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Rein BMW Cooling System Parts & Accessories for BMW 7 Series F01 (2009+)

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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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Rein Aluminum Coolant Hose Flange - E82, E88, E90, E91, E92, E93 ...

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T#:593535

Part#: CHC0609

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$ 36.06 USD

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$ 36.06 USD

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Made from high-strength aluminum vs the OEM plastic prone to failure.

OEM Rein Lower Coolant Hose - N63 4.4L

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T#:554681

Part#: 17127575427

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$ 51.99 USD

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$ 51.99 USD

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

Fits the following engines:
N63 4.4L

OEM Rein Vent Hose - N63 4.4L

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T#:554680

Part#: 17127576363

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$ 26.99 USD

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$ 26.99 USD

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

Fits the following engines:
N63 4.4L

Water Hose - Water Pump To Expansion Tank

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T#:594311

Part#: 17127575453

In Stock at Vendor

$ 67.99

This product was last offered at the strikethrough price on
05-07-2026

$ 65.99 USD

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$ 65.99 USD

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Replacement water hose from Rein

Expansion Tank

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T#:593074

Part#: 17137601948

Back Ordered

$ 118.99 USD

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$ 118.99 USD

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Cooling system expansion tank

Rein Water Pump - N63 S63

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T#:393385

Part#: 11517548263

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$ 215.99 USD

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$ 215.99 USD

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In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust. Replace your water pump with Rein to get your cooling system back in check.

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Water Pump Blind Plug

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T#:594382

Part#: 11531439134

In Stock

$ 7.89

This product was last offered at the strikethrough price on
12-17-2025

$ 7.76 USD

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$ 7.76 USD

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Replacement Water Pump Blind Plug from Rein

BMW Expansion Tank With Cap - 17137601948

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T#:46616024

Part#: EPK0141

In Stock

$ 97.99

This product was last offered at the strikethrough price on
06-01-2026

$ 87.99 USD

Limited Qty Sale

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Qty

$ 97.99

This product was last offered at the strikethrough price on
06-01-2026

$ 87.99 USD

Limited Qty Sale

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The coolant expansion tank provides a reservoir for excess coolant as it expands and contracts with temperature fluctuations. Constant exposure to these extreme changes can eventually cause the tank to crack or fail.

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Intercooler Expansion Tank

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T#:584477

Part#: 17137647281

In Stock

$ 71.99 USD

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$ 71.99 USD

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Rein Coolant Hose - Lower - F01, F02, F06, F07, F10, F12

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T#:592014

Part#: 17127600836

In Stock

$ 47.99 USD

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$ 47.99 USD

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Lower radiator hose connected to secondary radiator

Rein Expansion Tank Cap

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T#:384807

Part#: 17117639021

In Stock

$ 16.99 USD

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$ 16.99 USD

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Cap for plastic expansion tank

BMW Radiator Hose Kit - 17127575427

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T#:46719185

Part#: CHK0583

Ships in 3 Business Days

$ 69.99 USD

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$ 69.99 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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Rein- Coolant Hose F10 535i, F13 640i, F07 535i

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T#:34080749

Part#: 17127580963

Ships in 3 Business Days

$ 83.99 USD

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$ 83.99 USD

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Rein Coolant Hose is a premium replacement part designed for BMW models, ensuring efficient and reliable coolant flow throughout the engine’s cooling system. This hose is crucial for regulating engine temperature and preventing overheating, maintaining optimal performance in a wide range of driving conditions. Manufactured to meet or exceed OEM specifications, the Rein Coolant Hose offers a direct-fit solution for easy installation and long-lasting durability. Available through Turner Motorsport, this coolant hose is the ideal upgrade for BMW owners looking to maintain or improve their vehicle’s cooling system.

Specifically designed for BMW models to ensure perfect fit and compatibility
Regulates coolant flow to prevent engine overheating
Constructed from high-quality, heat-resistant materials for durability
Reduces the risk of leaks and cooling system failures
Direct-fit replacement
Meets OEM standards for reliable cooling system performance

Enhance your BMW’s cooling efficiency and engine reliability with the Rein Coolant Hose, providing the necessary protection against overheating and coolant system failure.

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Module Bracket

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T#:639804

Part#: 17117575247

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$ 20.99 USD

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$ 20.99 USD

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This is the left side radiator bracket.

Rein Radiator Mount

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T#:17804812

Part#: 17117575248

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$ 13.99 USD

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$ 13.99 USD

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Rein OE equivalent mounts are produced with high-quality materials to ensure maximum life and a smooth ride.

Radiator Hose - Radiator To Thermostat Housing

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T#:594376

Part#: 17127610704

In Stock at Vendor

$ 30.99 USD

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$ 30.99 USD

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Replacement Radiator Hose - Radiator To Thermostat Housing from Rein

Water Pump Service Kit

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T#:38161728

Part#: 11515A05704

Ships on Jun 19, 2026

$ 749.99 USD

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$ 749.99 USD

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BMW Expansion Tank Kit - 17137647283

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T#:46616005

Part#: EPK0151

Back Ordered

$ 100.99 USD

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$ 100.99 USD

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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues. his item fits the following BMW Chassis: F01,F02,F06,F10,F12,F13 Fits BMW Engines including: N54,N55,N57N

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