Rein CHR0048 Radiator Coolant Hose - Lower

OE-Style Lower Radiator Hose for BMW Z3

Rein CHR0048 is an OE-quality radiator coolant hose for the lower cooling circuit on select BMW Z3 applications. It is built as a direct replacement for the original hose assembly, with the correct branch shape and thermoplastic quick connect fitting for a clean, factory-style fit.

Fits 1999-2002 BMW Z3, lower. This Rein CHR0048 radiator hose is designed for European vehicle cooling systems where exact routing and connector fit are important.

Key Features

• Direct-fit replacement for the OE radiator hose assembly
• Reduces installation time by matching the original hose layout
• No cutting, refitting, or adjusting the hose during installation
• Includes a thermoplastic quick connect fitting for OE-style connection
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Black finish with application-specific dimensions for the lower hose position

Product Details

Rein CHR0048 is engineered to match the original hose used on compatible BMW Z3 models, including the 1999-2002 BMW Z3 lower hose application. The hose is built from EPDM and follows the OE size and shape requirements, including the branch geometry and quick connect interface. With a maximum working pressure of 50 psi, it is specified for cooling-system service where reliable sealing and proper routing matter.

This part cross-references URO 11531716642 for the same application. Rein CHR0048 is a practical OE-style replacement when the original lower radiator hose has aged, softened, or developed leaks.

Common Problems This Hose Can Address

• Coolant leaks at the lower radiator hose connection
• Cracked, swollen, or heat-aged hose material
• Damaged quick connector or worn sealing surfaces
• Poor fitment from universal hose substitutions
• Cooling-system service issues caused by reusing old connectors and O-rings

Installation Notes

Verify the vehicle application before installation. This hose is application-specific and uses one quick connect fitting, so the OE routing and connector style should be matched exactly. Inspect mating surfaces, seals, and adjacent cooling components before assembly to help prevent repeat leaks. Because the hose is shaped for the original layout, no cutting or reshaping should be required.

Quality Assurance

Rein designs this radiator hose as an OE-quality replacement for European vehicles, with fit and connector details modeled after the original manufacturer specification. Part number CHR0048 is backed by a 24-month or 24,000-mile warranty.