BMW Cooling System Parts & Accessories for BMW 3 Series E30 (1984-1991)

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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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Turner Motorsport - Corporate Logo
T#:57543703
Part#: 059198LA03KT
Ships in 1 day
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$ 62.99 USD
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Upgrade your cooling system setup with our Heavy Duty Radiator Mounting Brackets, engineered to deliver maximum structural support and a refined engine-bay aesthetic. After decades of heat cycles and hard driving, your E30's factory plastic mounts inevitably become brittle, faded, and prone to cracking, risking damage to your radiator. Our radiator mount upgrade completely replaces those tired OEM units with a high-strength alternative built to handle the rigors of spirited driving, track days, and engine swaps. Whether you are performing a full cooling system refresh or executing an M5X swap that utilizes an E36-style radiator, these brackets provide the ideal balance of precision fitment and rugged dependability.

Crafted with a premium brushed stainless steel finish, this kit does more than secure your radiator; it radically improves the visual appeal under the hood by swapping out cheap, weathered plastic for durable steel hardware. Designed as a true direct bolt-on solution, the brackets align seamlessly with factory mounting locations, eliminating the need for frustrating custom fabrication, cutting, or drilling. They clamp down firmly to eliminate unwanted radiator movement, ensuring your cooling stack remains locked in place under heavy vibration.

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High-Performance Cooling System Refresh Kit - Level 1 - E30 - M20 ...
For Vehicles with a Production Date from 09/1987
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56291008
Part#: 008681LA02KT2
Back Ordered
New Item
Sale - Save 1% $ 767.99

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

$ 763.94 USD
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Sale - Save 1%
$ 767.99

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

$ 763.94 USD
Free Shipping

In as little as 60,000 miles, cooling system components are prone to failure. Due to weak plastic and rubber construction, vital cooling system parts—such as the radiator hoses and the expansion tank—can fail spectacularly, risking damage to internal engine components.

Prevent costly engine damage and ensure long-term reliability with our Performance Cooling System Refresh Kit, featuring components hand-picked by our team of BMW enthusiasts. This comprehensive kit includes high-quality components designed to address common failure points, providing a durable, performance-focused cooling system repair. By replacing aging factory parts with premium alternatives, you can enhance cooling efficiency and protect your engine from the stress of overheating.

This full-service "Level 1" Performance Cooling System Refresh Kit includes:

Turner Motorsport Heavy Duty Aluminum Expansion Tank OE Expansion Tank Cap OE Coolant Level Sensor Silicone Coolant Overflow Hose OE Radiator Hoses Mishimoto Racing Thermostat (68°C) Geba Water Pump w/ Aluminum Impeller OEM Timing Belt Kit with Tensioner Radiator Drain Plug Genuine BMW G48 Antifreeze (1 Gallon) Redline Water Wetter Performance Coolant Additive (12 oz.)

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High-Performance Cooling System Refresh Kit - Level 2 - E30 - M20 ...
For Vehicles with a Production Date from 09/1987
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56291012
Part#: 008681LA02KT4
Back Ordered
New Item
$ 1,168.99

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

$ 1,164.54 USD
$ 1,164.54 USD

In as little as 60,000 miles, cooling system components are prone to failure. Due to weak plastic and rubber construction, vital cooling system parts—such as the radiator hoses and the expansion tank—can fail spectacularly, risking damage to internal engine components.

Prevent costly engine damage and ensure long-term reliability with our Performance Cooling System Refresh Kit, featuring components hand-picked by our team of BMW enthusiasts. This comprehensive kit includes high-quality components designed to address common failure points, providing a durable, performance-focused cooling system repair. By replacing aging factory parts with premium alternatives, you can enhance cooling efficiency and protect your engine from the stress of overheating.

This full-service "Level 2" Performance Cooling System Refresh Kit includes:

Turner Motorsport Heavy Duty Aluminum Expansion Tank OE Expansion Tank Cap OE Coolant Level Sensor Silicone Coolant Overflow Hose ECS Tuning Aluminum Radiator OE Radiator Hoses Mishimoto Racing Thermostat (68°C) Geba Water Pump w/ Aluminum Impeller OEM Timing Belt Kit with Tensioner Radiator Drain Plug Genuine BMW G48 Antifreeze (1 Gallon) Redline Water Wetter Performance Coolant Additive (12 oz.)

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Wahler - Corporate Logo
T#:54388511
Part#: 11537511580
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$ 59.99 USD
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75°C variant is specifically calibrated for track racing, forced-induction builds, or hot-climate competitive environments

Coolant Thermostat - Includes Sealing Gasket
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54852031
Part#: 028 280 0004
In Stock
New Item
$ 11.99 USD
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This Meyle-Original replacement thermostat is a direct-fit solution designed to maintain a rock-solid, factory-correct 80°C operating temperature.
CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
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$ 499.00 USD
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$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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Genuine BMW - Corporate Logo
T#:55317676
Part#: 11531CKT
Ships in 1 Business Day
New Item
$ 74.07 USD
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Preventative cooling system maintenance is vital, and this complete hose and clamp overhaul kit is designed to eliminate weak points before they fail.
Genuine BMW - Corporate Logo
T#:55317654
Part#: 1153CRKKT
Ships in 5 Business Days
New Item
$ 56.52 USD
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Whether you’re maintaining an iconic E30 318i or keeping your daily driver running cool, Turner Motorsport has you covered with this direct-fit Cooling Replacement Kit.

E30 Coolant Expansion Tank
For vehicles with production date from 09/1987
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57507437
Part#: 17111712641
Ships on Jan 6, 2027
New Item
$ 49.99 USD
$ 49.99 USD

CoolXPert - Corporate Logo
T#:57616355
Part#: 17111709312
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$ 78.99 USD
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