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BMW Cooling System Parts & Accessories

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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High Performance Metal Water Pump & Pulley Kit - M54

10X Entries Into Our F80 M3 Sweepstakes

T#:55749612

Part#: 888010330KT3

In Stock

$ 299.99 USD

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$ 299.99 USD

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Thermostat Installation Kit with Thermostat - N54, N55, S55

10X Entries Into Our F80 M3 Sweepstakes

T#:55353595

Part#: OTN54.T85KT3

In Stock

$ 390.23 USD

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$ 390.23 USD

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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.

Basic Cooling System Service Kit - E9X M3 S65 - Dry

10X Entries Into Our F80 M3 Sweepstakes

T#:53891614

Part#: 17112283500KT

Ships in 1-2 days

$ 540.99

This product was last offered at the strikethrough price on
07-08-2026

$ 535.99 USD

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$ 535.99 USD

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European Fan kit - E36

10X Entries Into Our F80 M3 Sweepstakes

T#:56291051

Part#: 11522243303KT2

Ships on Feb 2, 2027

$ 132.12 USD

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$ 132.12 USD

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This Euro Fan & Clutch Package combines the proven Vaico 11 blade European Fan Blade with a robust URO Viscous Fan Clutch and mounting hardware to keep coolant temperatures under control when under heavy load.

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Oil Filter Housing Replacement Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:57507416

Part#: 11428642283KT4

In Stock

$ 361.99

This product was last offered at the strikethrough price on
10-21-2026

$ 343.99 USD

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$ 343.99 USD

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Maintain reliable oiling system performance and prevent catastrophic oil leaks on the street or track with an Oil Filter Housing Replacement Kit. Designed to replace failing or heat-warped factory housings, this complete assembly cures problematic oil leakage while ensuring proper oil flow through your engine's lubrication circuit. Bundled with a fresh oil pressure sensor, factory sealing gaskets, and new mounting hardware, this kit provides a complete overhaul solution to safeguard engine health and ensure precise oil pressure readings under extreme operating conditions.

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Cooling System Service Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:57507415

Part#: 11428642283KT3

In Stock

$ 458.99

This product was last offered at the strikethrough price on
10-21-2026

$ 440.99 USD

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$ 440.99 USD

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Eliminate common top end oil leaks and fragile plastic cooling components with the ultimate preventive maintenance package for your BMW. Designed for thorough maintenance or prep before track days, this kit pairs a new oil filter housing assembly with fresh gaskets and hardware to restore leak-free oil pressure management. To address vulnerable factory cooling lines, the package includes an upgraded ECS billet aluminum coolant flange, replacing the failure-prone OEM plastic fitting with a permanent metal solution. Bundled with factory Genuine BMW coolant, this service kit delivers peace of mind under extreme driving conditions.

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Value Coolant Hose Kit - F3x - N55

10X Entries Into Our F80 M3 Sweepstakes

T#:56507827

Part#: F3XN55CSRL0KT2

In Stock

$ 90.90 USD

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$ 90.90 USD

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Our Value Cooling Maintenance Kit addresses the three most notorious failure points in one shot before you end up stranded on the side of the road or worse, overheating your engine

N52 ECS Cooling System Refresh Kit - E8x E9x

10X Entries Into Our F80 M3 Sweepstakes

T#:59440849

Part#: TWTRPMPPIEBRPRKT

In Stock

$ 665.99 USD

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$ 665.99 USD

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Be sure your cooling system is up to the task

Cooling System Refresh Kit - Level 2 - E60 E61 N54

10X Entries Into Our F80 M3 Sweepstakes

T#:59257689

Part#: 171375429TMKT

Ships in 1-2 days

$ 1,665.99 USD

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$ 1,665.99 USD

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This cooling overhaul will cover just about everything you could replace on the 535's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N54 engine. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, 535 cooling hoses, and the BMW antifreeze

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Oil Filter And Cooler Kit - E36

10X Entries Into Our F80 M3 Sweepstakes

T#:56616386

Part#: E36OILCLRKT

Ships on Nov 10, 2026

$ 1,149.99 USD

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$ 1,149.99 USD

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We’ve curated the ultimate complete retrofit kit that adapts the legendary Euro S50 oil filter housing to your US spec M50, M52, S50, or S52 engine. Featuring an upgraded CSF Euro Spec all-aluminum oil cooler, custom mounting brackets, and all necessary OEM seals, lines, and conversion hardware

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Water Pump And Thermostat Kit with Coolant

10X Entries Into Our F80 M3 Sweepstakes

T#:55965857

Part#: 11517604027KT3

Ships on Nov 11, 2026

$ 493.39 USD

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$ 493.39 USD

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Engineered to OE standards, this comprehensive cooling system package integrates the water pump, aluminum thermostat assembly, critical replacement hardware, and factory specified fluid into a single kit.

