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BMW Cooling System Parts & Accessories for BMW 6 Series F12 (2012+)

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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Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580397

Part#: B8800084

In Stock

Sale - Save 15% $ 146.99

This product was last offered at the strikethrough price on
05-03-2026

$ 124.94 USD

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Sale - Save 15%

$ 146.99

This product was last offered at the strikethrough price on
05-03-2026

$ 124.94 USD

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OEM Rein Expansion Tank - F01,F06,F10,F12,F13

2X Entries Into Our F80 M3 Sweepstakes

T#:555024

Part#: 17137647283

Ships in 2 Business Days

Sale - Save 5% $ 118.99

This product was last offered at the strikethrough price on
08-31-2026

$ 113.04 USD

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Sale - Save 5%

$ 118.99

This product was last offered at the strikethrough price on
08-31-2026

$ 113.04 USD

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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues.

his item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N54,N55,N57N

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Rein Water Pump - N63 S63

2X Entries Into Our F80 M3 Sweepstakes

T#:393385

Part#: 11517548263

In Stock

Sale - Save 5% $ 215.99

This product was last offered at the strikethrough price on
08-31-2026

$ 205.19 USD

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Sale - Save 5%

$ 215.99

This product was last offered at the strikethrough price on
08-31-2026

$ 205.19 USD

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In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust. Replace your water pump with Rein to get your cooling system back in check.

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