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BMW Cooling System Parts & Accessories for BMW 5 Series E61 (2006-2010)

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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aluminum Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:587663

Part#: 11537544638PRM

Ships in 2 Business Days

$ 26.99 USD

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$ 26.99 USD

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Coolant hoses can crack and leak after long term exposure to engine heat. This is a replacement for the coolant hose that comes off of the thermostat. Metal Connector vs OEM Plastic Connector Plastic gets brittle from heat cycles and cracks or breaks 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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URO Coolant Pipe O-Ring - BMW N52 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:37892133

Part#: 11517514942

Ships on Sep 30, 2026

$ 2.09 USD

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$ 2.09 USD

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URO Coolant Pipe O-Ring - BMW N52 3.0L

Engineered to meet OE coolant pipe o-ring dimensions, the URO Coolant Pipe O-Ring ensures easy installation and a perfect fit for BMW N52 3.0L engines. It is designed to resist cooling system heat and antifreeze, providing reliable performance under demanding conditions. Constructed from durable ECD (Electro Chemical Degradation)-resistant EPDM material, it helps prevent electrolysis, extending the lifespan of your cooling system. With a temperature rating of -40º F to 275º F (-40º C to 135º C), this o-ring is built to withstand extreme temperatures. Supported by a 24-month unlimited mileage warranty, it is a dependable solution for maintaining your BMW’s cooling system efficiency.

Key Benefits:

Precision-molded to OE dimensions for easy installation and perfect fit.
Resists cooling system heat and antifreeze for reliable performance.
Durable ECD-resistant EPDM material prevents electrolysis.
Temperature rating of -40º F to 275º F for extreme condition durability.
Includes a 24-month unlimited mileage warranty for peace of mind.
Specifically designed for BMW N52 3.0L engines.

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Coolant Hose

5X Entries Into Our F80 M3 Sweepstakes

T#:40444295

Part#: 11537544638

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$ 28.99 USD

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$ 28.99 USD

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Coolant hoses can become brittle and leak over time due to prolonged exposure to engine heat. This hose serves as a direct replacement for the one connected to the thermostat.

Coolant Hose

For vehicles with automatic transmission

2X Entries Into Our F80 M3 Sweepstakes

T#:592009

Part#: 17127563852

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$ 39.99 USD

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$ 39.99 USD

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Connects the transmission heat exchange to the coolant return line

Electric Water Pump

5X Entries Into Our F80 M3 Sweepstakes

T#:54959290

Part#: 313 220 0017

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$ 326.99 USD

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$ 326.99 USD

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Whether you are daily driving or doing a preventative cooling overhaul, this high-quality replacement pump includes fresh mounting hardware to ensure your BMW's cooling system remains reliable.

Water Pump Service Kit

2X Entries Into Our F80 M3 Sweepstakes

T#:57616370

Part#: WPS0504

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$ 1,264.99 USD

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$ 1,264.99 USD

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Keep your cooling system performing at its peak with this complete Rein Water Pump Service Kit.

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BMW Cooling System Parts & Accessories for BMW 5 Series E61 (2006-2010)

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aluminum Coolant Hose

URO Coolant Pipe O-Ring - BMW N52 3.0L

URO Coolant Pipe O-Ring - BMW N52 3.0L

Key Benefits:

Coolant Hose

Coolant Hose

Electric Water Pump

Water Pump Service Kit

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