Home
Cooling

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

Clear BMW chassis

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:

Thermostat With Housing - 90C

For vehicles with a production date from 09/1998

10X Entries Into Our F80 M3 Sweepstakes

T#:598978

Part#: 11531436386

In Stock

Sale - Save 20% $ 93.99

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

$ 75.06 USD

Add to Wish List

Qty

Sale - Save 20%

$ 93.99

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

$ 75.06 USD

Add to Wish List

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 help 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.

Show More Show Less

Bav Auto Spill-Proof Coolant / Antifreeze Funnel

10X Entries Into Our F80 M3 Sweepstakes

T#:580395

Part#: B8800082

Ships on Oct 20, 2026

Sale - Save 15% $ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

Add to Wish List

Qty

Sale - Save 15%

$ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

Add to Wish List

Multiple adapters include to fit a variety of vehicles.

Bav Auto Fan Clutch Wrench - 32mm

10X Entries Into Our F80 M3 Sweepstakes

T#:580348

Part#: B8800019

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

Add to Wish List

Qty

Sale - Save 20%

$ 29.99

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

$ 23.99 USD

Add to Wish List

Used to remove your fan clutch

Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580397

Part#: B8800084

In Stock

Sale - Save 15% $ 146.99

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

$ 124.94 USD

Add to Wish List

Qty

Sale - Save 15%

$ 146.99

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

$ 124.94 USD

Add to Wish List

Bav Auto Fan Pulley Holder

10X Entries Into Our F80 M3 Sweepstakes

T#:580358

Part#: B8800031

Ships on Mar 4, 2027

Sale - Save 15% $ 23.99

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

$ 20.39 USD

Add to Wish List

Qty

Sale - Save 15%

$ 23.99

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

$ 20.39 USD

Add to Wish List

Used to remove your fan clutch

Coolant Expansion Tank

10X Entries Into Our F80 M3 Sweepstakes

T#:36032353

Part#: 17111741167

In Stock

Sale - Save 15% $ 60.99

This product was last offered at the strikethrough price on
09-16-2026

$ 51.84 USD

Add to Wish List

Qty

Sale - Save 15%

$ 60.99

This product was last offered at the strikethrough price on
09-16-2026

$ 51.84 USD

Add to Wish List

Bav Auto Angled Hose Pinch Plier Set - 2pc

10X Entries Into Our F80 M3 Sweepstakes

T#:580379

Part#: B8800058

In Stock

Sale - Save 25% $ 32.99

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

$ 24.74 USD

Add to Wish List

Qty

Sale - Save 25%

$ 32.99

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

$ 24.74 USD

Add to Wish List

Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.

Show More Show Less

Bremmen Coolant Bleeder Screw - BMW E30 E36 E38 E39 E46 E83 E90 Z4 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:640140

Part#: 17111712788

Ships on Jan 8, 2027

Sale - Save 39% $ 3.99

This product was last offered at the strikethrough price on
09-02-2026

$ 2.44 USD

Add to Wish List

Qty

Sale - Save 39%

$ 3.99

This product was last offered at the strikethrough price on
09-02-2026

$ 2.44 USD

Add to Wish List

Plastic bleeder screw for cooling system is used to bleed air that would otherwise create an air pocket and lead to overheating. Includes o-ring seal.

Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53 ...

10X Entries Into Our F80 M3 Sweepstakes

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

Add to Wish List

Qty

Sale - Save 20%

$ 20.99

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

$ 16.79 USD

Add to Wish List

The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary

Radiator Hose - Lower

10X Entries Into Our F80 M3 Sweepstakes

T#:39768309

Part#: 11531741409

In Stock

Sale - Save 25% $ 19.99

This product was last offered at the strikethrough price on
09-09-2026

$ 14.99 USD

Add to Wish List

Qty

Sale - Save 25%

$ 19.99

This product was last offered at the strikethrough price on
09-09-2026

$ 14.99 USD

Add to Wish List

Thermostat With Housing - 105C

10X Entries Into Our F80 M3 Sweepstakes

T#:15511816

Part#: 11531436386

Ships in 10 Business Days

Sale - Save 4% $ 30.99

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

$ 29.67 USD

Add to Wish List

Qty

Sale - Save 4%

$ 30.99

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

$ 29.67 USD

Add to Wish List

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 help 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.

Show More Show Less

Select Vehicle

Purpose

Category

Home

Cooling

Brand

Price

Special Offers

Shipping