Rein BMW Coolant & Radiator Hoses

OEM Rein Throttle Body Return Hose - E34 525i

2X Entries Into Our F80 M3 Sweepstakes

T#:379743

Part#: 11531738054

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08-31-2026

$ 58.89 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

OEM Rein Upper Radiator Hose - E53 X5 N62 4.4L 4.8L

2X Entries Into Our F80 M3 Sweepstakes

T#:362526

Part#: 17127526856

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$ 79.05 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Fits the following BMWs:
2003+ E53 BMW X5 N62 4.4L 4.8L

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OEM Rein Upper Radiator Hose - Z4 Roadster

2X Entries Into Our F80 M3 Sweepstakes

T#:362445

Part#: 17127514404

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$ 49.39 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Coolant Hose

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T#:379793

Part#: 17127534918

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$ 86.44 USD

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From water pump to radiator

Rein Coolant Hose - F10

2X Entries Into Our F80 M3 Sweepstakes

T#:591820

Part#: 11537593513

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08-31-2026

$ 30.39 USD

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Coolant hose from the water pump

Rein Radiator Hose - Upper - E65, E66

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T#:379749

Part#: 17127535742

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$ 85.49 USD

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A common source of cooling system failure

OEM Rein Expansion Tank Hose - F07 F10 F12 F13 N63 4.4L

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T#:554679

Part#: 17127592645

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$ 28.49 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Fits the following BMW Chassis:
F07, F10, F12, F13,

Fits the following engines:
N63 4.4L

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Rein Heater Hose - Supply - Z3

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T#:379690

Part#: 64218401809

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$ 21.84 USD

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Supplies the heater core with coolant

Rein Radiator Hose - E70 X5

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T#:388766

Part#: 17127536230

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$ 64.59 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Rein Radiator Hose - Upper - E32, E34

2X Entries Into Our F80 M3 Sweepstakes

T#:6960

Part#: 11531722682

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$ 60.79 USD

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BMW ENGINE WATER HOSE 11531722682.--

This item fits the following BMWs:
BMW 5 Series -535i
BMW 7 Series - 735i, 735iL

--.

BMW Radiator Hose Kit - 11537505229

2X Entries Into Our F80 M3 Sweepstakes

T#:46719191

Part#: CHK0008P

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$ 58.80 USD

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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.

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OEM Rein Radiator Feed Hose - E70 X5

2X Entries Into Our F80 M3 Sweepstakes

T#:583608

Part#: 17127536231

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$ 59.84 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Lower Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:594367

Part#: 17127578703

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$ 38.94 USD

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Replace your swollen or leaking hose.

Radiator Hose

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T#:594373

Part#: 17127619255

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08-31-2026

$ 126.34 USD

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Replacement Radiator Hose from Rein

OEM Rein Thermostat Coolant Hose - E53 M62

2X Entries Into Our F80 M3 Sweepstakes

T#:20210

Part#: 11537500752

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$ 20.89 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Water Hose with Gasket

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T#:599688

Part#: 11537560530

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This short curved coolant hose connects from the aux water pump near the transmission.

OEM Rein Lower Radiator Hose - E53 X5 M62 4.4L 4.6L

2X Entries Into Our F80 M3 Sweepstakes

T#:375370

Part#: 11537500750

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Sale - Save 5% $ 33.99

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08-31-2026

$ 32.29 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

This item fits the following BMWs:
2000-2003 E53 BMW X5 4.4i 4.6is

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Rein Lower Radiator Hose - E53 X5 N62 4.4L 4.8L

2X Entries Into Our F80 M3 Sweepstakes

T#:362530

Part#: 17127509963

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Sale - Save 19% $ 51.38

This product was last offered at the strikethrough price on
04-15-2026

$ 41.79 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Fits the following BMWs:
2003+ E53 BMW X5 N62 4.4L 4.8L

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OEM Rein Expansion Tank Hose - E53 X5 N62

2X Entries Into Our F80 M3 Sweepstakes

T#:379752

Part#: 17127509965

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08-31-2026

$ 33.24 USD

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This is one of the hoses exiting from the bottom of the expansion tank on your BMW. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

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Rein Radiator Hose - Automatic Transmission - E83

2X Entries Into Our F80 M3 Sweepstakes

T#:19573

Part#: 17123417607

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08-31-2026

$ 35.14 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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Rein Coolant Hose - Water Valve - Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:379696

Part#: 64218400295

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$ 26.59 USD

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Return hose for the underhood coolant valve

Rein Radiator Hose - Lower - E83

2X Entries Into Our F80 M3 Sweepstakes

T#:362528

Part#: 17123413819

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Sale - Save 5% $ 45.99

This product was last offered at the strikethrough price on
08-31-2026

$ 43.69 USD

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Includes port for coolant temperature sensor

OEM Rein Expansion Tank Hose - E53 X5 M62 4.4L 4.6L

2X Entries Into Our F80 M3 Sweepstakes

T#:363439

Part#: 11537505950

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$ 26.59 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

This item fits the following BMWs:
2000-2003 E53 BMW X5 4.4i 4.6is

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Rein Cylinder Head To Thermostat Hose - E83

