Rein CHR0582 Radiator Coolant Hose - Lower - Heat Exchanger To Radiator

OE-Style Radiator Hose for BMW Cooling Repair

Rein CHR0582 is an OE-quality radiator coolant hose built for European vehicle cooling systems. It is a direct replacement for the original hose assembly, with the same branch sizing and thermoplastic quick-connect fitment used by the factory design.

Compatible With BMW 128i, 323i, 325i, 325xi, 328i, 328i xDrive, 328xi, 330i, 330xi, and Z4 applications in the lower heat exchanger to radiator position, this hose supports a clean repair on BMW cooling system service. The Rein CHR0582 is made for accurate fitment without trimming or reshaping.

• Direct-fit replacement for OE radiator hose assemblies
• Reduces installation time on BMW cooling repairs
• No cutting, refitting, or adjusting the hose
• Helps prevent leaks and repeat repairs from reused quick connectors and O-rings
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Black hose with OE-style dimensions and thermoplastic quick-connect fittings

Detailed Product Overview

Rein CHR0582 is engineered as a complete OE-quality radiator hose for the lower heat exchanger to radiator circuit. The hose measures 8 inches centerline length and uses application-specific dimensions, including a 0.850-inch inside diameter at one end and a 0.450-inch inside diameter at the other. With a maximum working pressure rating of 131 psi, it is built for the demands of BMW cooling system service. This part cross-references BMW 17117521067 and 17117524710 for the same application.

Common Cooling System Issues It Can Address

• Coolant seepage at worn hose connections
• Leaks caused by aged quick-connect fittings or O-rings
• Fitment problems from universal hose substitutions
• Extended repair time from cutting or modifying the hose
• Repeat cooling system service after reusing old connectors

Installation Notes and Tips

Use this hose as a direct replacement for the specified BMW lower heat exchanger to radiator location. Verify connector engagement and inspect mating surfaces before installation. Replacing worn quick connectors and O-rings during service helps maintain a secure seal and reduces comeback risk.

Quality Assurance

Rein Automotive positions this hose as an OE-quality replacement for European vehicles, with factory-style shape, branch layout, and quick-connect design. Part number CHR0582 is backed by a 24-month warranty with a 24,000-mile distance limit.