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BMW Cooling System Parts & Accessories for BMW 6 Series E63 (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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Geba Water Pump - BMW E9X M3 S65, E60 M5 M6 S85

T#:363610

Part#: 11517838201

Ships on Dec 22, 2026

$ 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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Coolant Hose

For vehicles with automatic transmission only

2X Entries Into Our F80 M3 Sweepstakes

T#:379793

Part#: 17127534918

In Stock at Vendor

Sale - Save 5% $ 90.99

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

$ 86.44 USD

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$ 90.99

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

$ 86.44 USD

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From water pump to radiator

Rein Upper Radiator Hose - E60, E63, E64

2X Entries Into Our F80 M3 Sweepstakes

T#:592004

Part#: 17127540665

Ships in 1 Business Day

Sale - Save 5% $ 79.99

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

$ 75.99 USD

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$ 79.99

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

$ 75.99 USD

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Connects water pump to radiator

Upper Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:377397

Part#: 17127519248

Ships in 3 Business Days

Sale - Save 5% $ 100.99

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

$ 95.94 USD

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$ 100.99

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

$ 95.94 USD

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Attaches to the water pump

Water Pump - E60 545i, E63 645ci, E53 X5 4.4i, 4.8is - N62 engine ...

T#:190639

Part#: 11517524551

Ships in 1 day

$ 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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Rein Coolant Expansion Tank - E60, E61, E63, E64

2X Entries Into Our F80 M3 Sweepstakes

T#:402160

Part#: 17137542986

Ships in 1 Business Day

Sale - Save 5% $ 82.99

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

$ 78.84 USD

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$ 82.99

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

$ 78.84 USD

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Includes fluid level sensor

OEM Rein Coolant Hose w/ Temperature Sensor - BMW E60 E63/E64 E65/E66...

2X Entries Into Our F80 M3 Sweepstakes

T#:375746

Part#: 17127508011

In Stock at Vendor

Sale - Save 5% $ 75.99

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

$ 72.19 USD

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$ 75.99

This product was last offered at the strikethrough price on
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$ 72.19 USD

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This hose runs from the lower radiator port on the passenger side of the radiator to the water pump on the engine. Rubber hoses can crack over time, leading to coolant loss. Replace your hose with this OEM Rein hose to eliminate leaks and prevent overheating.

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Cool Retrun Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:379713

Part#: 17127540666

Ships in 3 Business Days

Sale - Save 5% $ 80.99

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

$ 76.94 USD

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$ 80.99

This product was last offered at the strikethrough price on
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$ 76.94 USD

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Connects to the radiator

Coolant Pipe Hose

T#:641533

Part#: 11511439976

Ships in 8 Business Days

$ 11.99 USD

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$ 11.99 USD

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This Burgaflex coolant pipe hose is built as a direct OEM-quality replacement to restore full integrity to your cooling circuit.

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