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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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Water Pump - N20 N26
Water Pump - N20 N26
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:29666093
Part#: 11518635089
In Stock
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This product was last offered at the strikethrough price on
05-03-2026

$ 275.19 USD
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$ 343.99

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A failing water pump can show early warning signs like coolant leaks or a whining noise from the engine bay—but with electric water pumps, failure can be sudden, often with no warning beyond rapid overheating.

If you suspect your water pump is on its way out, prompt replacement is critical to avoid engine damage. Stay alert to any changes in cooling system performance.

Note: Aluminum mounting bolts are single-use and must be replaced during installation.

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Rein Water Hose With Metal Flange - F-Chassis - N55
Rein Water Hose With Metal Flange - F-Chassis - N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750147
Part#: CHU0632
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$ 52.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Rein Water Hose Problem Solver Kit - F chassis N55
Rein Water Hose Problem Solver Kit - F chassis N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750119
Part#: 11537598237
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$ 26.99 USD
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Rein's Rubber Elbow Problem Solver Kit for the Coolant Feed Hose Replaces the Rubber End of the Hard Feed Line Without Having to Move the Exhaust or Replace the Entire Hard Line
Genuine BMW Locking Plug - E30 325e 325es 325i
Genuine BMW Locking Plug - E30 325e 325es 325i
Genuine BMW - Corporate Logo
T#:30617
Part#: 11111285395
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$ 26.62 USD
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$ 32.99

This product was last offered at the strikethrough price on
05-02-2026

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Genuine BMW Cover Lid -
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20

Genuine BMW Heater Hose
Genuine BMW Heater Hose
Genuine BMW - Corporate Logo
T#:14120
Part#: 64218363198
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Sale - Save 21% $ 45.99

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$ 36.50 USD
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$ 45.99

This product was last offered at the strikethrough price on
05-02-2026

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BMW Hose F Water Valve And Radiator -
This item fits the following BMW Chassis:
E46

Genuine BMW Expansion Tank to Upper Radiator Hose - E90 335d
Genuine BMW Expansion Tank to Upper Radiator Hose - E90 335d ...
Genuine BMW - Corporate Logo
T#:46422
Part#: 17127803838
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 43.07 USD
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$ 55.99

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Genuine BMW Hose, Fork To Expansion Tank -
This item fits the following BMW Chassis:
E90

Fits BMW Engines including:
M57

COOLANT PUMP, MECHANICAL
COOLANT PUMP, MECHANICAL
Genuine BMW - Corporate Logo
T#:606629
Part#: 11517619303
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$ 239.85 USD
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$ 282.99

This product was last offered at the strikethrough price on
05-06-2026

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If you are dealing with coolant leaks, rising temps, and other similar issues, it's probably time to consider replacing your water pump.
Coolant Return Line
Coolant Return Line
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53856300
Part#: 11538650087
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$ 60.99 USD
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Rein Automotive turbo hoses are engineered to meet these rigorous demands, providing the reliability required for both the track and the street.
Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55
Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750144
Part#: CHU0629
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$ 56.99 USD
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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks
Rein Engine Coolant Reservoir - BMW G1X, G3X
Rein Engine Coolant Reservoir - BMW G1X, G3X
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516268
Part#: EPT0274
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$ 114.99 USD
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Protect your BMW investment with the Rein EPT0274 Engine Coolant Reservoir, the professional’s choice for cooling system restoration.
Hex Bolt & Washer Kit
Hex Bolt & Washer Kit
Genuine BMW - Corporate Logo
T#:55245856
Part#: 0711990XXKTKT
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$ 35.31 USD
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Turner Motorsport offers this Genuine BMW Hex Bolt and Washer Kit to keep your chassis maintenance or engine refresh completely up to factory standard.
Genuine BMW Auxiliary fan - Z3 2.5 2.8 M Coupe M Roadster
Genuine BMW Auxiliary fan - Z3 2.5 2.8 M Coupe M Roadster
Genuine BMW - Corporate Logo
T#:152593
Part#: 64542228432
In Stock
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 858.32 USD
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$ 927.99

