Rein CHR0405R Radiator Coolant Hose - Upper

Overview of Rein Radiator Coolant Hose CHR0405R

The Rein radiator coolant hose CHR0405R is designed specifically for select BMW models, including the 1 Series M, 135i, 335i, X1, and Z4. Engineered to meet SAE J20 R4 D1 industry standards, this hose offers reliable performance and durability in demanding automotive cooling systems.

• Reduces installation time with a precise fit
• No cutting, refitting, or adjusting required
• Prevents leaks by avoiding reuse of old quick connectors
• Resistant to heat, salt, road debris, oil, and contaminants
• Constructed from durable EPDM hose material
• Centerline length of 11.25 inches (28.575 cm)
• Compatible with multiple BMW models including 1 Series M, 135i, 335i, X1, and Z4

Technical Details and Specifications

The Rein CHR0405R radiator coolant hose is a single hose type made from EPDM, a material known for its excellent resistance to heat and chemical exposure. It features a centerline length of 11.25 inches (28.575 cm) and precise hose end diameters: 1.85 inches (4.699 cm) inside diameter and 2.17 inches (5.512 cm) outside diameter on one end, and 1.81 inches (4.597 cm) inside diameter and 2.05 inches (5.207 cm) outside diameter on the other. This ensures a secure and leak-free connection within the cooling system. The hose is black in color and packaged individually for easy handling.

Compatible BMW Models and Applications

This radiator coolant hose is application-specific and compatible with the following BMW models: 1 Series M, 135i, 135is, 335i, 335is, 335i xDrive, 335xi, X1, and Z4. It is designed to replace original equipment hoses, providing a direct fit without modification.

Common Issues Addressed by Rein Radiator Coolant Hose

• Leaks caused by worn or damaged radiator hoses
• Coolant loss due to improper hose fit or old quick connectors
• Overheating from compromised hose integrity
• Corrosion and damage from exposure to road salt and oil
• Extended installation time due to hose adjustments or cutting

Installation Notes and Tips

The Rein CHR0405R hose is designed for straightforward installation with no need for cutting, refitting, or adjusting. Ensure that old quick connectors are replaced to prevent leaks and future issues. Verify hose orientation and connection points before securing clamps. Using the correct hose size and material helps maintain system integrity and reduces the risk of premature failure.

Quality Assurance and Warranty

Manufactured to meet SAE J20 R4 D1 standards, the Rein radiator coolant hose CHR0405R offers reliable performance under typical operating conditions. The EPDM material provides resistance to heat, oil, and contaminants commonly encountered in automotive environments. While specific warranty details are not provided, Rein products are generally backed by quality manufacturing processes to ensure durability and fitment accuracy.