Home
Cooling

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

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:

Bav Auto Spill-Proof Coolant / Antifreeze Funnel

T#:580395

Part#: B8800082

In Stock

Sale - Save 15% $ 32.99

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

$ 28.04 USD

Add to Wish List

Qty

Sale - Save 15%

$ 32.99

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

$ 28.04 USD

Add to Wish List

Multiple adapters include to fit a variety of vehicles.

Bav Auto Fan Clutch Wrench - 32mm

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 ...

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

T#:580358

Part#: B8800031

In Stock

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

Engine Coolant Temperature Sensor (Blue or White Plug) - E30 E28 E24 ...

T#:7255

Part#: 13621357414

In Stock

$ 20.99 USD

Add to Wish List

Qty

$ 20.99 USD

Add to Wish List

This is a Bosch coolant temperature sensor (#0280130026) for the fuel injection system. It has a white tip and is rated at 20 degree Celsius & 2500 Ohm.

This item fits the following BMWs:
1984-1985 E30 BMW 318i
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1976-1981 E12 BMW 528i 530i
1982-3/1987 E28 BMW 528e 533i
1980-1984 E24 BMW 633csi
1980-1984 E23 BMW 733i

Show More Show Less

Bav Auto Angled Hose Pinch Plier Set - 2pc

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

FAE Auxiliary Fan Switch 91C - E12, E21, E23, E24, E28, E3, E30, E9 ...

T#:369371

Part#: 61311364272

In Stock

$ 26.37

This product was last offered at the strikethrough price on
06-07-2026

$ 23.63 USD

Add to Wish List

Qty

$ 23.63 USD

Add to Wish List

Does not include o-ring

FAE Coolant Temperature Sensor - E23, E24, E28

T#:1195824

Part#: 62161360870

Ships on Aug 12, 2026

$ 23.93 USD

Add to Wish List

Qty

$ 23.93 USD

Add to Wish List

Relays engine coolant temperature information to the ECU.

Engine Coolant Temperature Sensor (Maroon Plug) - E30 318is, 325e/es ...

For vehicles with production date from 09/1985

T#:12657

Part#: 12621710512

In Stock

$ 28.65

This product was last offered at the strikethrough price on
06-19-2026

$ 15.76 USD

Add to Wish List

Qty

$ 15.76 USD

Add to Wish List

This is the is the engine coolant temperature sensor that provides information to the instrument cluster temperature gauge. The insulator has a tan insulator.

This item fits the following BMWs:
1986-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix M3
1991 E30 BMW 318i 318is 318ic
1986-1988 E28 BMW 528e

Show More Show Less

Water Pump to Thermostat Cooling Hose - E30 E34 E28

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:6917

Part#: 11531287651

In Stock

$ 10.99 USD

Add to Wish List

Qty

$ 10.99 USD

Add to Wish List

Replace your cracked or leaking coolant hose with this radiator coolant hose that goes from the waterpump to the thermostat on cars with the M20 engine. We recommend inspecting cooling system hoses for dry rot / cracks yearly.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1982-1988 E28 BMW 528e
1989-1990 E34 BMW 525i

Show More Show Less

Rein Expansion Tank Hose - E12, E21, E23, E24, E28, E30, E32, E34 ...

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:19431

Part#: 17121712736

In Stock

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

VENT HOSE 17121712736 Manufactured by CRP

Rein Thermostat O-Ring (60 X 3.5 mm) - E28 E30 E32 E34 E36 E39 Z3 E23...

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:591144

Part#: 11531265084

In Stock

$ 2.05 USD

Add to Wish List

Qty

$ 2.05 USD

Add to Wish List

This O-ring seals the thermostat to the cylinder head.

Rein Coolant Hose - E28, E30, E34

For vehicles with production date from 09/1987

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:379671

Part#: 13541719966

Ships in 2 Business Days

$ 6.11 USD

Add to Wish List

Qty

$ 6.11 USD

Add to Wish List

Thermostat to throttle housing

OEM Rein Radiator Coolant Cap

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:38161716

Part#: 92810625703

Ships in 4 Business Days

$ 11.99 USD

Add to Wish List

Qty

$ 11.99 USD

Add to Wish List

Rein Automotive OE Quality caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality caps keep the coolant system at the proper pressure, just like the OE cap.

Show More Show Less

OEM Rein Radiator Cap - E21 E24 E10 E12 E23 E28

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:7395

Part#: 17111100848

In Stock at Vendor

$ 11.99 USD

Add to Wish List

Qty

$ 11.99 USD

Add to Wish List

The radiator tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap. Often times, the coolant is not kept under enough pressure to keep it from boiling or expanding too much. This cap keeps all the heat and liquid inside the coolant system for maximum efficiency. Should be replaced each time major coolant system service is performed.

Show More Show Less

FAE Coolant Temperature Sensor

T#:10784

Part#: 62110788115

Ships in 1-2 days

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

INSTRUMENTS ENGINE COOLANT TEMP SENSOR 62110788115

FAE Temperature Sending Unit - Temperature Gauge (One Prong Spade Typ...

For vehicles with production date up top 09/1985

T#:596552

Part#: 62111268355

Ships in 4 Business Days

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

Rein Thermostat 80C - E30 325e, E28 535i, E24 633CSi

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:34114243

Part#: 11531710953

In Stock

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Thermostat 80C is a crucial component for controlling the temperature in BMW engines, ensuring optimal performance and protection. Designed to open at 80°C, this thermostat helps your engine reach its ideal operating temperature quickly while preventing overheating. Engineered specifically for BMW vehicles, the Thermostat 80C ensures precise temperature regulation, enhancing both engine efficiency and longevity. Available at Turner Motorsport, this direct-fit replacement offers easy installation and reliable performance.

Designed for BMW engines for a perfect fit
Opens at 80°C to regulate coolant flow and maintain optimal temperature
Prevents overheating and improves engine efficiency
Manufactured from high-quality, durable materials for long-lasting use
Direct-fit replacement ensures hassle-free installation
Enhances overall engine performance and longevity

The Thermostat 80C from Turner Motorsport is the perfect choice for BMW owners looking to maintain optimal engine temperature, ensuring smooth operation and extending the life of their vehicle.

Show More Show Less

Select Vehicle

Purpose

Category

Home

Cooling

Brand

View All Brands

Price

Special Offers

On Sale (5)

Shipping