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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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Basic Cooling System Service Kit - E9X M3 S65 - Dry

T#:53891614

Part#: 17112283500KT

Ships in 3 Business Days

$ 540.99

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

$ 523.99 USD

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$ 523.99 USD

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Value Coolant Hose Kit - F3x - N55

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

High Performance Metal Water Pump & Pulley Kit - M54

T#:55749612

Part#: 888010330KT3

In Stock

$ 299.99 USD

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$ 299.99 USD

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Water Pump And Thermostat Kit with Coolant

T#:55965857

Part#: 11517604027KT3

In Stock

$ 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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Thermostat Installation Kit with Thermostat - N54, N55, S55

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.

European Fan kit - E36

T#:56291051

Part#: 11522243303KT2

Ships on Dec 8, 2026

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

T#:56291008

Part#: 008681LA02KT2

Back Ordered

$ 767.46 USD

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$ 767.46 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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Mishimoto Water Pump - BMW M50, M52, M54, S50, S52

T#:51075091

Part#: MMWP-M50-92

Ships in 4 Business Days

$ 72.99 USD

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$ 72.99 USD

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The Mishimoto Performance Water Pump provides the thermal stability required for modified engines.

Mishimoto Thermostat W/ Housing & Sensor - BMW M52, M54, M56 Engines ...

T#:51075086

Part#: MMTS-E46-99E

In Stock

$ 91.99 USD

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$ 91.99 USD

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The Mishimoto Thermostat Assembly focuses on precision fitment and long-term durability.

Mishimoto Water Pump - BMW E60, E82, E88, E89, E90, E92, E93 1 ...

T#:51075062

Part#: MMWP-N54-07

In Stock

$ 383.99 USD

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$ 383.99 USD

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The Mishimoto Electric Water Pump is the ideal choice for enthusiasts performing preventative maintenance or a full cooling system overhaul.

Mishimoto Engine Water Pump - BMW F22, F30, F31, F32, F34, F36 320i/3...

T#:51075060

Part#: MMWP-N20-12

In Stock

$ 382.99 USD

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$ 382.99 USD

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The Mishimoto BMW N20 Electric Water Pump provides a robust solution for maintaining the thermal efficiency of your BMW's cooling system.

Bremmen Upper Radiator Coolant Hose - BMW E70 E71 F15 F16 N55 3.0L ...

T#:50381391

Part#: 17127586774

In Stock

$ 69.99

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

$ 58.99 USD

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$ 58.99 USD

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Replacement coolant hose for your BMW that connects the oil filter housing and heater core pipe to the radiator. Replace old, leaking coolant hoses to prevent coolant loss and overheating.

Bremmen Coolant Hose - Cylinder Head to Expansion Tank Line - BMW F39...

T#:50381415

Part#: 17127646896

In Stock

$ 44.99

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

$ 32.99 USD

Limited Qty Sale

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$ 44.99

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

$ 32.99 USD

Limited Qty Sale

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Coolant hoses and the plastic connectors can crack over time, leading to coolant leaks. Eliminate coolant leaks with a brand new hose.

Coolant Hose - Lower Rear

T#:50521421

Part#: 17127535898

In Stock

Sale - Save 22% $ 40.99

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

$ 31.99 USD

Limited Qty Sale

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Sale - Save 22%

$ 40.99

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

$ 31.99 USD

Limited Qty Sale

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Water/Coolant Pump With Support

T#:49648357

Part#: 11518650988

In Stock

Sale - Save 17% $ 234.99

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

$ 195.99 USD

Limited Qty Sale

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Qty

Sale - Save 17%

$ 234.99

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

$ 195.99 USD

Limited Qty Sale

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Electronic Thermostat And Coolant Distribution Module

T#:50311455

Part#: 11538843406

In Stock

$ 397.99

This product was last offered at the strikethrough price on
08-05-2026

$ 250.99 USD

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$ 250.99 USD

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Mishimoto Oil Line Fitting Kit - BMW F80, F82, F83, F87 (M2 Competiti...

T#:51075080

Part#: MMOCF-F80

Ships in 4 Business Days

$ 100.99 USD

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$ 100.99 USD

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The Mishimoto S55 Oil Line Fitting is a robust upgrade designed for the rigorous demands of competitive racing.

Mishimoto Racing Thermostat & Housing - BMW F8X M2, M3, M4

T#:51075075

Part#: MMTS-F80-15

Ships in 4 Business Days

$ 139.99 USD

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$ 139.99 USD

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The Mishimoto S55 Racing Thermostat provides superior thermal control compared to standard equipment.

