Gates 51645 Upper Radiator Modular Coolant Hose

The Gates 51645 is a premium modular coolant hose designed to meet OEM specifications for upper radiator applications. This advanced hose assembly features integrated components including quick-connect fittings and branch connections, eliminating the need for separate adapters and reducing installation time.

Key Features:

• Modular design with 2 female quick connectors and integrated branch assembly
• EPDM construction with synthetic fiber reinforcement and heat-resistant cover
• Centerline length of 25.5 inches with multiple connection points
• End 1 inside diameter: 1.3 inches, End 2 inside diameter: 1.38 inches
• Engineered to resist electrochemical degradation, the leading cause of hose failure
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Specifically designed materials resist vacuum collapse without internal springs
• Meets SAE 20R3 EC Class D1 and SAE 20R4 EC Class D1 specifications
• Resistant to heat, ozone, and chemical coolants

This precision-molded hose is engineered for a direct fit replacement, matching OEM part number 5C0122101AA. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing performance. Not for use with fuel or oil transfer applications.