Gates 12307 Molded HVAC Heater Hose EPDM Rubber 5/16 Inch

The Gates 12307 Molded Heater Hose is a premium OEM-style coolant hose designed to deliver reliable performance in modern, tighter-fitting engine compartments. This factory-molded hose features precision engineering for an exact fit, making installation straightforward and ensuring leak-free operation in demanding automotive and marine applications.

Key Features:

• EPDM rubber construction with synthetic fiber knit reinforcement for superior durability
• Molded design ensures OE-exact fit and proper routing
• Engineered to resist electrochemical degradation, the leading cause of hose failure
• Suitable for coolant, water, and air applications; approved for marine use
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Temperature range: -40°F to 275°F (-40°C to 135°C)
• 5/16 inch (8mm) inside diameter on both ends
• 6-7/16 inch (164mm) centerline length

Gates recommends replacing hose clamps each time a new coolant hose is installed to ensure proper sealing. This hose is built to OEM specifications, providing significant cost savings compared to dealer parts while maintaining the quality and reliability Gates has delivered for over a century.

Important: Not for use with fuel or oil transfer applications.