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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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Cooling Fan Shroud - E60, E61, E65

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T#:22525965

Part#: 17427514560

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05-03-2026

$ 199.85 USD

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Direct replacement for cracked or broken cooling fan shroud. Found on 525i, 525xi, 530i, 530xi, 745i.

Coolant Return Hose - E60, E61, E63, E64

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T#:22525961

Part#: 17127542207

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$ 111.99

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05-08-2026

$ 108.99 USD

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Replaces the coolant return hose found on 525i, 530i, and 630i.

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

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T#:697879

Part#: 17127591512

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05-03-2026

$ 67.27 USD

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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.

Hose Clamp - 40mm-60mm

10X Entries Into Our F80 M3 Sweepstakes

T#:5227

Part#: 040-60T

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$ 3.99 USD

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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.

Features:

9mm band width

6mm hex & slotted head

Smooth inside of band = optimal hose protection

OEM

430 Stainless steel band and housing with zinc plated steel screw

Asymmetric housing = even distribution of forces and prevents tilting of the clamp when tightening

Screw support = ease of assembly due to the safe guidance of the emerging band

Short housing saddle = even contact pressure = improved efficiency

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Thermostat With Housing - 105C

10X Entries Into Our F80 M3 Sweepstakes

T#:15511816

Part#: 11531436386

Ships in 8 Business Days

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$ 29.67 USD

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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

10X Entries Into Our F80 M3 Sweepstakes

T#:39295542

Part#: 11537545890

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05-03-2026

$ 17.33 USD

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Coolant Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:36811808

Part#: 17122754573

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05-30-2026

$ 18.76 USD

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Bremmen Parts Coolant Hose - E9X N52

10X Entries Into Our F80 M3 Sweepstakes

T#:38621425

Part#: 11537521049

In Stock

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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 - 105C

10X Entries Into Our F80 M3 Sweepstakes

T#:15511827

Part#: 11537502779

Ships on Oct 22, 2026

$ 46.99

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05-03-2026

$ 45.99 USD

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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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Coolant Expansion Tank

10X Entries Into Our F80 M3 Sweepstakes

T#:45723154

Part#: 17137642158

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Sale - Save 25% $ 67.99

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05-03-2026

$ 50.99 USD

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$ 50.99 USD

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Water Pump Bolt

10X Entries Into Our F80 M3 Sweepstakes

T#:15478736

Part#: 11 510392553

Ships on Oct 22, 2026

$ 5.99 USD

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Secures the water pump in place.

Thermostat Housing Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:26538322

Part#: 11537512733-M

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$ 43.24 USD

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Water Pump - Metal Impeller

10X Entries Into Our F80 M3 Sweepstakes

T#:55030824

Part#: 11517550484

Ships on Oct 23, 2026

$ 47.99 USD

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$ 47.99 USD

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MINI W11 Distribution Piece - Brass With Clamps

10X Entries Into Our F80 M3 Sweepstakes

T#:13793010

Part#: 17127518613KT

Ships on Oct 26, 2026

$ 26.99 USD

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$ 26.99 USD

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MINI W11 Distribution Piece - Brass With Clamps

Upgrade your MINI's coolant system with the MINI W11 Distribution Piece - Brass With Clamps, a durable component designed to improve coolant distribution and prevent leaks.

Benefits:

High-quality brass construction ensures durability and longevity
Provides efficient distribution of coolant to various engine components
Includes clamps for secure installation
Helps prevent coolant leaks and overheating issues

Upgrade your MINI's coolant system with the MINI W11 Distribution Piece - Brass With Clamps for improved performance and reliability.

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Thermostat Housing

10X Entries Into Our F80 M3 Sweepstakes

T#:15511821

Part#: 11537586784

Special Order: No Guaranteed ETA

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$ 77.59 USD

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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...

10X Entries Into Our F80 M3 Sweepstakes

T#:640149

Part#: 11521712058

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Sale - Save 22% $ 23.99

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$ 18.76 USD

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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 - Lower

10X Entries Into Our F80 M3 Sweepstakes

T#:48125816

Part#: 17127596838

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$ 26.34 USD

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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

10X Entries Into Our F80 M3 Sweepstakes

T#:39295543

Part#: 11531726344

In Stock

Sale - Save 22% $ 22.99

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

$ 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

Sale - Save 5% $ 10.19

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

$ 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

In Stock

Sale - Save 15% $ 72.99

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05-03-2026

$ 62.04 USD

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MINI F5X F6X Expansion Tank

10X Entries Into Our F80 M3 Sweepstakes

T#:28138156

Part#: 17137617362

Special Order: No Guaranteed ETA

Sale - Save 5% $ 81.99

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05-03-2026

$ 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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Radiator Fan Clutch

10X Entries Into Our F80 M3 Sweepstakes

T#:57304041

Part#: 11527831619

Ships on Dec 29, 2026

$ 75.99 USD

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$ 75.99 USD

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Heater Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:38621423

Part#: 64218376999

In Stock

Sale - Save 22% $ 20.99

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

$ 16.31 USD

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Coolant Hose - Supply Line

10X Entries Into Our F80 M3 Sweepstakes

T#:30729021

Part#: 17127546064

Special Order: No Guaranteed ETA

Sale - Save 21% $ 54.99

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$ 43.24 USD

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Radiator Fan Housing

10X Entries Into Our F80 M3 Sweepstakes

T#:26904929

Part#: 17101475577

Special Order: No Guaranteed ETA

Sale - Save 5% $ 84.99

This product was last offered at the strikethrough price on
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$ 80.42 USD

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$ 84.99

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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

Special Order: No Guaranteed ETA

Sale - Save 4% $ 29.99

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$ 28.68 USD

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Vent Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:39295552

Part#: 17127576363

Special Order: No Guaranteed ETA

Sale - Save 21% $ 27.99

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$ 22.02 USD

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$ 27.99

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$ 22.02 USD

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Bremmen Parts Thermostat Assembly - E38, E39

10X Entries Into Our F80 M3 Sweepstakes

T#:388457

Part#: 11531437526

Back Ordered

$ 64.99 USD

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Comes with aluminum housing, o-ring & sensor

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