This product was last offered at the strikethrough price on
08-25-2026

$ 858.32 USD
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Genuine BMW ADDITIONAL FAN
Auxilary Water Pump for Heating System - E34 E32
Auxilary Water Pump for Heating System - E34 E32
Genuine BMW - Corporate Logo
T#:338205
Part#: 64118390063
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Starting at $ 304.99 USD
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Starting at $ 304.99 USD
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The auxiliary water pump helps to move coolant through the heating system. Sometime the unit can develop leaks or the pump itself may fail.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
3/1990-1995 E34 BMW 525i 530i 535i 540i M5
1988-1994 E32 BMW 735i 735il 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
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Genuine BMW Replacement Radiator
Genuine BMW Replacement Radiator
Up to model year 07/2017
Genuine BMW - Corporate Logo
T#:625190
Part#: 17118743664
In Stock
Sale - Save 19% $ 787.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 640.00 USD
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$ 787.99

This product was last offered at the strikethrough price on
08-25-2026

$ 640.00 USD
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Radiator Hose Gasket - Pack Of 5
Radiator Hose Gasket - Pack Of 5
Genuine BMW - Corporate Logo
T#:577278
Part#: 11537545302KT
In Stock
Sale - Save 12% $ 90.99

This product was last offered at the strikethrough price on
07-12-2026

$ 80.00 USD
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$ 90.99

This product was last offered at the strikethrough price on
07-12-2026

$ 80.00 USD
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Genuine BMW Heater & A/c Return Hose 64211361180
Genuine BMW Heater & A/c Return Hose 64211361180
Genuine BMW - Corporate Logo
T#:11066
Part#: 64211361180
In Stock
Sale - Save 72% $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 11.00 USD
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$ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 11.00 USD
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GENUINE BMW HEATER & A/C RETURN HOSE 64211361180.--

This item fits the following BMWs:
BMW 3 Series - 3.0/Bavaria

--.
Genuine BMW Module Carrier - 17117631474 - E71,F15,F16
Genuine BMW Module Carrier - 17117631474 - E71,F15,F16
Genuine BMW - Corporate Logo
T#:174446
Part#: 17117631474
In Stock
Sale - Save 70% $ 200.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 59.98 USD
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This product was last offered at the strikethrough price on
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Genuine BMW Module Carrier -
This item fits the following BMW Chassis:
E71,F15,F16

Fits BMW Engines including:
N63,N63N

Bracket Additional Water Pump - F01, F02, F06, F07, F10, F12, F13
Bracket Additional Water Pump - F01, F02, F06, F07, F10, F12, F13 ...
Genuine BMW - Corporate Logo
T#:46043
Part#: 17117603070
In Stock
Sale - Save 49% $ 59.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.34 USD
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$ 59.99

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05-02-2026

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Genuine BMW Bracket Additional Water Pump -
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N,S63N

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Rein Engine Inlet To Changeover Valve Hose
Rein Engine Inlet To Changeover Valve Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903280
Part#: 17128616914
In Stock at Vendor
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$ 45.99 USD
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$ 45.99 USD
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This Rein Automotive coolant hose is an exact-fit aftermarket solution for the BMW "By-Pass Hose".
Genuine BMW Cooling Vent Hose - E38 750iL M73 5.4L
Genuine BMW Cooling Vent Hose - E38 750iL M73 5.4L
Genuine BMW - Corporate Logo
T#:35870
Part#: 11531440104
In Stock
Sale - Save 75% $ 40.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 10.26 USD
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$ 40.99

This product was last offered at the strikethrough price on
05-02-2026

$ 10.26 USD
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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E38

