BMW Cooling System Parts & Accessories for BMW 5 Series E28 (1982-1988)

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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 Radiator Cap 1,4Bar - 17112227683 - E30,E30 M3, E28 M5
Genuine BMW Radiator Cap 1,4Bar - 17112227683 - E30,E30 M3, E28 M5 ...
Genuine BMW - Corporate Logo
T#:22513
Part#: 17112227683
In Stock
Sale - Save 9% $ 26.99

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$ 24.57 USD
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$ 26.99

This product was last offered at the strikethrough price on
08-26-2026

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Genuine BMW Radiator Cap - 1,4Bar
This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
S14,S38

Genuine BMW Radiator Hose - Lower - E23 733i 735i E24 633CSi 635CSi E28
Genuine BMW Radiator Hose - Lower - E23 733i 735i E24 633CSi 635CSi E...
Genuine BMW - Corporate Logo
T#:6922
Part#: 11531289859
In Stock
Sale - Save 8% $ 39.99

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

$ 36.99 USD
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$ 39.99

This product was last offered at the strikethrough price on
08-26-2026

$ 36.99 USD
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GENUINE BMW ENGINE HOSE 11531289859
Fits BMW Engines including:
M30

Genuine BMW Water Hose - Thermostat Housing to Water Connector Pipe - E24 E28
Genuine BMW Water Hose - Thermostat Housing to Water Connector Pipe -...
Genuine BMW - Corporate Logo
T#:6925
Part#: 11531306829
In Stock
Sale - Save 5% $ 21.99

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$ 20.99 USD
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$ 21.99

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

$ 20.99 USD
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GENUINE BMW ENGINE HOSE 11531306829.--

This item fits the following BMWs:
BMW M Series - M5, M6

--. Fits BMW Engines including:
S38

Genuine BMW Temperature Sensor - E21 320i E28 524td
Genuine BMW Temperature Sensor - E21 320i E28 524td
Genuine BMW - Corporate Logo
T#:40756
Part#: 12631279721
In Stock
Sale - Save 8% $ 44.99

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

$ 41.46 USD
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$ 44.99

This product was last offered at the strikethrough price on
08-26-2026

$ 41.46 USD
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Genuine BMW Temperature Switch - 17Cel

Fits BMW Engines including:
M10

Genuine BMW Locking Plug - E30 325e 325es 325i
Genuine BMW Locking Plug - E30 325e 325es 325i
Genuine BMW - Corporate Logo
T#:30617
Part#: 11111285395
In Stock
Sale - Save 19% $ 32.99

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$ 26.62 USD
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$ 32.99

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

$ 26.62 USD
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Genuine BMW Cover Lid -
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20

Hose - E28
Hose - E28
Genuine BMW - Corporate Logo
T#:35788
Part#: 11531275398
In Stock
Sale - Save 25% $ 40.99

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

$ 30.74 USD
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Sale - Save 25%
$ 40.99

This product was last offered at the strikethrough price on
08-26-2026

$ 30.74 USD
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Genuine BMW HOSE

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