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Water Pump Lvl 2 Kit - N57

10X Entries Into Our F80 M3 Sweepstakes

T#:58307537

Part#: 11518516205AKT

Ships on Jan 19, 2027

$ 397.99 USD

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$ 397.99 USD

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For Vehicles WITHOUT Active Steering (S217A) or Dynamic Drive (S2VPA). The Turner Water Pump Lvl 2 Kit for BMW N57 diesels restores thermal reliability. Factory N57 pumps and tensioners degrade, causing overheating and belt slippage. The Level 2 package resolves coolant leaks by integrating a replacement pump, 87-degree thermostat, drive assembly, and BMW Blue G48 antifreeze.

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Water Pump Lvl 2 Kit - N57 (S217A/S2VPA)

10X Entries Into Our F80 M3 Sweepstakes

T#:58307538

Part#: 11518516205BKT

Ships on Jan 19, 2027

$ 453.99

This product was last offered at the strikethrough price on
10-05-2026

$ 452.99 USD

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$ 452.99 USD

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For Vehicles WITH Active Steering (S217A) or Dynamic Drive (S2VPA). The Turner Water Pump Lvl 2 Kit for BMW N57 diesels restores thermal reliability. Factory N57 pumps and tensioners degrade, causing overheating and belt slippage. The Level 2 package resolves coolant leaks by integrating a replacement pump, 87-degree thermostat, drive assembly, and BMW Blue G48 antifreeze.

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High-Performance Cooling System Refresh Kit - Level 2 - E30 - M20 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:56291012

Part#: 008681LA02KT4

Back Ordered

Sale - Save 1% $ 1,173.99

This product was last offered at the strikethrough price on
10-08-2026

$ 1,167.84 USD

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Sale - Save 1%

$ 1,173.99

This product was last offered at the strikethrough price on
10-08-2026

$ 1,167.84 USD

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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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Automatic Transmission Thermostat Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:57122955

Part#: 17111438819KT2

Back Ordered

Sale - Save 2% $ 93.99

This product was last offered at the strikethrough price on
10-19-2026

$ 91.86 USD

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Sale - Save 2%

$ 93.99

This product was last offered at the strikethrough price on
10-19-2026

$ 91.86 USD

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Keeping your E53 X5 automatic transmission cool is essential for longevity and peak performance. The factory transmission thermostat circuit relies on plastic housings and o-ring seals that deteriorate over time. When the transmission thermostat fails or it's mounting assembly cracks, coolant loss follows putting your transmission at risk of overheating under load.

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High-Performance Cooling System Refresh Kit - Level 1 - E30 - M20 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:56291008

Part#: 008681LA02KT2

Back Ordered

Sale - Save 1% $ 772.99

This product was last offered at the strikethrough price on
10-08-2026

$ 767.24 USD

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Qty

Sale - Save 1%

$ 772.99

This product was last offered at the strikethrough price on
10-08-2026

$ 767.24 USD

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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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CSF OE Replacement Radiator

2X Entries Into Our F80 M3 Sweepstakes

T#:57340357

Part#: 4008

Ships in 4 Business Days

$ 115.99 USD

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$ 115.99 USD

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Engineered to handle elevated engine temperatures and rigorous driving, the CSF OEM Style Radiator delivers targeted thermal management for your cooling system. Built to strict ISO standards, this radiator provides precise bolt on fitment while utilizing high grade aluminum core

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Aluminum Radiator

2X Entries Into Our F80 M3 Sweepstakes

T#:54388384

Part#: 3430

In Stock

$ 202.99 USD

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$ 202.99 USD

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Keep your MINI’s engine operating at peak performance with this premium aluminum radiator upgrade. Designed to work flawlessly with your factory water pump, this unit maximizes thermal heat transfer by circulating coolant through an optimized horizontal core, utilizing advanced fin architecture to shed heat rapidly. It drops directly onto your factory core support rubber mounts and connects seamlessly to your upper and lower radiator hoses.

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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

T#:53608839

Part#: 8371

Ships in 4 Business Days

$ 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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