Fits BMW Engines including:
M73N

Genuine BMW Engine Water Hose 11531709050
Genuine BMW Engine Water Hose 11531709050
Genuine BMW - Corporate Logo
T#:14575
Part#: 11531709050
In Stock
Sale - Save 59% $ 39.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.38 USD
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$ 39.99

This product was last offered at the strikethrough price on
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GENUINE BMW WATER HOSE
Rein Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B58
Rein Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55965839
Part#: 17138610661
Ships in 4 Business Days
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$ 56.99 USD
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$ 56.99 USD
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Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.
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Radiator Lower Support & Bushing Kit
Radiator Lower Support & Bushing Kit
Genuine BMW - Corporate Logo
T#:55317651
Part#: 171178RLSKT
Ships in 2 Business Days
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$ 56.33 USD
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$ 56.33 USD
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Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.
Rein Coolant Temperature Sensor - BMW E6X, E7X, E9X
Rein Coolant Temperature Sensor - BMW E6X, E7X, E9X
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516266
Part#: ELC0090
Ships in 4 Business Days
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$ 69.99 USD
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The Rein ELC0090 is a critical component for BMW N52-series engines, replacing the often-ignored "angle connector" located beneath the intake manifold.
Coolant Hose & Hardware Refresh Kit
Coolant Hose & Hardware Refresh Kit
Genuine BMW - Corporate Logo
T#:55317676
Part#: 11531CKT
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$ 74.07 USD
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$ 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.
Rein Water Hose with Metal Flange - E60, E61 - N54
Rein Water Hose with Metal Flange - E60, E61 - N54
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750141
Part#: CHU0460
Ships in 4 Business Days
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$ 52.99 USD
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$ 52.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55 ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53820908
Part#: CHE0985
Ships in 4 Business Days
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$ 73.99

This product was last offered at the strikethrough price on
07-09-2026

$ 25.99 USD
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$ 25.99 USD
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The Rein coolant hose elbow is a targeted engineering solution designed to bypass the flaws of the factory assembly. By isolating the failure prone rubber section, it allows for replacement without disturbing the exhaust manifold or cylinder head connections. This is the strategic choice for teams and technicians who prioritize rapid turnaround and system integrity.
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Rein Engine Coolant Hose - BMW G11, G30 5
Rein Engine Coolant Hose - BMW G11, G30 5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516262
Part#: CHE0993
Ships in 4 Business Days
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$ 64.99 USD
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$ 64.99 USD
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Restore your cooling system’s integrity with the Rein CHE0993 Engine Coolant Hose.
Rein Coolant Expansion Tank - With Cap
Rein Coolant Expansion Tank - With Cap
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53891623
Part#: 17135A6A030C
Back Ordered
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$ 99.99 USD
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$ 99.99 USD
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Replace your old brittle expansion tank
Cooling & Drive Belt Service Kit
Cooling & Drive Belt Service Kit
Genuine BMW - Corporate Logo
T#:55317703
Part#: 112814CRKT
Ships in 9 Business Days
New Item
$ 80.26

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

$ 79.26 USD
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$ 79.26 USD
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Swap out your aged factory components before they fail, and maintain total confidence in your charging, cooling, and air conditioning systems.
Rein Thermostat Assembly - F Chassis, G-Chassis - B48
Rein Thermostat Assembly - F Chassis, G-Chassis - B48
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53891628
Part#: 11537644811
Ships in 4 Business Days
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$ 322.99

