Gates 19039 HVAC Heater Hose

Gates Molded Heater Hose for Tight Engine Bays

The Gates Molded Heater Hose, part number 19039, is a factory-molded coolant hose built for compact engine compartments where a straight hose will not route correctly. It is an OEM-style EPDM hose for coolant, water, and air service, and it is also approved for marine applications.

For Jeep Wrangler, Jeep TJ, Jeep Cherokee, and Saturn Vue applications, this molded hose follows the original routing needed for heater and coolant connections. Gates 19039 is shaped to match the vehicle layout and help maintain a proper fit in confined HVAC and cooling system spaces.

Key Features

• Gates Molded Heater Hose, part number 19039
• OEM-style factory-molded construction
• EPDM material for coolant, water, and air applications
• Approved for marine applications
• End I.D.: 0.72 in. (18 mm)
• Centerline length: 32.9 in. (836 mm)
• Molded design for tighter engine compartments

Product Details

This molded heater hose is built to replace routed hoses that must bend around engine components without kinking or collapsing. The Gates Molded Heater Hose line is focused on OE-style shape and fit, making it a practical choice when the original hose path matters. Part number 19039 is listed for heater inlet, heater-to-thermostat, heater-to-pipe, and engine-to-tee positions across select Jeep and Saturn applications.

Compatible vehicle coverage includes 1997-2001 Jeep Cherokee, heater inlet; 1997-1998 Jeep TJ and Wrangler, heater to thermostat; 1999-2000 Jeep TJ and Wrangler, heater to thermostat; 2001-2003 Jeep TJ and Wrangler, heater to thermostat; 2004-2006 Jeep TJ and Wrangler, heater to pipe; and 2004-2007 Saturn Vue, engine to tee. This part cross-references Dayco 87794 for the same application.

Common Uses

• Replacing a cracked or hardened heater hose
• Restoring coolant flow between the engine and heater circuit
• Correcting a hose route that no longer matches the factory path
• Addressing leaks at molded hose bends or connection points
• Servicing Jeep Wrangler, Jeep TJ, Jeep Cherokee, and Saturn Vue cooling systems

Installation Notes

Verify hose routing, end diameter, and centerline length before installation. Because this is a molded hose, align it to the original path in the engine bay before securing the connections. Inspect adjoining pipes, tees, clamps, and thermostat housing surfaces for wear or corrosion so the new hose seats correctly.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement built from EPDM for coolant-system service. The molded construction supports accurate routing in compact engine compartments and is approved for marine applications.