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

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

Genuine BMW - Corporate Logo
T#:49465
Part#: 22316760531
Ships on Sep 9, 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
Free Shipping on orders $49 and up
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

Show More Show Less
URO Water Pump - BMW N52 3.0L
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
URO - Corporate Logo
T#:39768338
Part#: 11517586925
In Stock
Sale - Save 10% $ 296.99

This product was last offered at the strikethrough price on
07-13-2026

$ 267.29 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 296.99

This product was last offered at the strikethrough price on
07-13-2026

$ 267.29 USD
Free Shipping on orders $49 and up
If your engine is over heating or you have noticed coolant loss, there is a chance your water pump has failed. This URO replacement is a great option to get your BMW back on the road without breaking the bank.
Show More Show Less