This product was last offered at the strikethrough price on
06-10-2026

$ 288.99 USD
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$ 288.99 USD
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Whether you're managing a fleet of "spirited" daily drivers or prepping a chassis for the circuit, the Rein CTA0079 offers the peace of mind that comes with OE-quality engineering.
Rein Water Hose With Metal Flange - E70, E71 - N55, N54
Rein Water Hose With Metal Flange - E70, E71 - N55, N54
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750149
Part#: CHU0633
Ships in 4 Business Days
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$ 56.99 USD
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$ 56.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Rein Lower Radiator Hose - G30 G11 G14 G15 G16 - N63
Rein Lower Radiator Hose - G30 G11 G14 G15 G16 - N63
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55857776
Part#: 17128602669
In Stock at Vendor
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$ 49.99 USD
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$ 49.99 USD
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When it comes to keeping your vehicle on the road, a compromised cooling system is a severe vulnerability. Plastic and rubber degrade from constant heat cycling, leading to hairline cracks, swelling, and sudden failure.
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Rein Radiator Expansion Tank Hose - G30 B48 B58
Rein Radiator Expansion Tank Hose - G30 B48 B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55821725
Part#: 17125A09423
In Stock at Vendor
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$ 18.99 USD
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$ 18.99 USD
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While the modern B48 and B58 powerplants are incredibly robust, BMW’s choice of brittle plastics for their cooling loops remains a major weak link. This upper radiator vent hose runs constantly hot as it returns pressurized coolant back to the expansion tank. After years of being baked by engine bay heat, the thin plastic neck and internal quick-disconnect seals degrade. A hardened factory plastic line can snap at any moment, spraying coolant everywhere.
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Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X 5, 6, 7 ser.
Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903294
Part#: 17129844478
Back Ordered
New Item
$ 49.99 USD
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$ 49.99 USD
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Upgrade your cooling system with the Rein Automotive replacement coolant hose, engineered to meet or exceed the rigorous standards of your BMW.
Genuine BMW S14 Coolant Hose Refresh Kit - 11531chrKT - E30 M3
Genuine BMW S14 Coolant Hose Refresh Kit - 11531chrKT - E30 M3 ...
Genuine BMW - Corporate Logo
T#:59074966
Part#: 11531CHRKT
Ships in 2 Business Days
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$ 95.08 USD
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$ 95.08 USD
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This kit replaces the critical coolant hoses and clamps on the E30 M3. It restores cooling system integrity, preventing common hose failures that lead to leaks and overheating.
Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B58
Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55965843
Part#: 171386106612
Ships in 4 Business Days
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$ 49.99 USD
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$ 49.99 USD
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Keep your ultimate driving machine cool under pressure with this replacement auxiliary expansion tank from Rein. On modern turbocharged BMWs, the secondary cooling system plays a critical role in managing intake charge air temperatures, making a solid reservoir vital for both spirited street driving and track day reliability.
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Engine Coolant Expansion Tank Cap
Engine Coolant Expansion Tank Cap
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:59038367
Part#: 17135A1BD89
Ships in 4 Business Days
New Item
$ 9.99 USD
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$ 9.99 USD
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Water Pump Service Kit
Water Pump Service Kit
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616366
Part#: 115175869251
Ships in 4 Business Days
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$ 1,326.99 USD
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$ 1,326.99 USD
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Refresh your cooling setup with full confidence and protect your investment against heat-induced power loss.
Rein Turbocharger Coolant Supply Line - BMW B58 Gen2
Rein Turbocharger Coolant Supply Line - BMW B58 Gen2
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58307569
Part#: 11538650086
Ships in 4 Business Days
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$ 72.00 USD
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$ 72.00 USD
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Supplies coolant to the turbocharger
Rein Expansion Tank Coolant Hose - G20 G22 G23 G26 G42 (B46 B48)
Rein Expansion Tank Coolant Hose - G20 G22 G23 G26 G42 (B46 B48) ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58307536
Part#: 17128654824
Ships in 4 Business Days
New Item
$ 26.99 USD
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$ 26.99 USD
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Prevent catastrophic cooling system failure and maintain optimal system pressure with a Rein Expansion Tank Vent Line. Engineered as a direct fit replacement for brittle factory expansion tank lines, this vent hose routes pressurized coolant vapor from the cylinder head back to the expansion reservoir. Manufactured with durable heat resistant materials and factory style quick disconnect fittings, it ensures a tight seal against pressure drops and prevents fluid loss.