Bremmen Lower Radiator Coolant Hose - E70 E71 F15 F16 N63

T#:50381401

Part#: 17127576358

Ships in 1-2 days

Sale - Save 3% $ 85.67

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

$ 83.10 USD

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Sale - Save 3%

$ 85.67

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

$ 83.10 USD

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Connects the lower radiator to the water pump Replace leaking hoses to prevent coolant loss and overheating

Meyle Coolant Expansion Tank - BMW G0X X3 X4, F9X X3M X4M

T#:50066859

Part#: 17135A6A030

In Stock

$ 75.99 USD

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$ 75.99 USD

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Replaces cracked or aged coolant expansion tank.

Water Pump - Metal Impeller

T#:55030824

Part#: 11517550484

Ships on Oct 23, 2026

$ 47.99 USD

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$ 47.99 USD

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Coolant Thermostat - Includes Sealing Gasket

T#:54852031

Part#: 028 280 0004

Ships on Oct 30, 2026

$ 11.99 USD

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$ 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.

Coolant Expansion Tank

T#:54959296

Part#: 314 223 0004

Ships on Oct 30, 2026

$ 75.99 USD

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$ 75.99 USD

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This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.

Electric Water Pump

T#:54959291

Part#: 313 220 0018

Ships on Oct 30, 2026

$ 96.99 USD

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$ 96.99 USD

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This mechanical water pump from Meyle is engineered to maintain optimal engine temperatures by driving consistent, efficient coolant circulation.

Coolant Hose - Expansion Tank To Distributor & Cylinder Head ...

T#:56471653

Part#: 17125A05950

Special Order: No Guaranteed ETA

$ 31.99 USD

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$ 31.99 USD

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This Febi Bilstein Coolant Pipe is built to uphold the cooling demands of your vehicle, whether you're commuting daily or pushing performance on open roads.

Water Pump With Belt Pulley & Seals

T#:56507841

Part#: 11518638026

Special Order: No Guaranteed ETA

$ 121.99 USD

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$ 121.99 USD

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Engineered for ultimate durability, the Febi Bilstein replacement switchable water pump is built to protect your BMW’s B46 or B48 power plant.

Thermostat With Housing & Gasket

T#:56544033

Part#: 11537586885

Special Order: No Guaranteed ETA

$ 68.99 USD

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$ 68.99 USD

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This Febi Bilstein electronic coolant thermostat assembly delivers factory-level thermal control to keep coolant temperatures stable across varying engine loads.

Mechanical Water Pump With Gasket

T#:56471663

Part#: 11518678905

Special Order: No Guaranteed ETA

$ 56.99 USD

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$ 56.99 USD

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Restore proper coolant circulation and protect your engine against heat soaking with this precision replacement water pump from Febi Bilstein.

Thermostat With Housing

T#:56001956

Part#: 11538635689

Special Order: No Guaranteed ETA

$ 126.99 USD

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$ 126.99 USD

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This Febi Bilstein thermostat assembly is the perfect solution for maintaining correct cooling system pressures and temperatures on the street or the track.

Thermostat Housing With Sealing Ring

T#:56616332

Part#: 1151860136X

Special Order: No Guaranteed ETA

$ 64.99 USD

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$ 64.99 USD

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Maintain consistent temperatures both on the street or pushing your vehicle on the track with this OEM-quality thermostat housing from Febi Bilstein.

Mechanical Water Pump

T#:56471651

Part#: 11518632585

Special Order: No Guaranteed ETA

$ 67.99 USD

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$ 67.99 USD

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This water pump is manufactured to match original equipment standards, offering a drop-in replacement.

Coolant Expansion Tank Cap

T#:56001934

Part#: 46221

Special Order: No Guaranteed ETA

$ 19.99 USD

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$ 19.99 USD

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This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.

Water Pump With Gasket

T#:56218609

Part#: 11517586779

Special Order: No Guaranteed ETA

$ 113.99 USD

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$ 113.99 USD

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Protect your BMW V8 against thermal stress and overheating with this heavy-duty water pump from Febi Bilstein.

Thermostat With Housing, Seal And Temp Sensor

T#:56291021

Part#: 11537647305

Special Order: No Guaranteed ETA

$ 132.99 USD

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$ 132.99 USD

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This Febi Bilstein Thermostat Assembly provides OE-level thermal precision to keep your cooling system operating exactly as it should.

