Packaged by Turner BMW Cooling System Parts & Accessories for BMW 4 Series F36 (2015+)

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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.

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Water Pump And Thermostat Kit - BMW N55 F Chassis
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T#:39093005
Part#: 11518635090KT6
Ships on Jun 30, 2026
Sale - Save 8% $ 470.99

This product was last offered at the strikethrough price on
06-03-2026

$ 432.90 USD
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Sale - Save 8%
$ 470.99

This product was last offered at the strikethrough price on
06-03-2026

$ 432.90 USD
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Water Pump And Thermostat Kit - BMW N55 F Chassis

Ensure optimal engine cooling and performance with this high-quality Water Pump And Thermostat Kit - BMW N55 F Chassis. In the mid-2000s, BMW introduced electronically controlled water pumps and thermostats for better temperature regulation and efficiency. However, these components tend to have a shorter lifespan compared to traditional mechanical designs, often failing before BMW’s recommended 80,000-mile service interval.

This complete kit from Turner Motorsport includes premium-quality components that match OEM specifications, providing reliable and efficient cooling system performance. Maintaining a properly functioning cooling system helps prevent overheating, enhances efficiency, and extends engine life.

Signs Your Water Pump and Thermostat May Need Replacement:

  • Engine overheating or failing to reach operating temperature
  • Water pump running intermittently or erratically
  • Cooling fans operating at maximum output
  • Engine fault codes, including 20A804

Upgrade your BMW N55 F Chassis cooling system with this all-in-one kit for worry-free performance and longevity.

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BMW N54 N55 S55 Mosselman Thermostat Installation Kit
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T#:4799665
Part#: THERMINSTALLKT
In Stock
$ 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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Water Pump And Thermostat Kit - N20
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T#:554053
Part#: 11517604027KT1
In Stock
Sale - Save 25% $ 461.99

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

$ 344.41 USD
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Sale - Save 25%
$ 461.99

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

$ 344.41 USD
Free Shipping

The N20/n26 engined cars already suffer from reduced cooling area because of the factory intercooler, tight space under the hood, and of course heat from the turbo(s). BMW addressed these challenges a number of ways, including a dynamic, 'smart' electric water pump with increased output compared to normally aspirated models. The cooling demands mean additional stress on the major cooling components, especially the water pump and thermostat. 
 

Kit includes:

  • Mahle-Behr thermostat
  • Pierburg water pump
  • Genuine BMW coolant
  • Mounting hardware required for both the thermostat and water pump

 

This item fits the following BMWs: 
2014+ F22 BMW 228i 228i xDrive 
2014+ F23 BMW 228i 228i xDrive 
2012+ F30 BMW 328i 328i xDrive - Sedan 
2013+ F31 BMW 328i xDrive - Wagon 
2013+ F32 BMW 428i 428i xDrive - Coupe 
2013+ F33 BMW 428i Convertible 428i xDrive Convertible - Convertible 
2014+ F34 BMW 328i xDrive GT - Gran Tourismo 
2014+ F36 BMW 428i Gran Coupe 428i xDrive Gran Coupe 
2012+ F10 BMW 528i 528i xDrive 
2011+ F25 BMW X3 xDrive28i 
2015+ F26 BMW X4 xDrive28i 
2009+ E89 BMW Z4 sDrive28i

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

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

$ 79.77 USD
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Sale - Save 25%
$ 106.99

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

$ 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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Water Pump & Thermostat Kit - Gen 1 B46 2.0L
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T#:35863149
Part#: 11518638026TKT
Ships on Jul 29, 2026
$ 681.66 USD
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$ 681.66 USD
Free Shipping on orders $49 and up
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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Gen1 B58 Water Pump Replacement Kit - BMW F22/23 F3X B58 3.0L ...
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T#:27871814
Part#: 11518632585TKT
Ships on Sep 4, 2026
Sale - Save 3% $ 156.99

This product was last offered at the strikethrough price on
01-31-2026

$ 152.79 USD
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Sale - Save 3%
$ 156.99

This product was last offered at the strikethrough price on
01-31-2026

$ 152.79 USD
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If your water pump is leaking coolant, there is a good chance one of the seals has failed. This is especially common when your coolant level gets too low and your BMW's water pump runs without coolant. The water pump shaft seal can fail as it gets too hot and you will begin to notice coolant dripping from the weep hole found at the bottom of your pump. We recommend replacing the whole pump to ensure your BMW stays cool for many more years! This kit includes the basic parts necessary to replace your water pump: GEBA Mechanical Pump with an upgraded metal impeller Elring Water Pump Gasket Genuine BMW Water Pump Bolts (x6) Don't forget to pick up a gallon of BMW coolant as well to top your system back off once you have completed your pump installation! Servicing your accessory belt and tensioner is also great to do at this time as the belt must be removed before replacing your pump.
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OEM Coolant Expansion Tanks Kit - F22/23 F3X B48 B58
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Packaged by Turner - Corporate Logo
T#:27605427
Part#: 17138677649TKT
In Stock at Vendor
Sale - Save 8% $ 208.99

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

$ 193.10 USD
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Sale - Save 8%
$ 208.99

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

$ 193.10 USD
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Genuine BMW expansion tanks have a bad habit of failing after a few years. This has primarily been caused by the plastic construction of the expansion tanks. After enough heat cycles, the plastic becomes brittle and can crack, causing coolant to leak out and air to enter the coolant system. If a failing expansion tank is not addressed soon enough, the coolant loss can lead to an overheating engine. This kit includes two brand new high quality expansion tanks and caps
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OEM Water Pump And Thermostat Kit - BMW N55 3.0L (With M Sports Pack...
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Packaged by Turner - Corporate Logo
T#:557276
Part#: N55WTKT2
Ships on Oct 14, 2026
Sale - Save 4% $ 865.99

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

$ 829.07 USD
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Sale - Save 4%
$ 865.99

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

$ 829.07 USD
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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
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Water Pump And Thermostat Kit - BMW N55 3.0L (Without M Sport Packag...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:557261
Part#: N55WTKT
Ships on Oct 14, 2026
Sale - Save 10% $ 531.99

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

$ 476.56 USD
Free Shipping
Sale - Save 10%
$ 531.99

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

$ 476.56 USD
Free Shipping

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
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