Gates 51731 Modular Coolant Hose Assembly with Quick Connect Fittings

The Gates 51731 is a premium modular coolant hose assembly engineered for precise OEM-quality fitment in modern automotive cooling systems. This pre-formed hose measures 27 inches in centerline length and features an integrated multi-branch design with two quick-connect fittings for simplified installation.

Key Features:

• EPDM rubber construction with synthetic fiber knit reinforcement for exceptional durability
• Four-end configuration: 5/16-inch, 5/8-inch, and two 1-1/4-inch diameter connections
• Engineered to resist electrochemical degradation, the leading cause of coolant hose failure
• Specifically-designed materials resist vacuum collapse without internal springs
• Heat, ozone, and chemical coolant resistant EPDM cover
• Meets SAE 20R3 EC Class D1 and SAE 20R4 EC Class D1 specifications
• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Approved for marine applications

This modular assembly includes essential OE-integrated components such as hose branches, quick-connectors, and precision-molded sections for reliable, leak-free performance. Gates recommends replacing hose clamps each time a new coolant hose is installed. Not for use with fuel or oil transfer applications.