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

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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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BMW N54 N55 S55 Mosselman Thermostat Installation Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
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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Sale - Save 6%
$ 22.99

This product was last offered at the strikethrough price on
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$ 21.64 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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Thermostat Replacement kit - 90C
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
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
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Sale - Save 3%
$ 146.99

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

$ 142.74 USD
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Packaged by Turner - Corporate Logo
T#:554075
Part#: 11537601158KT2
In Stock
Sale - Save 24% $ 106.99

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

$ 81.42 USD
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Sale - Save 24%
$ 106.99

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

$ 81.42 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#:554065
Part#: 11517548263KT3
In Stock
Sale - Save 31% $ 336.99

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

$ 232.61 USD
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Sale - Save 31%
$ 336.99

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

$ 232.61 USD
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The water pumps in BMW's should be serviced near 80,000 miles and may become an issue often times leaving the owner stranded. The aftermarket 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:

  • Thermostat
  • Water pump
  • Coolant

 

This item fits the following BMW Engines: 
N63,N63N,S63,N62N 

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Pierburg Full Aluminum Water Pump With Hardware
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:6091465
Part#: 11515A05704APKT
Back Ordered
Sale - Save 1% $ 532.99

This product was last offered at the strikethrough price on
05-30-2026

$ 526.79 USD
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Sale - Save 1%
$ 532.99

This product was last offered at the strikethrough price on
05-30-2026

$ 526.79 USD
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If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. The main downside to an electric water pump is you may also notice nothing - nothing but overheating! Keep your eyes peeled for warning signs it may be time to replace your water pump. N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. Comes with electric water pump and installation hardware. Aluminum mounting bolts are one time use. Replace every time the water pump is removed.
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Packaged by Turner - Corporate Logo
T#:55353595
Part#: OTN54.T85KT3
In Stock
New Item
$ 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.

Thermostat Replacement Kit - F01, F06, F07, F10, F12, F13
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:41289768
Part#: 115376011591TKT
In Stock
$ 179.99

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

$ 178.99 USD
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$ 178.99 USD
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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
Packaged by Turner - Corporate Logo
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
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$ 549.99 USD
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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.

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Water Pump And Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777309
Part#: 115176324260-KT
Back Ordered
$ 867.99 USD
Free Shipping on orders $49 and up
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
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Vent Hose Assembly
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:18468306
Part#: 17127576363
Ships in 1 Business Day
$ 29.99 USD
Free Shipping on orders $49 and up
Aluminum connector vs OEM plastic The connector cracks/leaks over time causing coolant to leak and/or overheating problems Molded to OE coolant hose shape for superb fitment Engine heat and ozone resistant Durable ECD (Electro Chemical Degradation)-resistant EPDM material helps prevent electrolysis from breaking down the rubber from the inside-out Temperature rating: -40º F to 275º F (-40º C to 135º C)
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Engine Block Cover - Rear
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:36235515
Part#: 11142446298
Ships in 1 Business Day
$ 464.99 USD
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Details: Fitment guaranteed Replacement for cracked, or damaged engine block cover. Precisely manufactured to OE dimensions for exact fit and easy installation Durable high-quality materials are corrosion-resistant and withstand oil vapor and intense engine heat
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Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:4126643
Part#: 17137601948
Ships in 1 Business Day
$ 69.99 USD
Free Shipping on orders $49 and up
URO Coolant Expansion Reservoir. Quality replacement Coolant tank for leaking or old Coolant parts.


Meistersatz - Corporate Logo
T#:1195781
Part#: 17117639021
Ships in 3 Business Days
$ 30.99

This product was last offered at the strikethrough price on
07-07-2026

$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
URO Intercooler Expansion Tank - BMW N63 N74
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:593075
Part#: 17137647281
Ships in 1 Business Day
$ 59.99 USD
Free Shipping on orders $49 and up
The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break.
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URO Water Pump - BMW N54/N55 3.0L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:43750242
Part#: 11515A05704
Ships in 1-2 days
$ 333.99 USD
Free Shipping on orders $49 and up
If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. Keep your eyes peeled for warning signs it may be time to replace your water pump. N54 and N55 engines are prone to water pump failure - replace every 60,000 miles.
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Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:587219
Part#: 17137647283
Ships in 1 Business Day
$ 60.99 USD
Free Shipping on orders $49 and up

Mahle - Corporate Logo
T#:594781
Part#: 11537605431
Ships in 1 Business Day
$ 130.49 USD
Free Shipping on orders $49 and up
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.
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URO Thermostat Assembly - 11538671516
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:28171562
Part#: 11538671516
In Stock
$ 68.99 USD
Free Shipping on orders $49 and up

If your vehicle is struggling with cooling problems, the culprit could be the thermostat. Look out for signs like prolonged warm-up periods at highway speeds (indicative of a stuck-open thermostat) or consistent overheating (a sign of a stuck-closed thermostat). These issues can lead to performance issues and potential damage to crucial vehicle parts.

