Rein CHR0009 Radiator Coolant Hose - Lower or Lower - Radiator To Thermostat

OE-Style BMW Radiator Coolant Hose

Rein CHR0009 is a standard replacement radiator coolant hose for select BMW applications. It is built as a direct OE-style hose for lower radiator-to-thermostat routing, with the correct shape, branch geometry, and thermoplastic quick connect fittings for the listed vehicles.

Compatible with 2002-2008 BMW 745i, 745Li, 750i, 750Li, 545i, and 645Ci applications, this hose supports a clean factory-style coolant connection. Rein CHR0009 is a practical choice when replacing a worn or leaking lower radiator hose on BMW cooling systems.

Key Features

• Standard replacement radiator coolant hose for European vehicles
• OE-style dimensions and branch layout for direct fitment
• Thermoplastic quick connect fittings for listed BMW applications
• Black hose construction
• Designed for lower radiator-to-thermostat routing where specified
• Rein CHR0009 cross-references OE part numbers 17127508011 and 17127519250

Detailed Description

Rein Automotive CHR0009 is engineered for BMW cooling system service where an OE-quality lower radiator hose is required. The hose follows the original routing and connection style used on the factory assembly, helping maintain proper coolant flow between the radiator and thermostat on the listed 7 Series, 5 Series, and 6 Series models. For buyers searching for a BMW lower radiator hose with quick connectors, CHR0009 provides a direct replacement solution.

This part is listed for 2002-2005 BMW 745i and 745Li, 2004-2005 BMW 545i and 645Ci, and 2006-2008 BMW 750i and 750Li. The Rein CHR0009 part number is also useful when cross-referencing OE-style coolant hose replacements for these BMW applications.

Common Problems This Hose Can Address

• Coolant leaks at the lower radiator hose connection
• Cracked or hardened hose material from age and heat cycling
• Damaged quick connect fittings on the original hose assembly
• Poor sealing at the radiator-to-thermostat coolant path
• Service replacement for a deteriorated BMW lower coolant hose

Installation Notes and Tips

Verify the vehicle year, model, and hose routing before installation. This hose is listed for lower radiator-to-thermostat or lower positions depending on application, so confirm the connector style and routing on the vehicle before ordering. Inspect mating fittings, clamps, and adjacent cooling system components for wear or contamination before reassembly.

Quality Assurance

Rein designs this hose as an OE-quality replacement for European vehicles, matching the original hose shape and quick connect configuration used on the factory part. CHR0009 is intended to restore factory-style fit and connection geometry on the listed BMW cooling system applications.