ 142.74 USD

Add to Wish List

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

Add to Wish List

Qty

$ 390.23 USD

Add to Wish List

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.

Thermostat Replacement Kit - F01, F06, F07, F10, F12, F13

10X Entries Into Our F80 M3 Sweepstakes

T#:41289768

Part#: 115376011591TKT

In Stock

$ 179.99

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

$ 178.99 USD

Add to Wish List

Qty

$ 178.99 USD

Add to Wish List

Everything you need to replace your thermostat with a high quality aftermarket unit on your F chassis BMW!

Performance Water Pump & Thermostat Kit - 90*C - S63

10X Entries Into Our F80 M3 Sweepstakes

T#:30397428

Part#: 11537843738KT2

Ships on Nov 2, 2026

$ 579.99

This product was last offered at the strikethrough price on
04-28-2026

$ 549.99 USD

Add to Wish List

Qty

$ 549.99 USD

Add to Wish List

The water pump is a known weak point across all BMW models, requiring servicing every 60,000 miles. Along with the water pump, it’s wise to replace the thermostat to ensure your cooling system operates at peak efficiency.

This kit features a 90°C (194°F) thermostat from Hamburg Technic, which opens approximately 15°C earlier than the standard factory thermostat. This lower temperature is particularly advantageous for performance-focused applications.

What's Included:

Genuine BMW Mechanical Water Pump Assembly (11537843738) Hamburg Technic Performance Thermostat - 90°C/194°F (11537586885) Genuine BMW Coolant/Antifreeze - Diluted, 1 Gallon (82141467704) Benefits of a Lower Thermostat Temperature:

Enhanced Engine Cooling: Opens sooner to reduce engine temperature more effectively. Improved Performance: Keeps engine components cooler, allowing for better performance in high-stress conditions. Extended Engine Life: Reduces thermal stress on engine parts, promoting longevity. Prevents Overheating: Helps to avoid overheating in demanding driving scenarios. Optimized Fuel Efficiency: Maintains ideal engine temperature for efficient fuel combustion. Elevate your BMW's cooling system and performance with this expertly curated kit from Turner Motorsport.

Show More Show Less

OEM Style Hose Clamps

10X Entries Into Our F80 M3 Sweepstakes

T#:338927

Part#: HOSE-CLAMPS

In Stock

Sale - Save 3% $ 3.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 USD

Add to Wish List

Sale - Save 3%

$ 3.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 USD

Add to Wish List

Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.

Show More Show Less

Water Pump And Thermostat Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15777309

Part#: 115176324260-KT

Back Ordered

$ 867.99 USD

Add to Wish List

Qty

$ 867.99 USD

Add to Wish List

The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The OEM kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: OEM thermostat OEM water pump Genuine BMW coolant Mounting hardware

Show More Show Less

Bav Auto Spill-Proof Coolant / Antifreeze Funnel

10X Entries Into Our F80 M3 Sweepstakes

T#:580395

Part#: B8800082

Ships in 8 Business Days

Sale - Save 15% $ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

Add to Wish List

Qty

Sale - Save 15%

$ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

Add to Wish List

Multiple adapters include to fit a variety of vehicles.

OEM INA Water Pump - BMW N54 N55 3.0L

T#:40004835

Part#: 11515A05704

In Stock

$ 445.99 USD

Add to Wish List

Qty

$ 445.99 USD

Add to Wish List

Water pumps are a critical component of your cooling system. A failed water pump will stop the flow of coolant in your vehicle, leading to overheating and eventual engine damage. Replace your faulty or aging water pump with a high-quality OEM unit from Schaeffler. Replacement for BMW part # 11519455978, 11517632426, and 11517563659.

Show More Show Less

Bav Auto Fan Clutch Wrench - 32mm

10X Entries Into Our F80 M3 Sweepstakes

T#:580348

Part#: B8800019

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 29.99

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

$ 23.99 USD

Add to Wish List

Used to remove your fan clutch

Bav Auto Angled Hose Pinch Plier Set - 2pc

10X Entries Into Our F80 M3 Sweepstakes

T#:580379

Part#: B8800058

In Stock

Sale - Save 25% $ 32.99

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

$ 24.74 USD

Add to Wish List

Qty

Sale - Save 25%

$ 32.99

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

$ 24.74 USD

Add to Wish List

Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.

Show More Show Less

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

10X Entries Into Our F80 M3 Sweepstakes

T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 14.99

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

$ 11.99 USD

Add to Wish List

This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

Show More Show Less

INA Water Pump for E60 , E71 and F10

We Price Match - Give Us A Call or Chat!

T#:36574507

Part#: 11517632426

Back Ordered

$ 691.99 USD

Add to Wish List

Qty

$ 691.99 USD

Add to Wish List

This premium replacement water pump is engineered to OE specifications for performance, reliability, and longevity, making it an essential component for maintaining optimal engine temperatures

Select Vehicle

Purpose

Category

Home

Cooling

Brand

View All Brands

Price

Special Offers

Shipping