BMW Cooling System Parts & Accessories for BMW F80 M3 S55 3.0L

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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
Free Shipping on orders $49 and up
Sale - Save 6%
$ 22.99

This product was last offered at the strikethrough price on
06-15-2026

$ 21.64 USD
Free Shipping on orders $49 and up

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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Packaged by Turner - Corporate Logo
T#:55353595
Part#: OTN54.T85KT3
In Stock
New Item
$ 390.23 USD
Free Shipping on orders $49 and up
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.
Genuine BMW - Corporate Logo
T#:200323
Part#: 17117848787
In Stock
Sale - Save 8% $ 79.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 73.50 USD
Free Shipping
Sale - Save 8%
$ 79.99

This product was last offered at the strikethrough price on
08-26-2026

$ 73.50 USD
Free Shipping


Genuine BMW Module Mount, Right -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83

Fits BMW Engines including:
S55


Genuine BMW - Corporate Logo
T#:199242
Part#: 51648055742
In Stock
Sale - Save 8% $ 100.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 93.40 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 100.99

This product was last offered at the strikethrough price on
08-26-2026

$ 93.40 USD
Free Shipping on orders $49 and up


Genuine BMW Bracket, Aux. Radiator, Lower Right -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83


Genuine BMW - Corporate Logo
T#:200325
Part#: 17117848789
In Stock
Sale - Save 8% $ 79.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 73.50 USD
Free Shipping
Sale - Save 8%
$ 79.99

This product was last offered at the strikethrough price on
08-26-2026

$ 73.50 USD
Free Shipping


Genuine BMW Module Mount, Bottom -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83

Fits BMW Engines including:
S55

Genuine BMW - Corporate Logo
T#:206331
Part#: 11537848500
In Stock
Sale - Save 8% $ 300.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 276.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 8%
$ 300.99

This product was last offered at the strikethrough price on
05-27-2026

$ 276.99 USD
Limited Qty Sale
Free Shipping
This is the coolant line that runs from the water pump to the cylinder head.

Genuine BMW - Corporate Logo
T#:206334
Part#: 11537848507
In Stock
Sale - Save 8% $ 210.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 194.32 USD
Free Shipping
Sale - Save 8%
$ 210.99

This product was last offered at the strikethrough price on
08-26-2026

$ 194.32 USD
Free Shipping
This is the hose that runs from the turbochargers back to the coolant pump.
Genuine BMW - Corporate Logo
T#:212739
Part#: 11518600442
In Stock
Sale - Save 10% $ 343.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 308.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 10%
$ 343.99

This product was last offered at the strikethrough price on
06-08-2026

$ 308.99 USD
Limited Qty Sale
Free Shipping


Genuine BMW Genuine BMW Coolant Pump, Electric - 11518600442
This item fits the following BMW Chassis:
F80,F82,F83,

Fits BMW Engines including:
S55,

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Genuine BMW - Corporate Logo
T#:200326
Part#: 17117848790
In Stock
Sale - Save 10% $ 29.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 27.00 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 29.99

This product was last offered at the strikethrough price on
08-26-2026

$ 27.00 USD
Free Shipping on orders $49 and up
Genuine BMW Seal, Cooling Module

Genuine BMW - Corporate Logo
T#:46027
Part#: 17117596923
In Stock
Sale - Save 9% $ 3.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3.65 USD
Free Shipping on orders $49 and up
Sale - Save 9%
$ 3.99

This product was last offered at the strikethrough price on
05-12-2026

$ 3.65 USD
Free Shipping on orders $49 and up


Genuine BMW Support Sleeve -
This item fits the following BMW Chassis:
F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N20,N26,N55,S55

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Genuine BMW - Corporate Logo
T#:613575
Part#: 64116834917
In Stock
Sale - Save 8% $ 278.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 257.29 USD
Free Shipping
Sale - Save 8%
$ 278.99

This product was last offered at the strikethrough price on
08-26-2026

$ 257.29 USD
Free Shipping
eplace your faulty or failing electric water pump with this Genuine BMW pump for guaranteed reliability. This water pump feeds coolant to the turbo, keeping temperatures optimal for performance and smooth operation.
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