2X Entries Into Our F80 M3 Sweepstakes

T#:591814

Part#: 11537552339

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Sale - Save 14% $ 37.06

This product was last offered at the strikethrough price on
08-26-2026

$ 31.73 USD

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$ 37.06

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Replace your leaking coolant hose

OEM Rein Lower Radiator Hose - E83 N52 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:379822

Part#: 17123422785

In Stock at Vendor

Sale - Save 5% $ 37.99

This product was last offered at the strikethrough price on
08-31-2026

$ 36.09 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

OEM Rein Radiator Hose - E70 X5

2X Entries Into Our F80 M3 Sweepstakes

T#:379812

Part#: 17127537108

In Stock at Vendor

Sale - Save 5% $ 44.99

This product was last offered at the strikethrough price on
08-31-2026

$ 42.74 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Radiator Vent Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:592001

Part#: 17127534917

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Sale - Save 6% $ 38.23

This product was last offered at the strikethrough price on
08-13-2026

$ 36.09 USD

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Replace your cracked & leaking hose

Radiator Hose - Radiator To Thermostat Housing

2X Entries Into Our F80 M3 Sweepstakes

T#:594377

Part#: 17127619256

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Sale - Save 5% $ 99.99

This product was last offered at the strikethrough price on
08-31-2026

$ 94.99 USD

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Replacement Radiator Hose - Radiator To Thermostat Housing from Rein

Coolant Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:592029

Part#: 17138616418

In Stock at Vendor

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This product was last offered at the strikethrough price on
08-31-2026

$ 81.69 USD

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Replaced your cracked unit with a new coolant expansion tank

Rein Expansion Tank Hose - E53

2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:375755

Part#: 11537500735

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Sale - Save 5% $ 24.99

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08-31-2026

$ 23.74 USD

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To maintain peak performance, a BMW's cooling system must remain perfectly pressurized. On the E53 X5, the expansion tank hose acts as a vital conduit in this thermal cycle, managing the flow of expanding coolant back and forth between the auxiliary water pump and reservoir. Over years of severe under-hood heat cycles, the factory rubber loses its elasticity and the plastic connectors turn brittle, establishing a high risk for spontaneous splitting.

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OEM Rein Coolant Expansion Tank Hose - Lower - BMW E65/66 7 Series ...

2X Entries Into Our F80 M3 Sweepstakes

T#:375750

Part#: 17127508015

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$ 28.49 USD

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Attaches from the bottom fitting on the expansion tank to the supply hose. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

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OEM Rein Lower Radiator Hose - E83 X3

2X Entries Into Our F80 M3 Sweepstakes

T#:379773

Part#: 17123424499

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$ 35.14 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

OEM Rein Coolant Hose - E60 528

2X Entries Into Our F80 M3 Sweepstakes

T#:557218

Part#: 17127565780

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08-31-2026

$ 34.19 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

OEM Rein Upper Radiator Hose - E53 X5 3.0i 2000-2006

2X Entries Into Our F80 M3 Sweepstakes

T#:6979

Part#: 11537500733

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08-31-2026

$ 38.94 USD

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This upper radiator cooling hose connects the drivers side top of the radiator to the thermostat housing on X5 3.0i with the M54 engine.

This item fits the following BMWs:
2000-2006 E53 BMW X5 3.0i M54

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Rein Coolant Hose - E36

2X Entries Into Our F80 M3 Sweepstakes

T#:591767

Part#: 11531703844

In Stock

Sale - Save 5% $ 8.14

This product was last offered at the strikethrough price on
08-31-2026

$ 7.73 USD

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$ 8.14

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This is the heater hose that connects between the heater valve and the heater return hose

OE Rein Lower Radiator Hose - E39 540i, E38 740i/IL 1996-1998 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:374352

Part#: 11531741409

In Stock

Sale - Save 5% $ 17.99

This product was last offered at the strikethrough price on
08-31-2026

$ 17.09 USD

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This item fits the following BMWs:
1997-1998   E39 BMW   540i
1996-1998   E38 BMW   740i 740il

Rein Cooling O-Ring - E53, E60, E63, E64, E65, E66, E70

2X Entries Into Our F80 M3 Sweepstakes

T#:362446

Part#: 11531710048

In Stock

Sale - Save 5% $ 4.07

This product was last offered at the strikethrough price on
08-31-2026

$ 3.87 USD

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$ 4.07

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Seals the rear of the water transfer pipe to the block

Rein Coolant Bleeder Screw CHW1575 - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:591955

Part#: 17111712788

In Stock

Sale - Save 22% $ 4.99

This product was last offered at the strikethrough price on
08-31-2026

$ 3.87 USD

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$ 4.99

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Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.

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Rein Turbocharger Coolant Line CHU0902

2X Entries Into Our F80 M3 Sweepstakes

T#:34147744

Part#: 11537577012

Ships in 2 Business Days

Sale - Save 5% $ 69.99

This product was last offered at the strikethrough price on
08-31-2026

$ 66.49 USD

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Rein Turbocharger Coolant Line CHU0902 is a high-quality replacement part designed to ensure optimal cooling for BMW turbocharged engines. This coolant line, available from Turner Motorsport, is engineered to efficiently regulate coolant flow to prevent overheating of the turbocharger, protecting it from damage and extending its lifespan. The Rein Turbocharger Coolant Line CHU0902 offers a perfect OEM fit for seamless installation, making it an ideal choice for both professional mechanics and BMW enthusiasts.