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Rein Junction Heat Hose - F3x F22 G30 G12 G01 G02 B58
Rein Junction Heat Hose - F3x F22 G30 G12 G01 G02 B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58563047
Part#: 11538606278
Ships in 4 Business Days
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$ 38.99 USD
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$ 38.99 USD
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Protect your engine against thermal degradation and maintain precise cooling system pressure with a Rein Heat Exchanger Return Hose. Engineered as a direct fit replacement for failure prone factory coolant lines, this hose routes coolant through the heat exchanger assembly to prevent thermal spikes under heavy load. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure surges, oil exposure, and cracking across high output 3.0L inline six engine bays.
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Coolant Hose
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616346
Part#: 17128620944
Ships in 4 Business Days
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$ 43.99 USD
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$ 43.99 USD
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Keep your European powertrain running at optimal operating temperatures with a high-grade coolant hose replacement.
Rein Auxiliary Water Pump - E70 X5
Rein Auxiliary Water Pump - E70 X5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58782361
Part#: 64119197085
Ships in 4 Business Days
New Item
$ 94.99 USD
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$ 94.99 USD
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Engineered as a direct replacement for failure prone original equipment secondary pumps, this electric water pump ensures steady hot fluid delivery to the heater core regardless of engine RPM. Built with high quality internal bearings, durable motor windings, and high grade composite housings, it withstands continuous thermal cycling and prevents internal electrical failures.
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Water Pump Service Kit
Water Pump Service Kit
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616363
Part#: 115175869259
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$ 1,687.99 USD
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$ 1,687.99 USD
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Protect your high-performance driving machine from the devastating consequences of thermal overload with the Rein Water Pump Service Kit.
Auxillary Water Pump - BMW N63 S63
Auxillary Water Pump - BMW N63 S63
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58818960
Part#: 11515A36581
Ships in 4 Business Days
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$ 93.99 USD
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$ 93.99 USD
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Pumps coolant to the turbo
Rein Lower Radiator Hose - G3x G1x
Rein Lower Radiator Hose - G3x G1x
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58489956
Part#: 17128602613
Ships in 4 Business Days
New Item
$ 44.99 USD
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$ 44.99 USD
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Protect your engine against thermal breakdown and maintain precise cooling system pressure with a Rein Lower Radiator Hose. Engineered as a direct fit replacement for degradation prone factory rubber hoses, this coolant line connects the lower radiator circuit to ensure steady fluid circulation under heavy driving conditions. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure spikes, ozone exposure, and chemical breakdown.
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Water Hose
Water Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616352
Part#: 17127599452
Ships in 4 Business Days
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$ 63.99 USD
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$ 63.99 USD
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Rein Automotive cooling hoses are designed as precision OEM-quality replacements that withstand the rigorous demands of hard driving.
Coolant Expansion Tank
Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57086700
Part#: 17137642158
Ships in 4 Business Days
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$ 55.99 USD
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$ 55.99 USD
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The factory expansion tank is one of the most common failure points in modern BMW cooling systems, often failing along seam welds or developing micro-cracks around fluid quick-connect fittings. Replacing a degraded reservoir with this direct-fit Rein expansion tank restores pressure containment, ensures accurate coolant expansion volume, and prevents fluid loss before it turns into severe engine damage.
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Rein Additional Water Pump - N63 F Chassis
Rein Additional Water Pump - N63 F Chassis
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58782367
Part#: 64119230237
Ships in 4 Business Days
New Item
$ 92.99 USD
Free Shipping on orders $49 and up
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$ 92.99 USD
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Engineered as a direct replacement for failure prone original equipment secondary pumps, this electric water pump ensures steady hot fluid delivery to the heater core regardless of engine RPM. Built with high quality internal bearings, durable motor windings, and high grade composite housings, it withstands continuous thermal cycling and prevents internal electrical failures.
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