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Bremmen Parts 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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Bremmen Intercooler Coolant Hose - Auxiliary Water Pump to Expansion ...

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T#:697879

Part#: 17127591512

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Replacement coolant hose that connects the expansion tank to the auxiliary water pump. Replace your old hose to prevent coolant loss and overheating.

Radiator to Transmission Cooler Hose - F01 and F02 7 Series

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T#:22525964

Part#: 17227575387

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$ 54.41 USD

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Replace brittle or failing coolant hoses! For 760i, 750i, 750Li, and 750LiX.

Water Hose for Transmission Cooler Lower Fitting - F01 F02 7 Series ...

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T#:22525962

Part#: 17127575429

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Replace your failing coolant hoses! For 750i, 750Li, and 750LiX equipped with the N63 engine.

Thermostat With Housing - 105C

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T#:15511816

Part#: 11531436386

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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.

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Water Pipe

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T#:39295542

Part#: 11537545890

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$ 17.33 USD

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Coolant Hose

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T#:36811808

Part#: 17122754573

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$ 18.76 USD

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Thermostat - 105C

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T#:15511827

Part#: 11537502779

Ships on Oct 22, 2026

$ 46.99

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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

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Oil Cooler Thermostat

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T#:15511834

Part#: 17107558267

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09-16-2026

$ 31.49 USD

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Replace a failing thermostat with an OE replacement to get your car back up and running great again!

Coolant Expansion Tank

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T#:45723154

Part#: 17137642158

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Bremmen Parts Coolant Hose - E9X N52

10X Entries Into Our F80 M3 Sweepstakes

T#:38621425

Part#: 11537521049

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$ 14.68 USD

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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.

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Thermostat With Housing

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T#:15511820

Part#: 11537580627

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$ 60.13 USD

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The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat. If the thermostat gets stuck closed, it allows no fluid to flow and ends up overheating the coolant already in the engine. To fix this problem and get your vehicle's heat restored, replace your thermostat. Complete assembly, including housing.

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Thermostat Housing Kit

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T#:26538322

Part#: 11537512733-M

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$ 43.24 USD

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Thermostat Housing

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T#:15511821

Part#: 11537586784

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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

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Bremmen Engine Fan Blade - 11 Blades, 420mm - BMW M30 S38 M50 M52 S5...

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T#:640149

Part#: 11521712058

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This fan is driven by the serpentine belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many pieces. Be sure to get a new fan clutch, while you are replacing this.

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Coolant Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:36811804

Part#: 11537629401

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$ 65.27 USD

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Coolant Hose - Lower

10X Entries Into Our F80 M3 Sweepstakes

T#:48125816

Part#: 17127596838

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Connects the radiator to the thermostat.

Maintain optimal cooling performance with this high-quality Lower Radiator Hose (17127596838), built to match OEM dimensions for a seamless fit on your BMW. Designed to handle high heat and constant pressure, it ensures consistent coolant flow from the radiator to the thermostat housing. Perfect for preventative maintenance or replacing a failing hose, this direct-fit component helps safeguard your engine from overheating and keeps your cooling system operating at peak efficiency.

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Radiator Hose - Lower

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T#:39295543

Part#: 11531726344

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$ 17.94 USD

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MINI R50 R52 W10 Radiator Hose Lower

10X Entries Into Our F80 M3 Sweepstakes

T#:28171512

Part#: 17127559476

Ships in 9 Business Days

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$ 9.68 USD

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MINI R50 R52 W10 Radiator Hose Lower: Keep Your Engine Cool

Precision-engineered for a perfect fit
High-quality materials ensure durability
Resistant to heat and corrosion
Direct replacement for easy installation

Ensure optimal engine cooling with the MINI R50 R52 W10 Radiator Hose Lower. This radiator hose is precision-engineered for a perfect fit on your MINI R50 R52 W10 model, guaranteeing efficient coolant flow. Crafted from high-quality materials, it offers exceptional durability and is resistant to heat and corrosion. Plus, it's a direct replacement part, making installation quick and hassle-free.

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Coolant Expansion Tank

10X Entries Into Our F80 M3 Sweepstakes

T#:53044121

Part#: 17137601948

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$ 62.04 USD

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MINI F5X F6X Expansion Tank

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T#:28138156

Part#: 17137617362

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$ 77.51 USD

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MINI F5X F6X Expansion Tank

For Mini owners looking to maintain optimal engine performance, the MINI F5X F6X Expansion Tank is an essential component. This expansion tank ensures proper cooling system functionality, preventing overheating and potential engine damage. Crafted with high-quality materials, it guarantees durability and reliability for long-term use, providing peace of mind to Mini enthusiasts.

Ensures proper cooling system functionality
Prevents overheating and potential engine damage
Crafted with high-quality materials for durability
Provides peace of mind to Mini enthusiasts

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Heater Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:38621423

Part#: 64218376999

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$ 16.31 USD

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Coolant Hose - Supply Line

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T#:30729021

Part#: 17127546064

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$ 43.24 USD

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Radiator Fan Housing

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T#:26904929

Part#: 17101475577

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$ 80.42 USD

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Temperature Sensor For Coolant

10X Entries Into Our F80 M3 Sweepstakes

T#:586678

Part#: 13621486698

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$ 28.68 USD

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Bremmen Parts Auxiliary Water Pump Hose - E53

10X Entries Into Our F80 M3 Sweepstakes

T#:1195928

Part#: 11537505949

Back Ordered

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$ 106.85 USD

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Used for the additional water pump

Vent Hose

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T#:39295552

Part#: 17127576363

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$ 22.02 USD

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