Constructed with durable, heat-resistant materials, this coolant line ensures long-lasting performance and reliability. It’s a vital component for maintaining engine efficiency and maximizing the performance of your BMW’s turbo system.

Key Features:

Designed for BMW turbocharged engines to prevent turbo overheating
Perfect OEM fit for easy, hassle-free installation
Efficient coolant regulation improves engine and turbocharger longevity
Made from durable, heat-resistant materials for long-term reliability
Available from Turner Motorsport, a trusted source for BMW parts and performance upgrades

For BMW owners looking to enhance engine performance and protect the turbo system, the Rein Turbocharger Coolant Line CHU0902 is a must-have upgrade.

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OEM Rein Engine Coolant Hose - Turbo Charger - BMW F48 F39 B46/B48 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:40985138

Part#: 17127617377

In Stock

$ 70.99

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

$ 59.99 USD

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$ 70.99

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

$ 59.99 USD

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This OEM Rein coolant hose connects the auxiliary pump to the heat exchanger hose. Replace your old, cracked coolant hose with this new hose from Rein to prevent coolant loss and overheating.

Rein Coolant Hose - E60, E61, E70, E82, E83, E88, E90, E91, E92, E93,...

2X Entries Into Our F80 M3 Sweepstakes

T#:348982

Part#: 11537521049

In Stock

Sale - Save 5% $ 17.99

This product was last offered at the strikethrough price on
08-31-2026

$ 17.09 USD

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Connects from the water pump to the thermostat

Rein Heater Hose - E46 BMW

2X Entries Into Our F80 M3 Sweepstakes

T#:362531

Part#: 64218363198

Ships in 5 Business Days

Sale - Save 5% $ 9.58

This product was last offered at the strikethrough price on
08-31-2026

$ 9.10 USD

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08-31-2026

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

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Upper Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:557631

Part#: 17122754222

Ships in 4 Business Days

Sale - Save 5% $ 58.99

This product was last offered at the strikethrough price on
08-31-2026

$ 56.04 USD

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08-31-2026

$ 56.04 USD

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Rein Expansion Tank Hose - E31, E38, E39

2X Entries Into Our F80 M3 Sweepstakes

T#:375756

Part#: 11531741404

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08-31-2026

$ 8.03 USD

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Connects the expansion tank to the radiator

OEM Rein Coolant Pipe Inlet Hose Section - N52

2X Entries Into Our F80 M3 Sweepstakes

T#:388662

Part#: 11537516414

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This product was last offered at the strikethrough price on
08-31-2026

$ 18.99 USD

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Cooling hoses tend to crack over time after going through countless heating and cooling cycles. This can lead to leaks or air bubbles in the cooling system that lead too coolant loos, hurts cooling potential, or could possibly cause damage from excess heat.

Fits the following BMWs:
Submodels with N52 3.0L engine.

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Rein Coolant Outlet Hose W/ Upgraded Aluminum Flange - BMW E82/88 E9X...

2X Entries Into Our F80 M3 Sweepstakes

T#:44835448

Part#: CHU0484

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This product was last offered at the strikethrough price on
08-13-2026

$ 43.70 USD

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08-13-2026

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Attaches the outlet of the thermostat housing to the cylinder head This hose is notorious for failure at the flange. The plastic flange becomes brittle over time due to numerous heat cycles and often cracks, leading to a major coolant leak. This upgraded option from Rein features an aluminum flange that will not crack or split, ensuring years of operation without the worries of failure.

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OEM Rein Coolant Hose - E60 525/530 M54

2X Entries Into Our F80 M3 Sweepstakes

T#:340689

Part#: 17127519256

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$ 47.93

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

$ 42.99 USD

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$ 47.93

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

$ 42.99 USD

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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

Rein Water Pipe - E82, E88, E90, E91, E92, E93

2X Entries Into Our F80 M3 Sweepstakes

T#:403979

Part#: 11537545890

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08-31-2026

$ 19.94 USD

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Connects from the top of the thermostat housing to the engine block

Upper Coolant Hose

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T#:38195380

Part#: 17127617363

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Sale - Save 5% $ 73.99

This product was last offered at the strikethrough price on
08-31-2026

$ 70.29 USD

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Water Pump to Thermostat Cooling Hose - E30 E34 E28

2X Entries Into Our F80 M3 Sweepstakes

T#:6917

Part#: 11531287651

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This product was last offered at the strikethrough price on
08-31-2026

$ 10.44 USD

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$ 10.99

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Replace your cracked or leaking coolant hose with this radiator coolant hose that goes from the waterpump to the thermostat on cars with the M20 engine. We recommend inspecting cooling system hoses for dry rot / cracks yearly.

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1982-1988 E28 BMW 528e
1989-1990 E34 BMW 525i

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Rein BMW Coolant & Radiator Hoses

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