Key Features:

Ensured compatibility with your vehicle High-flow OE-style design ensures optimal engine cooling Factory housing dimensions for easy installation and secure hose connections Includes a temperature sensor where needed Constructed from durable alloy or composite material to resist warping or cracking, preventing coolant leaks

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Meyle Expansion Tank Cap
5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:579357
Part#: 3148009004
In Stock
Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
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Sale - Save 40%
$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD
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Replace worn or missing pieces.
Turbocharger Coolant Line - F06/F10/F12/F13
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50031872
Part#: 11538092641
Ships in 1 Business Day
$ 56.99 USD
Free Shipping on orders $49 and up
Turbocharger oil feed lines are often overlooked, but they play a critical role in turbo longevity. Replacing a worn or original feed line is an inexpensive safeguard against premature turbo failure. The oil feed line delivers a constant supply of clean, pressurized oil to the turbocharger bearings. Over time, exposure to extreme exhaust heat and repeated thermal cycling can cause oil to break down inside the line, leading to carbon buildup and restricted flow. Reduced oil supply quickly results in elevated bearing temperatures and accelerated wear. Installing a new turbo oil feed line restores proper oil delivery, helping maintain stable bearing temperatures and reliable lubrication. Many updated or upgraded feed lines feature improved materials, refined routing, or additional heat shielding to better withstand the high-temperature environment surrounding the turbocharger. Benefits of replacement: Helps prevent oil starvation caused by internal restriction Protects turbocharger bearings from heat-related wear Extends overall turbocharger service life Recommended preventative maintenance during turbo replacement or high-mileage service Especially important for increased boost or upgraded turbo applications In short, replacing the turbo oil feed line is a smart preventative maintenance step that supports long-term reliability and consistent performance.
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URO - Corporate Logo
T#:50031902
Part#: 11537586885
In Stock
$ 74.99

This product was last offered at the strikethrough price on
08-24-2026

$ 59.99 USD
Limited Qty Sale
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$ 74.99

This product was last offered at the strikethrough price on
08-24-2026

$ 59.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Provides optimal engine cooling performance.

Temperature Sensor
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37892090
Part#: 13621433076
In Stock
$ 10.34 USD
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Temperature sensor for monitoring coolant and oil
URO Thermostat Gasket - BMW N62 N63 N73 N74
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:592908
Part#: 11531440192
Ships in 1 Business Day
$ 0.97 USD
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Seals the thermostat to the water pump
Expansion Tank Cap
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373099
Part#: 17137516004
Ships in 1 Business Day
$ 10.99 USD
Free Shipping on orders $49 and up
The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap.
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Victor Reinz - Corporate Logo
T#:388687
Part#: 11537545278
In Stock
$ 6.11 USD
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$ 6.11 USD
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Seals your cooling system
Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
Ships in 6 Business Days
$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD
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$ 2.99 USD
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Behr - Corporate Logo
T#:594800
Part#: 17117605644
Ships on Oct 27, 2026
$ 362.99 USD
$ 362.99 USD
Replacement Radiator from Behr

Meyle Engine Coolant Thermostat - BMW FXX, GXX
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:52797701
Part#: 3282280016
Ships on Nov 2, 2026
New Item
$ 47.99 USD
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This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.

Meistersatz - Corporate Logo
T#:379740
Part#: 13621433076
In Stock at Vendor
$ 15.99 USD
Free Shipping on orders $49 and up
Monitors coolant / oil temperature
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:30828069
Part#: 17127619702
Back Ordered
$ 50.99 USD
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Your cooling system is crucial for maintaining your engine's health over the long haul. Upgrade to Uro's metal flange to replace damaged or worn coolant hoses and ensure lasting performance.

Meistersatz - Corporate Logo
T#:379621
Part#: 17117639020
Ships in 3 Business Days
$ 17.99 USD
Free Shipping on orders $49 and up
Quality aftermarket coolant expansion tank cap.