BMW Cooling System Parts & Accessories for BMW 6 Series E64 (2004-2010)

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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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Performance Thermostat - 90C - N62, N63, S63, N73, S55
Performance Thermostat - 90C - N62, N63, S63, N73, S55
Bremmen Parts - Corporate Logo
T#:637061
Part#: 11537586885
In Stock
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05-03-2026

$ 75.06 USD
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Includes housing and sealing o-ring A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also helping to increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Geba Water Pump - BMW E9X M3 S65, E60 M5 M6 S85
Geba Water Pump - BMW E9X M3 S65, E60 M5 M6 S85
Geba - Corporate Logo
T#:363610
Part#: 11517838201
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$ 190.99 USD
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$ 190.99 USD
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This GEBA water pump is a new, high quality OE replacement that will ensure years of trouble free operation, keeping you on the road with peace of mind. This water pump has a metal impeller and includes the sealing o-ring.
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Meistersatz CAP- EXPANSION TANK
Meistersatz CAP- EXPANSION TANK
Meistersatz - Corporate Logo
T#:1195781
Part#: 17117639021
Ships in 4 Business Days
$ 30.99

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

$ 29.99 USD
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$ 29.99 USD
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Water Pump - E60 545i, E63 645ci, E53 X5 4.4i, 4.8is - N62 engine
Water Pump - E60 545i, E63 645ci, E53 X5 4.4i, 4.8is - N62 engine ...
Geba - Corporate Logo
T#:190639
Part#: 11517524551
Ships in 1-2 days
$ 214.99

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

$ 208.99 USD
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$ 208.99 USD
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This water pump includes the gasket (11517508535) and is a direct replacement for your stock pump. This is a water pump. The thermostat is also located in the water pump housing so you may also want to consider replacing that at the same time.

Geba builds all of their pumps to exceed factory specifications by using a metal impeller. This offers a huge improvement over stock and a massive increase in reliability. Servicing all major European models, Geba has you covered when it comes time for a new water pump.

This item fits the following BMWs:
2004-2005 E60 BMW 545i
2004-2005 E63 BMW 645ci
5/2002-2005 E65 BMW 745i 745li
2004-2006 E53 BMW X5 4.4i X5 4.8is
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Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53
Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53 ...
Bremmen Parts - Corporate Logo
T#:640141
Part#: 13621433077
In Stock
Sale - Save 20% $ 20.99

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

$ 16.79 USD
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$ 20.99

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The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary
Bremmen Parts Radiator Cooling Fan Assembly - E60, E61, E63, E64, E65, E66
Bremmen Parts Radiator Cooling Fan Assembly - E60, E61, E63, E64, E65...
Bremmen Parts - Corporate Logo
T#:1195937
Part#: 17427543282
Ships in 1-2 days
Sale - Save 5% $ 722.15

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

$ 686.04 USD
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$ 722.15

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

$ 686.04 USD
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Cooling fan with housing
Thermostat - 105C
Thermostat - 105C
Bremmen Parts - Corporate Logo
T#:15511827
Part#: 11537502779
Ships on Aug 14, 2026
Sale - Save 3% $ 46.99

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

$ 45.58 USD
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Sale - Save 3%
$ 46.99

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05-03-2026

$ 45.58 USD
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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.
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Engine Water Pump Gasket Kit
Engine Water Pump Gasket Kit
Elring - Corporate Logo
T#:54317216
Part#: 359.200
In Stock
New Item
$ 12.99 USD
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$ 12.99 USD
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This Elring water pump gasket set is the perfect solution for refreshing your BMW's cooling circuit during a water pump service or cooling system overhaul.
New Water Pump - With O-Ring - Metal Impellar
New Water Pump - With O-Ring - Metal Impellar
Bremmen Parts - Corporate Logo
T#:56074199
Part#: 11517838201
Ships on Nov 19, 2026
New Item
$ 99.99 USD
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$ 99.99 USD
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Meistersatz Temperature Sensor
Meistersatz Temperature Sensor
Meistersatz - Corporate Logo
T#:379740
Part#: 13621433076
Ships in 4 Business Days
$ 15.99 USD
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$ 15.99 USD
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Monitors coolant / oil temperature

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