BMW Cooling System Parts & Accessories for BMW X Series F25 (2011+)

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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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Packaged by Turner - Corporate Logo
T#:554075
Part#: 11537601158KT2
In Stock
Sale - Save 26% $ 104.99
$ 78.21 USD
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Sale - Save 26% $ 104.99
$ 78.21 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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Packaged by Turner - Corporate Logo
T#:30430672
Part#: 11537586784KT2
Ships in 6 Business Days
$ 723.99 USD
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Maintain your BMW's cooling system and avoid costly repairs with our all-inclusive Water Pump and Thermostat Replacement Kit, expertly crafted by enthusiasts at Turner Motorsport. Designed specifically for your BMW model, this kit ensures proper engine operation at optimal temperatures, preventing overheating and extending engine life.

Key Benefits:

Comprehensive Kit: Simplify your cooling system overhaul with all necessary components in one package. High-Quality Parts: Each component meets or exceeds OEM standards, ensuring reliable performance and longevity. Optimal Cooling Performance: Regular water pump and thermostat replacement every 60,000 miles maintains peak cooling efficiency. Enhanced Reliability: Premium components like the Wahler Thermostat and Graf Water Pump ensure durable, long-lasting performance. Why Choose This Kit:

Maximize Cooling System Performance: Replacing your water pump and thermostat simultaneously ensures your BMW’s cooling system operates efficiently. Protect Your Engine: Properly flushing and refilling your cooling system with Genuine BMW coolant guarantees optimal freeze protection and corrosion resistance. Convenient and Cost-Effective: Combining all essential parts in one kit simplifies maintenance and ensures a thorough, lasting repair. Planning a cooling system overhaul? Opt for this comprehensive thermostat and water pump replacement kit for a lasting repair.

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Packaged by Turner - Corporate Logo
T#:337985
Part#: 11517632426
In Stock
Sale - Save 5% $ 614.99
Starting at $ 584.12 USD
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Sale - Save 5% $ 614.99
Starting at $ 584.12 USD
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The N54/N55's water pump is central to the car's cooling system as well as to the performance and fuel economy. BMW's engine efficiency design for these cars includes the water pump for balancing engine power output and efficiency and cooling responsibilities not only for the engine but also for the turbo(s) and transmission cooling. It's a very integral part of the engine. The N54/N55 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 the N52. The cooling demands mean additional stress on the major cooling components, especially the water pump.

The N54/N55 water pump is electrically driven and varies output based on instructions from the engine computer. Under the best circumstances the pump drives only as much coolant as needed and will shut down or activate as load and performance demands change (combustion chamber temperatures are dynamically changed based on economy, normal, and performance demands). The pump can also run when the car is off to reduce heat soak in the engine and turbo(s). The water pump is now a factor in how much power and fuel economy your car is producing, making it all the more critical to replace during normal maintenance. If a fault or excessive temperature is reached, the dash cluster will display a yellow or red water temp icon depending on the severity of the condition. The car's electronics will begin shutting down various systems in the car to divert more resources to the cooling system. This can include reducing power output and activating 'limp mode'.

The best way to avoid problems and system failures? Preventative maintenance and overhaul of the cooling system, starting with the water pump (and thermostat).

This OEM VDO water pump is the latest design and replaces part number 11 51 7 563 659 (11517563659). It fits all cars with the N54 or N55 engine. Replacement of the aluminum mounting screws is required when changing the water pump (select from the options below). Proper bleeding procedures specific to the electric water pump should also be followed.

This item fits the following BMWs:
2008+ E82 BMW 135i 1M Coupe
2007+ E90 BMW 335i 335xi 335i xDrive - Sedan
2007+ E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007+ E93 BMW 335i - Convertible
2007-2010 E60 BMW 535i 535xi 535i xDrive
2010+ F07 BMW 535i GT, 535i xDrive GT
2011+ F10 BMW 535i 535i xDrive
2011+ F13 BMW 640i Coupe, 640i Convertible
2009+ F01 BMW 740i 740li
2011+ F25 BMW X3 35iX
2010+ E70 BMW X5 35iX
2007-2014 E71 BMW X6 xDrive35i
2009+ Z4 BMW Z4 sDrive35i Z4 sDrive35is
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Packaged by Turner - Corporate Logo
T#:554053
Part#: 11517604027KT1
Ships on Aug 11, 2025
$ 422.99 USD
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$ 422.99 USD
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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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Packaged by Turner - Corporate Logo
T#:4799665
Part#: THERMINSTALLKT
In Stock
$ 19.99 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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OEM Style Hose Clamps
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
Sale - Save 10% $ 3.99
Starting at $ 3.59 USD
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Sale - Save 10% $ 3.99
Starting at $ 3.59 USD
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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.
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Precision Raceworks - Corporate Logo
T#:38094360
Part#: 601-0003
In Stock
New Item
$ 24.99 USD
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The Black Market Parts (by Precision Raceworks) BMW Billet Coolant Flange was designed as a replacement for the factory plastic flange that is found in the hose that connects the thermostat to the cylinder head. The plastic flange commonly cracks, which leads to coolant loss and engine overheating. Replace your coolant flange before disaster occurs and leaves you stuck on the side of the road.
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BMW Black Engine Coolant Reservoir Cap
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Precision Raceworks - Corporate Logo
T#:38161688
Part#: 201-0393-BLK
Ships Jul 11, 2025
New Item
$ 115.99 USD
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BMW Black Engine Coolant Reservoir Cap is a premium upgrade designed to enhance both the functionality and aesthetics of your BMW’s engine bay. Unlike flimsy plastic OEM caps, this high-performance cap is CNC-machined from durable billet aluminum, providing long-lasting strength and a sleek, motorsport-inspired look.

