Gates 18806 HVAC Heater Hose - Heater To Pipe-1, Heater To Valve or Pipe-2 To Engine

Gates 18806 Molded Heater Hose Overview

The Gates 18806 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not route correctly. Its factory-molded shape supports heater, coolant, water, and air transfer needs, and it is approved for marine applications.

Made from EPDM and formed with a 16 mm (0.62 in) inside diameter at both ends, this molded heater hose measures 19.8 in (503 mm) along the centerline for a precise routing profile. It is a practical replacement for vehicles that need a formed hose shape, including Chrysler Voyager, Dodge Caravan, and Toyota Cressida applications.

Key Features

• Gates Molded Heater Hose, part number 18806
• Factory-molded, OE-style construction for compact engine bays
• EPDM material for coolant, water, and air service
• 16 mm (0.62 in) inside diameter at both ends
• 19.8 in (503 mm) centerline length
• Approved for marine applications
• Compatible with heater hose routing in Chrysler Voyager, Dodge Caravan, Mazda RX-7, and Toyota Cressida applications

Product Details

Gates Molded Heater Hose line products are shaped to follow the original hose path, which helps maintain proper routing around nearby components in smaller engine compartments. The Gates 18806 uses EPDM construction and a molded profile to match the demands of heater and coolant circuits where a formed replacement is required. This part cross-references Dayco 87844 for the same application.

Common Uses

• Replacing a cracked or heat-aged heater hose
• Restoring coolant flow between the heater circuit and pipe or valve connections
• Correcting hose routing in tight engine compartments
• Addressing leaks caused by hose hardening, swelling, or splitting
• Replacing a formed hose that no longer holds its original shape

Installation Notes and Tips

Verify hose routing, end diameter, and centerline length before installation. Compare the molded shape to the original hose path on the vehicle to confirm proper alignment at the heater pipe, engine, or valve connection. Inspect adjoining clamps, pipes, and fittings for corrosion or wear before installing the new hose.

Fits 2000 Chrysler Voyager, Heater To Pipe-1. Fits 1997-2000 Dodge Caravan, Heater To Pipe-1. Fits 1997-2000 Plymouth Voyager, Heater To Pipe-1. Fits 1997 Dodge Grand Caravan, Heater To Pipe-1. Fits 1997 Plymouth Grand Voyager, Heater To Pipe-1. Fits 1993-1995 Mazda RX-7, Pipe-2 To Engine. Fits 1985-1988 Toyota Cressida, Heater To Valve.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement part for vehicle cooling and heater system service. The formed EPDM construction and application-specific dimensions support consistent fitment across the listed Chrysler Voyager, Dodge Caravan, Mazda RX-7, and Toyota Cressida applications.