Rein CHR0462 Radiator Coolant Hose - Lower - Radiator To Thermostat

OE Quality Lower Radiator Hose for BMW

Rein CHR0462 is an OE quality radiator coolant hose built for European vehicle cooling systems. It is a direct replacement for the original lower hose from the radiator to the thermostat on select BMW 128i, 328i, 328i xDrive, 328xi, 323i, 325i, 325xi, 330i, and 330xi applications.

Key Features

• Direct-fit replacement for the OE radiator hose assembly
• Reduces installation time with application-specific design
• No cutting, refitting, or adjusting the hose during installation
• Thermoplastic quick connect fittings help prevent leaks and repeat repairs
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Built to SAE J20 R3 industry standards
• Black hose finish with OE-style routing and dimensions

Detailed Description

Rein CHR0462 is engineered to match the original hose shape, branch sizing, and connector style used on BMW cooling systems. The hose measures 10.5 inches centerline length and uses OE-style quick connect fittings at both ends for a secure connection between the radiator and thermostat. This makes it a practical choice for BMW 128i and BMW 328i cooling system service, as well as other listed 3 Series applications where the lower radiator hose must match factory routing and connector geometry. This part cross-references BMW (e.g., 17127531581) for the same application.

Common Problems This Hose Can Address

• Coolant leaks at worn or damaged hose connections
• Cracked, swollen, or heat-aged radiator hose material
• Poor sealing from reused quick connectors or O-rings
• Extended repair time caused by hose modification or refitting
• Cooling system service issues on BMW lower radiator-to-thermostat routing

Installation Notes and Tips

Verify the vehicle’s lower radiator-to-thermostat hose routing before installation. Inspect the mating connectors and sealing surfaces for wear, contamination, or damage, and replace any compromised O-rings or connectors as needed. Confirm fitment by year, make, model, and position for BMW 128i, 328i, 328i xDrive, 328xi, 323i, 325i, 325xi, 330i, and 330xi applications.

Quality Assurance

Rein designs this hose as an OE-quality replacement for European vehicles, with dimensions and connector details matched to the original application. Part number CHR0462 is backed by a 24-month or 24,000-mile warranty.