Gates 51439 Modular Coolant Heater Hose Assembly

The Gates 51439 is a precision-engineered modular coolant hose assembly designed to replace OEM heater hoses with exact-fit specifications. This premium hose features integrated components such as quick-connectors and fittings that are molded directly into the assembly for reliable, leak-free performance.

Key Features:

• EPDM rubber construction with synthetic fiber knit reinforcement for superior durability
• Engineered to resist electrochemical degradation (ECD), the leading cause of coolant hose failure
• Heat and ozone resistant cover withstands extreme temperature conditions
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Specifically-engineered materials resist vacuum collapse without internal springs
• Meets or exceeds SAE 20R3 EC Class D1 and SAE 20R4 EC Class D1 specifications
• Pre-shaped to OEM specifications for perfect fit and sealed connections
• One-year manufacturer warranty included

Gates modular coolant hoses are manufactured to match original equipment specifications and include the same integrated components found on factory hoses. This eliminates the need for multiple separate parts and ensures proper coolant flow through your vehicle's heating and cooling system. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing performance.