Gates 18051 HVAC Heater Hose

Gates 18051 Molded Heater Hose Overview

The Gates 18051 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not route cleanly. Made from EPDM, it is shaped for factory-style fitment and can be used in coolant, water, and air applications, with marine application approval noted by the manufacturer.

Gates Molded Heater Hose line focuses on small inside diameter hoses formed to match compact routing needs in HVAC and cooling systems. For Dodge B150, B250, B350, Ram van, and Jeep Cherokee applications, this molded design helps maintain the correct path through crowded underhood layouts.

• EPDM construction for heater, coolant, water, and air service
• Factory-molded shape for tighter engine compartments
• Small I.D. hose design for HVAC heater hose routing
• OEM-style replacement for select Dodge and Jeep applications
• Approved for marine applications per manufacturer description
• Part number 18051 for catalog and fitment lookup

Detailed Product Description

Gates 18051 measures 12 inches centerline length, with a 0.5 inch inside diameter at one end and 0.62 inch at the other. The molded profile is intended to follow the original routing used on select vehicles, including 1986-1996 Dodge B150, B250, and B350 models, 1995-1996 Dodge Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van, plus 1987-1990 Jeep Cherokee, Comanche, and Wagoneer applications. This part cross-references Continental 63145 for the same application.

Common Uses

• Replacing a cracked or heat-aged HVAC heater hose
• Restoring coolant flow in auxiliary heater routing
• Correcting leaks at molded hose bends and transitions
• Addressing hose collapse or softening in EPDM service lines
• Repairing fitment issues in compact engine bay hose routing

Installation Notes and Tips

Verify end diameters, centerline length, and routing before installation. This hose is listed for multiple positions, including Tee-1 To Pipe-1, Tee-2 To Pipe-2, Tee-2 To Pipe-3, Pipe-2 To Tee-2, Tee-1 To Valve, Valve To Reservoir, and Tee-1 To Auxiliary Pipe-1, so match the vehicle’s original hose path before trimming or connecting. For Dodge B150, B250, and B350 heater hose service, confirm whether the vehicle uses A/C and auxiliary heater equipment, since fitment notes vary by configuration.

Quality Assurance

Gates manufactures this molded hose as an OEM-style replacement built to factory dimensions and material standards for the listed applications. The EPDM construction and molded shape support consistent routing in HVAC and coolant systems, including select Dodge and Jeep fitments.