Genuine BMW BMW Cooling System Parts & Accessories for BMW Z Series E85/6 (2003-2008)

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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 - Corporate Logo
T#:49465
Part#: 22316760531
Ships on Sep 8, 2026
Sale - Save 5% $ 253.99

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

$ 240.71 USD
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Sale - Save 5%
$ 253.99

This product was last offered at the strikethrough price on
06-25-2026

$ 240.71 USD
Free Shipping on orders $49 and up


Genuine BMW Gearbox Support
This item fits the following BMW Chassis:
E85 Z4M,E46,E85 Z4,E86 Z4

Genuine BMW - Corporate Logo
T#:45593
Part#: 17107524914
Ships in 3 Business Days
Sale - Save 6% $ 68.99

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

$ 64.66 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 68.99

This product was last offered at the strikethrough price on
06-15-2026

$ 64.66 USD
Free Shipping on orders $49 and up


Genuine BMW Module Carrier

This item fits the following BMW Chassis:
E82 1M Coupe,E82,E89 Z4,E90,E92,E93

Fits BMW Engines including:
M57,N20,N51,N52,N52N,N54,N54T,N55,S65

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Genuine BMW - Corporate Logo
T#:4472
Part#: 11511436590
In Stock
Sale - Save 6% $ 73.99

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

$ 69.65 USD
Free Shipping
Sale - Save 6%
$ 73.99

This product was last offered at the strikethrough price on
06-25-2026

$ 69.65 USD
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SEE T#337981

Genuine BMW - Corporate Logo
T#:45825
Part#: 17112248408
Ships in 3 Business Days
Sale - Save 6% $ 94.99

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

$ 89.54 USD
Free Shipping
Sale - Save 6%
$ 94.99

This product was last offered at the strikethrough price on
06-25-2026

$ 89.54 USD
Free Shipping


Genuine BMW Mounting Plate -
This item fits the following BMW Chassis:
E85,E86

Fits BMW Engines including:
M54,N52