Gates 18915 HVAC Heater Hose

Gates 18915 Molded Heater Hose Overview

The Gates 18915 molded heater hose is a factory-shaped coolant hose built for tight engine compartments where a straight hose will not route correctly. It is made from EPDM and is approved for coolant, water, air, and marine applications, making it a practical OE-style replacement for select Chrysler, Dodge, and Plymouth vehicles.

As part of the Gates Molded Heater Hose line, this hose is formed to match the routing needed in compact HVAC and cooling system layouts. The molded design helps maintain proper fit around nearby components in applications such as Dodge Caravan, Grand Caravan, and Plymouth Voyager heater hose routing.

Key Features

• Gates part number 18915
• Factory-molded, OE-style heater hose shape
• EPDM construction for coolant system service
• Small inside diameter design for tighter engine bays
• Approved for coolant, water, air, and marine use
• End sizes: 16 mm (0.62 in) and 18 mm (0.72 in)
• Centerline length: 1039 mm (40.9 in)

Detailed Product Description

The Gates 18915 molded coolant hose is engineered for HVAC heater hose service where exact routing matters. Its molded profile supports proper alignment in applications that use heater-to-pipe, heater-to-tee, and valve-to-water-pump routing. This makes it a direct-fit style solution for vehicles that need a shaped hose rather than a universal straight length. If you are searching for a Gates 18915 heater hose for Chrysler Town & Country or a molded heater hose for Dodge Caravan applications, this part matches the listed configurations.

This hose cross-references Dayco 87720 and Four Seasons 63120 for the same application.

What It Helps Address

• Cracked or leaking heater hose sections
• Incorrect hose routing in confined engine compartments
• Coolant loss at molded hose bends and connection points
• Heat-related hose deterioration in HVAC coolant circuits
• Replacement needs for select Chrysler, Dodge, and Plymouth heater hose layouts

Installation Notes and Tips

• Verify the vehicle’s heater hose routing position before installation: heater to pipe, heater to tee, heater to pipe-1, heater to pipe-2, or valve to water pump.
• Some listed applications note that a protective sleeve is required.
• Confirm end diameters and centerline length against the removed hose before installation.
• Inspect adjoining pipes, tees, clamps, and coolant condition before reassembly.
• Use the vehicle’s service procedure for coolant refill and air bleeding after replacement.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement built to the dimensional and material requirements listed for the application. The EPDM construction and factory-molded shape support consistent fitment in the specified Chrysler, Dodge, and Plymouth cooling system layouts.

• Compatible with 1990-1995 Chrysler Town & Country, heater to pipe-1 and heater to tee
• Compatible with 1990-1995 Dodge Caravan and Grand Caravan, heater hose routing applications
• Compatible with 1990-1995 Plymouth Voyager and Grand Voyager, heater hose routing applications