Gates 51589 Molded Coolant Hose

The Gates 51589 Molded Coolant Hose is a precision-engineered OEM-quality replacement hose designed for upper, lower, bypass, heater, and other engine coolant applications. This pre-shaped hose is manufactured to exact specifications to ensure a perfect fit and proper sealed connections without the need to visit an OE dealer.

Key Features:

• Engineered to resist electrochemical degradation (ECD), the leading cause of coolant hose failure
• EPDM tube construction with synthetic fiber knit reinforcement for superior durability
• Heat- and ozone-resistant EPDM cover for extended service life
• Pre-molded to fit specific applications for perfectly sealed conditions
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Specifically engineered materials resist vacuum collapse
• Meets SAE 20R4 EC Class D1 specifications
• Approved for marine applications

Gates molded coolant hoses are built with advanced compound materials that prevent the formation of micro-cracks caused by electrochemical reactions between the hose, coolant, and metal fittings. This technology ensures longer hose life and reliable cooling system performance. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing.