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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

In Stock

Sale - Save 3% $ 3.99

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

Starting at $ 3.87 USD

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Sale - Save 3%

$ 3.99

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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$ 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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Water Pump - Pierburg

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T#:554817

Part#: 11518635090

In Stock

$ 910.99

This product was last offered at the strikethrough price on
02-01-2026

$ 579.99 USD

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$ 579.99 USD

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If your water pump is showing signs of wear and tear, it's crucial to act promptly. Avoid issues like coolant leaks or the dreaded whining noise under the hood by replacing it as soon as possible. The electric water pump, while efficient, may not always give clear signals – except for one: overheating!

Prevents coolant leaks
Eliminates whining noise
Efficient electric water pump
Timely replacement prevents overheating

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Pierburg Water Pump

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T#:363990

Part#: 11518635089

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$ 463.99 USD

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$ 463.99 USD

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New original equipment water pump to keep your cooling system in tip top shape

OEM Pierburg Water Pump - BMW B46 2.0L

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T#:25142296

Part#: 11518638026

Ships on Jul 29, 2026

$ 149.00

This product was last offered at the strikethrough price on
01-28-2026

$ 146.99 USD

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$ 146.99 USD

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The water pump in your vehicle keeps all that coolant flowing freely. If it begins to fail, overheating problems are inevitable. Don't take a chance on doing damage to engine internals by not replacing your water pump. This has been a common problem amongst most German vehicles. Water Pump failure can lead to your vehicle making an unnecessary trip to the repair shop. If your pump stops working, coolant temperatures rise rapidly and can overheat the engine, leading to head gasket or even piston ring failure. This is a great preventative maintenance item when doing any type of timing belt replacement. This is a common replacement around 80,000-100,000 miles.

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Pierburg BMW Auxiliary Water Pump

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T#:22064596

Part#: 11517583965

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$ 221.99 USD

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$ 221.99 USD

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This is the high quality Pierburg electric water pump for F30 F32 F22 models with the N55 6 cylinder turbo engine. The electric water pumps on older N54 and N55 engines tended to be failure prone. The 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). NOTE: ONLY for cars with M Sports Package - option code P337A This item fits the following BMWs: 2012+ F30 BMW 335i 335i xDrive - Sedan 2013+ F32 BMW 435i 435i xDrive - Coupe 2013+ F33 BMW 435i Convertible 435i xDrive Convertible- Convertible 2014+ F34 BMW 335i xDrive GT - Gran Tourismo 2014+ F36 BMW 435i Gran Coupe 435i xDrive Gran Coupe

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

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OEM Style Hose Clamps

Turner Motorsport Silicone Radiator Hoses - F2X F3X N20

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

Water Pump - Pierburg

Pierburg Water Pump

OEM Pierburg Water Pump - BMW B46 2.0L

Pierburg BMW Auxiliary Water Pump

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