Home
Cooling

BMW Cooling System Parts & Accessories for BMW X Series F15 (2014+)

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

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 - E82 E9X E84 E70 E71 With N55 Engines ...

T#:554075

Part#: 11537601158KT2

In Stock

Sale - Save 24% $ 106.99

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

$ 81.44 USD

Add to Wish List

Qty

Sale - Save 24%

$ 106.99

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

$ 81.44 USD

Add to Wish List

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

Show More Show Less

Turbo Coolant Line Kit - F70, E71, F15, F16

T#:41661213

Part#: 11537577014TKT

Ships in 4 Business Days

Sale - Save 8% $ 342.99

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

$ 316.08 USD

Add to Wish List

Qty

Sale - Save 8%

$ 342.99

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

$ 316.08 USD

Add to Wish List

OEM Water Pump And Thermostat Kit - BMW N55 3.0L (With M Sports Pack...

T#:557276

Part#: N55WTKT2

Ships on Nov 27, 2026

Sale - Save 4% $ 865.99

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

$ 829.18 USD

Add to Wish List

Qty

Sale - Save 4%

$ 865.99

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

$ 829.18 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. This kit provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.

Kit includes:

Genuine BMW Thermostat
OEM VDO Electric Water Pump
Genuine BMW Auxiliary Water Pump
Genuine BMW Antifreeze/Coolant
OEM Mounting hardware required for both the thermostat and water pump

Show More Show Less

Water Pump And Thermostat Kit - BMW N55 3.0L (Without M Sport Packag...

T#:557261

Part#: N55WTKT

Ships on Nov 27, 2026

Sale - Save 10% $ 531.99

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

$ 476.66 USD

Add to Wish List

Qty

Sale - Save 10%

$ 531.99

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

$ 476.66 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. This kit provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.

Kit includes:

Genuine BMW Thermostat
OEM Pierburg Electric Water Pump
Genuine BMW Antifreeze/Coolant
OEM Mounting hardware required for both the thermostat and water pump

Show More Show Less

Thermostat Installation Kit with Thermostat - N54, N55, S55

T#:55353595

Part#: OTN54.T85KT3

Ships in 1-3 days

$ 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.

Bav Auto Spill-Proof Coolant / Antifreeze Funnel

T#:580395

Part#: B8800082

In Stock

Sale - Save 15% $ 32.99

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

$ 28.04 USD

Add to Wish List

Qty

Sale - Save 15%

$ 32.99

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

$ 28.04 USD

Add to Wish List

Multiple adapters include to fit a variety of vehicles.

Bav Auto Fan Clutch Wrench - 32mm

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

Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

T#:580397

Part#: B8800084

In Stock

Sale - Save 15% $ 146.99

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

$ 124.94 USD

Add to Wish List

Qty

Sale - Save 15%

$ 146.99

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

$ 124.94 USD

Add to Wish List

Water Heater Control Valve

T#:3018052

Part#: 64116910544

In Stock

Sale - Save 20% $ 85.99

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

$ 68.54 USD

Add to Wish List

Qty

Sale - Save 20%

$ 85.99

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

$ 68.54 USD

Add to Wish List

Keep your HVAC system running properly with a new Water Heater Control Valve.

Bav Auto Angled Hose Pinch Plier Set - 2pc

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

Coolant Expansion Tank Cap

T#:36032339

Part#: 17117639020

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

Bremmen Water Pump Bolt - M8x34 - BMW N20 2.0L

T#:36913363

Part#: 11517602125

In Stock

Sale - Save 35% $ 4.99

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

$ 3.26 USD

Add to Wish List

Qty

Sale - Save 35%

$ 4.99

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

$ 3.26 USD

Add to Wish List

This external torx head screw is a direct replacement for the costly OEM screw, which must be replaced during every water pump service.

Quantity 3 required for complete replacement.

Bremmen Lower Radiator Coolant Hose - E70 E71 F15 F16 N63

T#:50381401

Part#: 17127576358

Ships in 1 day

Sale - Save 3% $ 85.67

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

$ 83.10 USD

Add to Wish List

Qty

Sale - Save 3%

$ 85.67

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

$ 83.10 USD

Add to Wish List

Connects the lower radiator to the water pump Replace leaking hoses to prevent coolant loss and overheating

Vent Hose

T#:39295552

Part#: 17127576363

Special Order: No Guaranteed ETA

Sale - Save 21% $ 27.99

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

$ 22.02 USD

Add to Wish List

Qty

Sale - Save 21%

$ 27.99

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

$ 22.02 USD

Add to Wish List

Select Vehicle

Purpose

Category

Home

Cooling

Brand

Price

Special Offers

Shipping