Rein CHR0403R Radiator Coolant Hose - Lower

Overview of Rein Radiator Coolant Hose CHR0403R

The Rein radiator coolant hose CHR0403R is designed specifically for Mercedes-Benz CL550, S450, and S550 models. Engineered to meet precise application requirements, this hose ensures reliable coolant flow and system integrity without the need for modifications during installation.

• Reduces installation time with a direct fit design
• No cutting, refitting, or adjusting required
• Prevents leaks by eliminating reuse of old quick connectors
• Resistant to heat, salt, road debris, oil, and other contaminants
• Constructed from durable EPDM material for long-lasting performance

Technical Details and Specifications

This branched radiator coolant hose measures 16 inches (40.64 cm) in centerline length and features three hose ends with precise inside and outside diameters to match factory specifications. Hose End 1 and Hose End 3 both have an inside diameter of 1.38 inches (3.51 cm) and an outside diameter of 1.69 inches (4.29 cm), while Hose End 2 has an inside diameter of 0.71 inches (1.80 cm) and an outside diameter of 0.98 inches (2.49 cm). Manufactured in Turkey, the hose complies with DIN 73411 industry standards, ensuring quality and compatibility. The black EPDM material offers excellent resistance to heat and chemical exposure common in automotive cooling systems.

Compatible Vehicles and Applications

This radiator coolant hose CHR0403R is compatible with the following Mercedes-Benz models:

• Mercedes-Benz CL550
• Mercedes-Benz S450
• Mercedes-Benz S550

It is designed for application-specific use in these vehicles, providing a direct replacement for the original equipment hose without the need for modifications.

Common Issues Addressed by This Radiator Coolant Hose

• Leaks caused by worn or damaged hoses
• Coolant system failures due to improper hose fitment
• Corrosion and degradation from exposure to road salt and oil
• Time-consuming installation processes requiring hose cutting or adjustment
• Failures related to reusing old quick connectors

Installation Notes and Tips

The Rein radiator coolant hose CHR0403R is designed for straightforward installation with no cutting, refitting, or adjusting necessary. Ensure all old quick connectors are replaced to prevent leaks and system failures. Verify hose end diameters match your vehicle’s specifications before installation. Use appropriate clamps and follow manufacturer torque specifications to secure the hose properly.

Quality Assurance and Warranty

Manufactured to meet DIN 73411 standards, this Rein radiator coolant hose offers reliable performance under demanding conditions. The EPDM construction provides resistance to heat, salt, oil, and road debris, contributing to long service life. While specific warranty details are not provided, Rein products typically adhere to strict quality control processes to ensure durability and fitment accuracy for Mercedes-Benz CL550, S450, and S550 models.