Electromagnetic Water Pump With Bolts

T#:56291026

Part#: 178011

Special Order: No Guaranteed ETA

$ 879.99 USD

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$ 879.99 USD

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Restore the cooling precision of your BMW with this OEM-spec Febi Bilstein replacement electric water pump.

Coolant Expansion Tank

T#:56544003

Part#: 17138677649

Special Order: No Guaranteed ETA

$ 82.99 USD

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$ 82.99 USD

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Prevent catastrophic track-day or daily-driving overheating with this OEM-spec replacement Coolant Expansion Tank by Febi Bilstein.

Coolant Expansion Tank

T#:56544004

Part#: 17135A6A030

Special Order: No Guaranteed ETA

$ 82.99 USD

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$ 82.99 USD

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This Febi Bilstein coolant expansion tank delivers the strength and exact fitment needed to keep your BMW's cooling system locked down.

Upper Radiator Coolant Hose

T#:56218581

Part#: 11537516414

Special Order: No Guaranteed ETA

$ 6.99 USD

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$ 6.99 USD

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This Febi Bilstein upper radiator hose is designed to restore factory-level cooling efficiency with precision tolerances.

Coolant Hose With Quick Connects - Thermostat To Radiator

T#:56471619

Part#: 17117524710

Special Order: No Guaranteed ETA

$ 17.99 USD

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$ 17.99 USD

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This Febi Bilstein thermostat-to-radiator coolant hose provides the exact fit and durability required to keep your BMW’s operating temperatures strictly regulated.

Coolant Expansion Tank

T#:56544005

Part#: 17139846642

Special Order: No Guaranteed ETA

$ 83.99 USD

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$ 83.99 USD

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Protect your modern BMW from catastrophic thermal overload with the Febi Bilstein coolant expansion tank.

Coolant Expansion Tank

T#:56507814

Part#: 17137642160

Special Order: No Guaranteed ETA

$ 62.99 USD

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$ 62.99 USD

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This Febi Bilstein coolant expansion tank offers OEM quality, engineered to withstand aggressive driving, high thermal loads, and pressurized environments.

Coolant Hose With Quick Connectors - Engine To Engine Cooler ...

T#:56471652

Part#: 17127619684

Special Order: No Guaranteed ETA

$ 48.99 USD

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$ 48.99 USD

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This upper left radiator coolant hose by Febi Bilstein offers an OE-quality replacement designed to restore structural integrity and fluid flow.

Bolt For Water Pump

T#:56724732

Part#: 11517602123

Special Order: No Guaranteed ETA

$ 2.99 USD

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$ 2.99 USD

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This Febi Bilstein water pump screw offers superior durability designed to maintain consistent clamping pressure under high thermal loads.

Meyle Engine Coolant Thermostat - BMW FXX, GXX

T#:52797701

Part#: 3282280016

Special Order: No Guaranteed ETA

$ 47.99 USD

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$ 47.99 USD

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This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.

Coolant Thermostat

T#:55461389

Part#: 11537549476

Special Order: No Guaranteed ETA

$ 81.99 USD

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$ 81.99 USD

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This Meyle coolant thermostat provides a refresh for your thermal management system, keeping your engine operating exactly where the engineers intended.

Meyle Water Pump - Engine Cooling - BMW EXX, FXX

T#:52621854

Part#: MWP0663

Special Order: No Guaranteed ETA

$ 284.99 USD

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$ 284.99 USD

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For BMW technicians and DIY enthusiasts, the MEYLE MWP0663 water pump represents a reliable solution for cooling system overhauls.

Coolant Expansion Tank

T#:55569540

Part#: 17137823626

Special Order: No Guaranteed ETA

$ 74.99 USD

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$ 74.99 USD

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Coolant Flange - Rear/Engine Block

T#:55533481

Part#: 11531708808

Special Order: No Guaranteed ETA

$ 9.99 USD

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$ 9.99 USD

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This Meyle Original-grade replacement coolant flange is the perfect solution for refreshing your BMW’s cooling plumbing back to factory-fresh operation.

Meyle Water Pump - Engine Cooling - BMW FXX

T#:52621849

Part#: MWP0662

Special Order: No Guaranteed ETA

$ 265.99 USD

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$ 265.99 USD

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Maintain your BMW’s cooling efficiency with the Meyle MWP0662 Water Pump.

Auxiliary Electric Water Pump

T#:57014181

Part#: 64116913489

Special Order: No Guaranteed ETA

$ 75.99 USD

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$ 75.99 USD

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Keep your heating and cooling systems performing sharply with a precision-fit replacement built for long-haul reliability.

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