Genuine BMW BMW Cooling System Parts & Accessories for BMW 7 Series E38 (1995-2001)

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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 Cooling Vent Hose - E38 750iL M73 5.4L
Genuine BMW Cooling Vent Hose - E38 750iL M73 5.4L
Genuine BMW - Corporate Logo
T#:35870
Part#: 11531440104
In Stock
Sale - Save 26% $ 40.99

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

$ 30.33 USD
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Sale - Save 26%
$ 40.99

This product was last offered at the strikethrough price on
05-02-2026

$ 30.33 USD
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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E38

Fits BMW Engines including:
M73N

Genuine BMW Thermostat With Housing - E39 540i, E38 740i
Genuine BMW Thermostat With Housing - E39 540i, E38 740i
Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
Sale - Save 5% $ 192.99

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

$ 182.87 USD
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Add to Wish List
Sale - Save 5%
$ 192.99

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

$ 182.87 USD
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Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine. 

This item fits the following BMWs: 
1999-2001  E38 BMW  740i 740il 
1999-2003  E39 BMW  540i 
1999-2003  E53 BMW  X5 4.4i X5 4.6is

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Genuine BMW Rubber Protection Strip - E39 E38 E52
Genuine BMW Rubber Protection Strip - E39 E38 E52
Genuine BMW - Corporate Logo
T#:45775
Part#: 17111737713
In Stock
Sale - Save 8% $ 25.99

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

$ 23.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 8%
$ 25.99

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

$ 23.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
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Genuine BMW Rubber Strip - L=621mm
This item fits the following BMW Chassis:
E39 M5,E38,E39

Fits BMW Engines including:
M52,M54,M60,M62,M73,M73N,S62

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Genuine BMW Thermostat With Housing - E39 540i
Genuine BMW Thermostat With Housing - E39 540i
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:360671
Part#: 11531437526
In Stock
Sale - Save 8% $ 192.99

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

$ 178.05 USD
Free Shipping
Add to Wish List
Sale - Save 8%
$ 192.99

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

$ 178.05 USD
Free Shipping
Add to Wish List

Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel).

This item fits the following BMWs: 
up to 09/1999  E38 BMW  740i 740il
up to 09/1999  E39 BMW  540i

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