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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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Hepu - Corporate Logo
T#:369443
Part#: 11517527910
In Stock
$ 68.50 USD
Free Shipping on orders $49 and up
Due to high failure rate on BMW water pumps, we recommend replacement every 60,000 mile interval. Hepu's replacement water pump 11517527910 features a durable metal impeller, while the more expensive Genuine BMW utilizes a high failure plastic impeller.
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Hepu - Corporate Logo
T#:594805
Part#: 11519070761
In Stock
$ 99.99

This product was last offered at the strikethrough price on
05-07-2026

$ 96.99 USD
Free Shipping on orders $49 and up
$ 96.99 USD
Free Shipping on orders $49 and up
Hepu - Corporate Logo
T#:393249
Part#: 11510393336
Ships in 1-2 days
$ 140.18 USD
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$ 140.18 USD
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Prevent cooling system failure. New - not remanufactured!

Hepu - Corporate Logo
T#:27805177
Part#: 11518632585
In Stock
$ 264.99

This product was last offered at the strikethrough price on
05-04-2026

$ 251.99 USD
Free Shipping on orders $49 and up
$ 251.99 USD
Free Shipping on orders $49 and up
Restore your BMW's cooling performance with this new HEPU mechanical water pump. BMW coolant pumps, both electric and mechanical, are known to fail for various reasons. If your mechanical pump has failed, this low-cost alternative is a great option to get your BMW back on the road!
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Hepu - Corporate Logo
T#:6351019
Part#: 11517550484
In Stock
$ 61.99 USD
Free Shipping
$ 61.99 USD
Free Shipping

Ensure optimal heat dispersion in your Mini's cooling system with the Hepu water pump. Designed as an OEM supplier for MINI, this water pump effectively circulates coolant, safeguarding your engine from overheating. Detecting signs of a failing water pump such as coolant leaks or unusual noises is crucial. Replacing the water pump as part of a coolant system refresh is essential to maintain your engine's longevity.

  • OEM supplier for MINI
  • Ensures proper coolant circulation
  • Prevents engine overheating
  • Helps identify and resolve coolant leaks or unusual noises
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Hepu - Corporate Logo
T#:1195855
Part#: 11519070760
Ships on Sep 9, 2026
$ 53.52 USD
Free Shipping on orders $49 and up
Prevent cooling system failure

Hepu - Corporate Logo
T#:2332917
Part#: P436
Ships in 1 Business Day
$ 73.99 USD
Free Shipping
$ 73.99 USD
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M7 Speed - Corporate Logo
T#:386325
Part#: 53-3M7104
Ships in 3 Business Days
$ 49.99 USD
Free Shipping on orders $49 and up

Have you ever noticed how crisp and responsive your MINI was after that initial warm-up period, and wanted to keep that feeling for the rest of the day? This 180° F Thermostat is the solution. Not only does the engine maintain its fresh-start power, but also the under-hood temperatures are greatly diminished (see comparison table below). Now when your car sits after a hard run it won't cook and dry out everything under the hood as bad as it did in the stock configuration. This is great for the MINI owner that lives in a hot climate, or those that push their cars hard at the track or local twisty road.

Please Note: This thermostat does not include a replacement gasket. Reuse the gasket from the OEM thermostat.

Cold Weather Alert: If you encounter weather below 50º F or 10º C, please be aware that the ECU could throw a “check engine” light. This is no cause for alarm as the sensors are registering an anomaly and the thermostat is not harming the engine. The “check engine” light can be reset with a diagnostic tool or left as is. Please call if you have questions.
 

Test ParametersThermostat Temp OriginalThermostat Temp M7180Delta (°F)

Intercooler Manifold9870-28

Upper Coolant Hose190179-11

Supercharger at Pulley Shaft Housing178160-18

Head at Thermostat174153-21

Idle w A/C on214185-29

Coolant Temp During Hard Driving212180-32

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Hepu - Corporate Logo
T#:16707428
Part#: 11518635089
In Stock at Vendor
$ 1,123.99

This product was last offered at the strikethrough price on
05-08-2026

$ 1,091.99 USD
Free Shipping
$ 1,091.99 USD
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If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. The main downside to an electric water pump is you may also notice nothing - nothing but overheating! Keep your eyes peeled for warning signs it may be time to replace your water pump. Aluminum mounting bolts are one-time use.
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Hepu - Corporate Logo
T#:389023
Part#: 11517586780
Ships in 1-2 days
$ 152.99

This product was last offered at the strikethrough price on
05-07-2026

$ 148.99 USD
Free Shipping
$ 148.99 USD
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Address problems related to bad bearings or impellers
Hepu - Corporate Logo
T#:582854
Part#: 11510393338
Ships on Sep 9, 2026
$ 51.99 USD
Free Shipping on orders $49 and up
Includes O-ring