Gates 18759 HVAC Heater Hose

Overview

Gates 18759 is a molded HVAC heater hose built in an OEM-style shape for tight engine compartments. It uses EPDM construction and is formed to follow the routing needed for specific Dodge and Plymouth applications.

This molded heater hose is used in heater and coolant routing where a formed hose is required. It is a fitment-based replacement for select Dodge Caravan, Plymouth Voyager, Dodge Grand Caravan, Dodge Mini Ram, and Plymouth Grand Voyager applications.

Key Features

• Factory-molded design for accurate hose routing
• EPDM construction for coolant, water, and air service
• Small inside diameters for compact HVAC and heater connections
• OEM-style shape for tighter engine bay packaging
• Approved for marine applications

Detailed Description

Gates 18759 is a molded heater hose designed around small-diameter, formed routing needs. The hose measures 21.7 inches centerline length, with 16 mm and 19 mm end inside diameters, and its molded shape helps match the original hose path in vehicles with limited clearance. Gates Molded Heater Hose products are built for applications where a straight hose will not follow the required route cleanly.

Compatible With 1992-1995 Dodge Caravan, Heater To Engine; 1994-1995 Plymouth Voyager, Heater To Engine; 1991-1992 Plymouth Voyager, Heater To Engine; 1993 Plymouth Voyager, Heater To Valve; 1988-1991 Dodge Caravan, Heater To Pipe-1; 1991 Dodge Caravan, Heater To Pipe-1; 1988-1991 Plymouth Voyager, Heater To Pipe-1; 1988-1990 Dodge Caravan, Pipe-2 To Engine; 1988-1990 Plymouth Voyager, Heater To Pipe-1; 1988-1990 Plymouth Voyager, Pipe-2 To Engine; 1988-1989 Dodge Grand Caravan, Heater To Pipe-1; 1988-1989 Dodge Grand Caravan, Pipe-2 To Engine; 1988 Dodge Mini Ram, Pipe-2 To Engine; 1988 Dodge Mini Ram, Heater To Pipe-1; 1988 Plymouth Grand Voyager, Pipe-2 To Engine; 1988 Plymouth Grand Voyager, Heater To Pipe-1; 1988 Plymouth Grand Voyager, Heater To Pipe-1.

This part cross-references Four Seasons 63114 and CSF 10759 for the same application.

Common Uses

• Replacing a cracked or leaking heater hose
• Restoring coolant flow through the heater circuit
• Correcting hose routing in a tight engine compartment
• Addressing softening, swelling, or collapse in an aging hose
• Repairing a hose that no longer matches the original molded path

Installation Notes

Verify the hose routing, end diameters, and heater connection points before installation. This hose is listed for specific heater-to-engine, heater-to-pipe, and heater-to-valve positions, so match the vehicle notes carefully, including A/C and auxiliary-heater restrictions where shown. Clean the mating tubes and inspect adjacent clamps and fittings before installing the new hose.

Quality Assurance

Gates Molded Heater Hose is an OEM-style replacement line built for formed hose applications in compact engine bays. The EPDM construction and molded profile support consistent fitment for the listed applications.