Built with precision, this cap retains the essential OEM pressure release function, ensuring proper cooling system operation without compromise. Unlike inferior adhesive covers that may detach over time, this cap fully replaces the factory component, delivering a secure and reliable fit. With a corrosion-resistant black anodized finish, it withstands extreme temperatures and harsh conditions while elevating your BMW’s under-hood appearance.

  • OEM pressure regulation – Maintains factory-designed pressure release for optimal cooling performance
  • CNC-machined billet aluminum – Provides exceptional durability and long-term reliability
  • Direct replacement – Fully replaces the stock cap, ensuring a perfect fit without modifications
  • Corrosion-resistant anodized finish – Prevents wear and adds a stealthy, high-performance look
  • Heat and fluid-resistant design – Built to withstand extreme temperatures and coolant exposure
  • Enhanced engine bay styling – Offers a sleek, motorsport-inspired upgrade

Upgrade your BMW’s cooling system with the BMW Black Engine Coolant Reservoir Cap, designed for superior performance and long-lasting durability.

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BMW Blue Engine Coolant Reservoir Cap
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Precision Raceworks - Corporate Logo
T#:38161689
Part#: 201-0393-BLU
Ships Jul 2, 2025
New Item
$ 115.99 USD
Free Shipping on orders $49 and up

BMW Blue Engine Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Constructed from high-quality billet aluminum, this cap replaces the flimsy plastic factory cap, offering improved durability and a sleek, high-performance aesthetic.

Designed with precision, this coolant reservoir cap incorporates the OEM pressure relief function to maintain proper cooling system operation. Unlike inferior stick-on covers that may loosen over time, this cap is a complete replacement, ensuring a secure, leak-free fit. The blue anodized finish provides superior corrosion resistance, making it a reliable upgrade for daily drivers and track enthusiasts alike.

  • OEM pressure relief function – Ensures proper cooling system performance and safety
  • Billet aluminum construction – Provides enhanced durability and strength over factory plastic caps
  • Direct-fit replacement – Fully replaces the stock cap for a precise, secure fit
  • Blue anodized finish – Resists corrosion, heat, and wear for long-lasting performance
  • Motorsport-inspired design – Adds a sleek, professional look to the engine bay
  • Built for longevity – Engineered to withstand extreme temperatures and coolant exposure

Upgrade your BMW’s cooling system with the BMW Blue Engine Coolant Reservoir Cap, designed for superior reliability and style.

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BMW Silver Engine Coolant Reservoir Cap
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Precision Raceworks - Corporate Logo
T#:38161691
Part#: 201-0393-SIL
Ships Jul 11, 2025
New Item
$ 115.99 USD
Free Shipping on orders $49 and up

BMW Silver Engine Coolant Reservoir Cap is a premium upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Crafted from high-strength billet aluminum, this cap replaces the factory plastic version, offering superior durability and a refined, professional look.

Designed with functionality in mind, it integrates the OEM pressure relief system to ensure your engine's cooling system remains safe and efficient. Unlike adhesive covers, which can peel or wear over time, this cap is a direct-fit replacement, providing a secure and leak-proof seal. The silver anodized finish not only enhances the visual appeal but also ensures resistance to corrosion, high temperatures, and wear, making it perfect for daily driving and track use.

  • OEM pressure relief integration – Maintains proper cooling system performance and reliability
  • Durable billet aluminum – Outperforms factory plastic caps in longevity and strength
  • Precision-machined for perfect fitment – Replaces the stock cap securely, not just a cover
  • Anodized silver finish – Offers corrosion, heat, and wear resistance
  • Elevates engine bay aesthetics – Adds a clean, professional appearance
  • Built for both street and track use – Designed to withstand extreme conditions

Enhance your BMW’s cooling system with the BMW Silver Engine Coolant Reservoir Cap, providing both style and functionality for years to come.

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