BMW Cooling System Parts & Accessories

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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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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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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Rein Water Hose Problem Solver Kit - F chassis N55

2X Entries Into Our F80 M3 Sweepstakes

T#:53750119

Part#: 11537598237

In Stock at Vendor

$ 26.99 USD

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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

Rein Water Hose With Metal Flange - F-Chassis - N55

2X Entries Into Our F80 M3 Sweepstakes

T#:53750147

Part#: CHU0632

In Stock

$ 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 Engine Coolant Reservoir - BMW G1X, G3X

2X Entries Into Our F80 M3 Sweepstakes

T#:52516268

Part#: EPT0274

Ships in 4 Business Days

$ 114.99 USD

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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.

Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55

2X Entries Into Our F80 M3 Sweepstakes

T#:53750144

Part#: CHU0629

In Stock

$ 56.99 USD

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$ 56.99 USD

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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks

Coolant Return Line

2X Entries Into Our F80 M3 Sweepstakes

T#:53856300

Part#: 11538650087

In Stock

$ 60.99 USD

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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 Lower Radiator Hose - G30 G11 G14 G15 G16 - N63

2X Entries Into Our F80 M3 Sweepstakes

T#:55857776

Part#: 17128602669

In Stock at Vendor

$ 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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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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Rein Engine Inlet To Changeover Valve Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:52903280

Part#: 17128616914

In Stock at Vendor

$ 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".

Coolant Outlet Hose

T#:57725187

Part#: 11537541992

In Stock

$ 26.99 USD

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$ 26.99 USD

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The Burgaflex Coolant Outlet Hose delivers track-ready reliability for high-demand driving conditions.

Coolant Hose

T#:57725223

Part#: 11537593513

In Stock

$ 17.95 USD

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$ 17.95 USD

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Keep your engine running cool on the street and track with this high-performance coolant hose from Burgaflex.

Radiator Hose - Lower

T#:57725197

Part#: 17127537108

In Stock

$ 38.99 USD

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$ 38.99 USD

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Keep your cooling system performing at its absolute best with this heavy-duty lower radiator hose engineered by Burgaflex.

Rein Radiator Expansion Tank Hose - G30 B48 B58

2X Entries Into Our F80 M3 Sweepstakes

T#:55821725

Part#: 17125A09423

In Stock

$ 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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Radiator Hose - Low

T#:57725183

Part#: 11531247261

In Stock

$ 10.99 USD

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$ 10.99 USD

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Engineered to meet rigorous standards, this heavy-duty radiator hose provides the durability needed to handle demanding driving conditions.

Cooling Hose

T#:57761571

Part#: 11537592095

In Stock

$ 31.99

This product was last offered at the strikethrough price on
09-26-2026

$ 25.99 USD

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$ 25.99 USD

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The Burgaflex cooling hose is engineered for enthusiasts who demand peak performance and bulletproof reliability under harsh conditions.

Coolant Hose

T#:57725193

Part#: 17127560968

In Stock

$ 94.99 USD

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$ 94.99 USD

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The Burgaflex coolant hose is built for drivers who demand maximum reliability under rigorous thermal conditions.

Rein Thermostat Assembly - F Chassis, G-Chassis - B48

2X Entries Into Our F80 M3 Sweepstakes

T#:53891628

Part#: 11537644811

Ships in 4 Business Days

$ 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 Coolant Expansion Tank Kit - F97 F98 G01 G02 G05 G06 G07 - S58 B...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965839

Part#: 17138610661

Ships in 4 Business Days

$ 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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Rein Water Hose With Metal Flange - E70, E71 - N55, N54

2X Entries Into Our F80 M3 Sweepstakes

T#:53750149

Part#: CHU0633

Ships in 4 Business Days

$ 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 Coolant Temperature Sensor - BMW E6X, E7X, E9X

2X Entries Into Our F80 M3 Sweepstakes

T#:52516266

Part#: ELC0090

Ships in 4 Business Days

$ 69.99 USD

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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.

Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X...

2X Entries Into Our F80 M3 Sweepstakes

T#:52903294

Part#: 17129844478

Back Ordered

$ 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.

Rein Coolant Expansion Tank - F97 F98 G01 G02 G05 G06 G07 - S58 B46 B...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965843

Part#: 171386106612

Ships in 4 Business Days

$ 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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Rein Coolant Expansion Tank - With Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:53891623

Part#: 17135A6A030C

Ships in 4 Business Days

$ 99.99 USD

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$ 99.99 USD

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Replace your old brittle expansion tank

Rein Engine Coolant Hose - BMW G11, G30 5

2X Entries Into Our F80 M3 Sweepstakes

T#:52516262

Part#: CHE0993

Ships in 4 Business Days

$ 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 Water Hose with Metal Flange - E60, E61 - N54

2X Entries Into Our F80 M3 Sweepstakes

T#:53750141

Part#: CHU0460

Ships in 4 Business Days

$ 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

Engine Coolant Expansion Tank Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:59038367

Part#: 17135A1BD89

Ships in 4 Business Days

$ 9.99 USD

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Qty

$ 9.99 USD

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Rein Junction Heat Hose - F3x F22 G30 G12 G01 G02 B58

2X Entries Into Our F80 M3 Sweepstakes

T#:58563047

Part#: 11538606278

Ships in 4 Business Days

$ 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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Rein Lower Radiator Hose - G3x G1x

2X Entries Into Our F80 M3 Sweepstakes

T#:58489956

Part#: 17128602613

Ships in 4 Business Days

$ 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 Pump Service Kit

2X Entries Into Our F80 M3 Sweepstakes

T#:57616366

Part#: 115175869251

Ships in 4 Business Days

$ 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 Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - ...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965849

Part#: 11537598865

Ships in 4 Business Days

$ 79.99 USD

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$ 79.99 USD

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A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads.

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Rein Auxiliary Water Pump - E70 X5

2X Entries Into Our F80 M3 Sweepstakes

T#:58782361

Part#: 64119197085

Ships in 4 Business Days

$ 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

2X Entries Into Our F80 M3 Sweepstakes

T#:57616362

Part#: 1151758692550

Ships in 4 Business Days

$ 1,264.99 USD

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$ 1,264.99 USD

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This CRP/Rein service kit offers an all-in-one overhaul solution designed to restore maximum cooling system integrity.

Rein Auxiliary Water Pump - E65 E66 7 Series

2X Entries Into Our F80 M3 Sweepstakes

T#:58745797

Part#: 64116922699

Ships in 4 Business Days

$ 84.99 USD

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$ 84.99 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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Rein Additional Water Pump - N63 F Chassis

2X Entries Into Our F80 M3 Sweepstakes

T#:58782367

Part#: 64119230237

Ships in 4 Business Days

$ 92.99 USD

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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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Water Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:57616352

Part#: 17127599452

Ships in 4 Business Days

$ 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.

Upper Radiator Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:58563050

Part#: 17128602871

Ships in 4 Business Days

$ 64.99 USD

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Qty

$ 64.99 USD

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Protect your engine against severe thermal breakdown and maintain precise cooling system pressure with a Rein Primary Upper Radiator Hose. Engineered as a direct fit replacement for degradation prone original equipment hoses, this upper radiator line transfers high temperature coolant straight to the primary radiator core. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure spikes, ozone degradation, and chemical breakdown under demanding driving conditions.

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