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BMW Cooling System Parts & Accessories for BMW 3 Series F34 (2014+)

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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OEM Style Hose Clamps

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T#:338927

Part#: HOSE-CLAMPS

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06-13-2026

Starting at $ 3.87 USD

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Sale - Save 3%

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This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 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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Turner Motorsport Silicone Radiator Hoses - F2X F3X N20

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T#:50311460

Part#: 008745LA01-01

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Sale - Save 25% $ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD

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Sale - Save 25%

$ 101.99

This product was last offered at the strikethrough price on
06-14-2026

$ 76.49 USD

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Tired of dealing with brittle, dry-rotted rubber hoses? Whether you're refreshing your cooling system or replacing aging components, our Silicone Radiator Coolant Hose Set is the ultimate upgrade. Designed for durability, performance, and a factory-perfect fit, these premium silicone hoses outperform standard rubber in every way.

Why Choose Silicone Over Rubber?

Made from heavy-duty, reinforced 4-ply fluorosilicone, Turner Motorsport hoses withstand extreme temperatures and pressures far beyond OEM rubber hoses. Engineered to resist oil, fuel, and electrochemical degradation, these hoses are tested for continuous operation at 250°F and over 45 psi, delivering superior reliability, reduced turbulence, and improved coolant flow.

Replaces OEM Part Numbers: 17127596837 & 17127596838. Can be used with your factory connectors.

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Turner Motorsport Silicone Radiator Hoses (With OE Connectors) - F2X ...

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T#:50311459

Part#: 008745LA02

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$ 189.99 USD

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Why Choose Silicone Over Rubber?

Replaces OEM Part Numbers: 17127596837 & 17127596838. Pre-assembled with factory "quick-connect" hose ends for easy installation!

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Mosselman MSL Oil Thermostat Installation Kit

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T#:26404801

Part#: 030210012

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$ 27.99 USD

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Prevent costly oil leaks when installing a new MSL oil cooler from Mosselman. These high-quality rubber gaskets ensure your oil thermostat is sealed properly, guaranteeing peak performance and long service life.

Kit includes:

2x Oil Pressure Hose O-Ring 1x Oil Filter Housing Gasket

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N55 Mosselman Billet Oil Thermostat

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T#:4621130

Part#: OTN55.T85

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$ 399.99 USD

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**** DOES NOT INCLUDE HARDWARE ****** Hardware - ES4772301 The N55 engine is no stranger to oil cooling problems, that�s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned. The Thermostat is plug-and-play and made out of a solid block of high-grade aluminum at our own facility. It is equipped with a real thermostat, not an always open solution. The oil will still reach the operating temperature at the same time as a stock thermostat Features Include: 20�C/68F Lower Than Stock Rock Solid Housing - CNC machined housing. Real Thermostat - Equipped with a real thermostat, not an always open solution. For use in hot and cold climates Quick Installation - Takes only 30 minutes to install.

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AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbo...

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T#:39497984

Part#: BM-0803-GC

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$ 74.99 USD

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Turner Motorsport offers the AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbon as the perfect addition for BMW owners looking to elevate their engine bay’s appearance with premium materials and precision engineering.

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N55 Mosselman Billet Oil Thermostat - Black

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T#:50101777

Part#: 30210057

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$ 399.00 USD

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The N55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.

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BMW Cooling System Parts & Accessories for BMW 3 Series F34 (2014+)

Sub-Categories

OEM Style Hose Clamps

Turner Motorsport Silicone Radiator Hoses - F2X F3X N20

Turner Motorsport Silicone Radiator Hoses (With OE Connectors) - F2X ...

Mosselman MSL Oil Thermostat Installation Kit

N55 Mosselman Billet Oil Thermostat

AutoTecknic Dry Carbon Coolant Expansion Tank Cap Cover - Gloss Carbo...

N55 Mosselman Billet Oil Thermostat - Black

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