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Genuine BMW BMW Cooling System Parts & Accessories

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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Genuine BMW water pump housing coolant flange - G-Chassis - B48TU (B4...

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T#:48780791

Part#: 11515A74E79

In Stock

2% off MSRP $ 133.99

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

$ 130.99 USD

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2% off MSRP

$ 133.99

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

$ 130.99 USD

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Genuine BMW replacement coolant flange for back of water pump housing

Hex Bolt & Washer Kit

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T#:55245856

Part#: 0711990XXKTKT

Ships in 5 Business Days

$ 35.31 USD

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$ 35.31 USD

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Turner Motorsport offers this Genuine BMW Hex Bolt and Washer Kit to keep your chassis maintenance or engine refresh completely up to factory standard.

O-Ring And Gasket Kit

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T#:55245812

Part#: 17227800XKT

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$ 24.21 USD

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$ 24.21 USD

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This Maintenance Seal Kit bundles two high-failure items that should always be replaced anytime the engine oil cooler lines or oil level sensor are disturbed.

Water Pump Installation Hardware Kit

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T#:55209926

Part#: 0071199KT

In Stock

$ 7.94 USD

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$ 7.94 USD

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This Genuine BMW water pump installation hardware kit is the exact factory refresh package needed to maintain the structural integrity of your cooling system's plumbing.

Genuine BMW Upper Radiator Cooant Hose - BMW G42 G20 G22/23/26 B48D/B...

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T#:49857443

Part#: 17125A44477

Ships in 4 Business Days

6% off MSRP $ 141.99

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

$ 132.99 USD

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6% off MSRP

$ 141.99

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

$ 132.99 USD

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Replace your old coolant hose with a brand new hose from Genuine BMW to eliminate coolant leaks and prevent overheating.

Genuine BMW Fan Cowl with Acoustic Ring - G05/G06/G07/G09/F95/F96 ...

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T#:49508945

Part#: 17425A57751

Ships in 2 Business Days

4% off MSRP $ 254.00

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

$ 242.99 USD

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4% off MSRP

$ 254.00

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

$ 242.99 USD

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Maintain factory-engineered cooling performance with this Genuine BMW fan cowl featuring an integrated acoustic ring. More than just a plastic shroud, this precision-molded assembly surrounds the cooling fan to properly channel airflow through the radiator while minimizing under-hood noise. Manufactured to BMW’s exact factory specifications, this fan cowl allows the radiator and auxiliary fan to draw air efficiently through the core support. The built-in acoustic ring helps reduce fan noise, turbulence, and unwanted drone under heavy cooling demands—especially beneficial on larger BMW platforms where airflow control is critical. Designed as a direct replacement for the original shroud, it installs without modification and restores the correct airflow path around the radiator and cooling fan. Whether you’re addressing damage from front-end service, replacing a cracked or warped cowl, or refreshing your cooling system, this OEM fan cowl delivers factory-correct fit, function, and long-term reliability.

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Coolant Refresh Kit

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T#:55317654

Part#: 1153CRKKT

Ships in 2 Business Days

$ 56.52 USD

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$ 56.52 USD

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Whether you’re maintaining an iconic E30 318i or keeping your daily driver running cool, Turner Motorsport has you covered with this direct-fit Cooling Replacement Kit.

Radiator Lower Support & Bushing Kit

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T#:55317651

Part#: 171178RLSKT

Ships in 2 Business Days

$ 56.33 USD

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$ 56.33 USD

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Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.

Radiator Mounting Kit

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T#:55317656

Part#: 1711173RMKT

Ships in 2 Business Days

$ 59.02 USD

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$ 59.02 USD

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This Genuine BMW Radiator Mounting Kit provides the absolute best option for restoring the factory anchoring system on your chassis.

Oil Cooler Line O-Ring & Screw Kit

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T#:55281750

Part#: 1722OCLKT

Ships in 2 Business Days

$ 20.60 USD

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$ 20.60 USD

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This Genuine BMW Oil Cooler Line O-Ring & Screw Kit includes the exact factory components required to safely service your oil cooler hard lines.

Lower Radiator Mount & Bracket Refresh Kit

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T#:55245854

Part#: 1711117XKT

Ships in 2 Business Days

$ 26.92 USD

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$ 26.92 USD

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This Genuine BMW Lower Radiator Mount and Bracket Refresh Kit supplies the factory-original hardware needed to overhaul your lower radiator supports.

Cooling & Drive Belt Service Kit

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T#:55317703

Part#: 112814CRKT

Ships in 2 Business Days

$ 79.26 USD

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$ 79.26 USD

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Swap out your aged factory components before they fail, and maintain total confidence in your charging, cooling, and air conditioning systems.

Coolant Hose & Hardware Refresh Kit

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T#:55317676

Part#: 11531CKT

Ships in 4 Business Days

$ 74.07 USD

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$ 74.07 USD

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Preventative cooling system maintenance is vital, and this complete hose and clamp overhaul kit is designed to eliminate weak points before they fail.

Genuine BMW Coolant Expansion Tank - Low Temp Circuit - BMW G20 G22/2...

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T#:49857448

Part#: 17135A270D3

Ships in 5 Business Days

6% off MSRP $ 170.99

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

$ 160.99 USD

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6% off MSRP

$ 170.99

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

$ 160.99 USD

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If your coolant reservoir tank has cracked or if one of the mounting points has broken, this is the perfect replacement to ensure your coolant system remains leak-free. This reservoir specifically works with the low-temp circuit, which is responsible for cooling your manifold-integrated intercooler

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Service Kit - Intake & Cooling

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T#:55245851

Part#: 11XX17KT

Ships in 6 Business Days

$ 25.88 USD

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$ 25.88 USD

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Maintain the factory engineering integrity and peak performance of your ultimate driving machine with this Genuine BMW Intake and Cooling Refresh Kit.

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