Rein CHR0046R Radiator Coolant Hose - Lower - Radiator To Water Pump

OE Quality Lower Radiator Hose

Rein CHR0046R is an OE-quality radiator coolant hose for European vehicle cooling systems. It is built as a direct replacement for the original hose assembly, with the same branch shape and thermoplastic quick-connect fitment details used by the factory design.

Compatible with 1988-1993 Mercedes-Benz 260E, 300CE, 300E, and 300TE lower radiator to water pump applications, this hose is made for accurate fitment and straightforward service work. Rein CHR0046R is a practical choice when replacing a worn Mercedes-Benz 300E lower coolant hose or a Mercedes-Benz 300TE radiator-to-water-pump hose.

Key Features

• Direct-fit replacement for OE radiator hose assemblies
• Reduces installation time by matching the original routing and connection style
• No cutting, refitting, or hose adjustment required
• Helps prevent leaks and repeat repairs from reusing old quick connectors and O-rings
• EPDM hose construction resists heat, salt, road debris, oil, and other contaminants
• Built to SAE J20 R4 D1 standards
• Black finish with a single-hose design
• Maximum working pressure: 130 psi

Product Details

This Rein radiator coolant hose measures 11.5 inches centerline length and uses 1.38-inch inside diameter ends with 1.65-inch outside diameter connections. The hose is engineered for the lower radiator to water pump position on select Mercedes-Benz applications, including 1988-1993 Mercedes-Benz 300E and 300TE, plus 1988-1989 Mercedes-Benz 260E and 300CE. Rein CHR0046R is designed to restore proper coolant flow with an OE-style fit that follows the original hose geometry.

This part cross-references URO 1245013382 for the same application.

Common Cooling System Issues It Can Address

• Coolant seepage at aged hose connections
• Cracked, hardened, or swollen lower radiator hose material
• Poor sealing from worn quick-connect fittings or O-rings
• Incorrect hose routing after prior repairs
• Cooling system service delays caused by trimming or adapting the hose

Installation Notes

Verify the vehicle build range before ordering, since some 1988 Mercedes-Benz applications require VIN-specific fitment. Confirm the lower radiator to water pump routing matches the original hose layout on the vehicle. Inspect mating connectors, clamps, and sealing surfaces before installation, and replace any damaged components to maintain a proper seal.

Quality Assurance

Rein designs this hose as an OE-quality replacement for European vehicles, with factory-style dimensions and connector details that follow the original application. Part number CHR0046R is backed by a 24-month warranty with 24,000-mile coverage.