Rein CHE0475 Engine Coolant Hose - Thermostat To Water Pump

OE Coolant Hose for BMW Cooling Systems

Rein CHE0475 is an OE-quality engine coolant hose built for European vehicle cooling systems that require an exact replacement. It follows the original hose shape and branch sizing, with thermoplastic quick-connect fittings that match the factory layout for BMW thermostat-to-water-pump routing.

For BMW 135i, 335i, 535i, X1, X6, Z4, and related applications, this Rein water hose is made to restore proper coolant flow without trimming or reworking the hose. The CHE0475 part number is a direct-fit solution for service work where factory-style routing and connector integrity matter.

Key Features

• Direct replacement for OE coolant hose assemblies
• Factory-matched branch shape and connector design
• EPDM hose construction for cooling-system service
• Thermoplastic quick-connect fittings for OE-style attachment
• Resistant to heat, salt, road debris, oil, and other contaminants
• Reduces installation time by eliminating hose cutting and refitting
• Helps prevent leaks caused by reusing old quick connectors and O-rings

Product Details

Rein Automotive CHE0475 is engineered as a direct OE replacement coolant hose for BMW applications with thermostat-to-water-pump routing. The hose measures 8.86 inches centerline length and uses 0.750-inch and 0.560-inch end diameters, with black EPDM construction for durability in engine-bay heat and exposure. This part is designed to match the original hose assembly closely, making it a practical choice for BMW cooling system repair on 335i, 535i, X6, Z4, and X1 models.

This part cross-references Genuine 11537545665 for the same application.

Common Issues This Hose Can Address

• Coolant leaks at worn hose connections
• Cracked or heat-aged factory coolant hose material
• Damaged quick-connect fittings or O-rings
• Improper fit from modified or repaired hoses
• Cooling-system service on BMW thermostat-to-water-pump lines

Installation Notes

Verify the vehicle’s cooling hose routing and connector style before installation. This hose is application-specific, so confirm the BMW model, year, and thermostat-to-water-pump position against the fitment list. Inspect mating surfaces and replace any damaged seals or connectors as needed during service.

• Fits 2013-2014 BMW X1, Thermostat To Water Pump
• Fits 2009-2014 BMW Z4, Thermostat To Water Pump
• Fits 2008-2013 BMW 135i, Thermostat To Water Pump
• Fits 2007-2013 BMW 335i, Thermostat To Water Pump
• Fits 2009-2013 BMW 335i xDrive, Thermostat To Water Pump
• Fits 2011-2013 BMW 335is, Thermostat To Water Pump
• Fits 2011 BMW 1 Series M, Thermostat To Water Pump
• Fits 2008-2010 BMW 535i, Thermostat To Water Pump
• Fits 2009-2010 BMW 535i xDrive, Thermostat To Water Pump
• Fits 2008-2010 BMW X6, Thermostat To Water Pump
• Fits 2007-2008 BMW 335xi, Thermostat To Water Pump
• Fits 2008 BMW 535xi, Thermostat To Water Pump

Quality Assurance

Rein positions this hose as an OE-quality replacement for European vehicles, with dimensions and connector details matched to the original design. CHE0475 is built to support factory-style fitment on BMW cooling systems where accurate hose routing and secure connections are required.