Rein CHR0399 Radiator Coolant Hose - Upper

OE-Style Radiator Hose for Volkswagen Cooling Systems

Rein CHR0399 is an OE quality radiator coolant hose built for European vehicle cooling systems that use the original-style branch layout and thermoplastic quick connect fittings. It is a direct replacement for the factory hose assembly on select Volkswagen Golf and Volkswagen Jetta applications, with the shape and connection points matched to the OE design.

For Volkswagen Golf and Volkswagen Jetta upper hose service, CHR0399 helps reduce installation time while maintaining the original routing and connection style. The EPDM construction is built to resist heat, salt, road debris, oil, and other contaminants.

Key Features

• Direct replacement radiator coolant hose for application-specific Volkswagen fitment
• OE-matched branched hose design with one branch and one quick connect fitting
• EPDM hose material for cooling-system durability
• Resists heat, salt, road debris, oil, and common underhood contaminants
• Helps reduce installation time by eliminating hose cutting, refitting, or adjusting
• Black finish with OE-style routing and connection geometry
• Built to SAE J20R4D1 industry standards

Detailed Description

Rein CHR0399 is engineered as an OE quality radiator hose assembly for European vehicles, with dimensions and branch shape aligned to the original part. The hose measures 18.5 inches centerline length and uses a branched configuration with one quick connect fitting, making it a direct-fit solution for upper cooling-system service on 2007-2014 Volkswagen Jetta and 2010-2014 Volkswagen Golf applications. This part cross-references Genuine 1K0122101FD for the same application.

As a Rein radiator hose, CHR0399 is designed to match the factory hose layout rather than requiring modification during installation. The OE-style thermoplastic quick connect helps maintain the original connection method on Volkswagen Golf and Volkswagen Jetta cooling systems.

What It Helps Address

• Cracked or deteriorated upper radiator hose assemblies
• Leaks at aged quick connectors or worn O-rings
• Cooling-system service delays caused by hose modification
• Fitment issues from using non-OE-shaped replacement hoses
• Contamination-related hose wear from heat and underhood exposure

Installation Notes and Tips

Fits 2010-2014 Volkswagen Golf, upper. Fits 2008-2014 Volkswagen Jetta, upper. Fits 2007 Volkswagen Jetta, upper, from 12/1/06 with quick connectors. Verify the hose routing, connector style, and upper-position application before installation. Reusing old quick connectors or O-rings can lead to leaks, so inspect all sealing surfaces carefully during service.

Quality Assurance

Rein builds CHR0399 as an OE quality replacement radiator hose for European applications, with direct-fit dimensions and OE-style connection points. Part number CHR0399 is backed by a 24-month, 24,000-mile warranty.