Gates 12245 Molded Heater Hose 3/4" to 13/16" Dual ID EPDM

The Gates 12245 is a premium molded heater hose featuring a centerline length of 13-7/16 inches (341mm) with dual inside diameters of 3/4 inch (18mm) at one end and 13/16 inch (21mm) at the other end. This factory-molded, OEM-style hose is specifically engineered to fit today's smaller, tighter-fitting engine compartments while providing reliable coolant flow for automotive heating systems.

Key Features:

• Constructed from premium EPDM rubber with synthetic fiber knit reinforcement and EPDM cover
• Engineered to resist electrochemical degradation - the leading cause of heater hose failure
• Temperature range: -40°F to 275°F (-40°C to 135°C)
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Approved for marine applications in addition to automotive use
• Can be used for coolant, water, and air applications

This molded heater hose features all the quality characteristics of Gates molded coolant hose and adheres to OEM specifications for reliable, long-lasting performance. The pre-molded design ensures proper fit and sealed connections while the dual inside diameter configuration accommodates diameter changes in heating system plumbing. Gates recommends replacing hose clamps each time a new coolant hose is installed. Not for use in fuel or oil transfer applications.