Gates 18030 HVAC Heater Hose

Gates Molded Heater Hose 18030 Overview

The Gates Molded Heater Hose 18030 is a factory-molded, OEM-style coolant hose built for tight engine compartments and small-diameter routing. Made from EPDM, it is used in coolant, water, and air applications and is approved for marine use.

With a 10 mm inside diameter at both ends and a 244 mm centerline length, this molded hose supports precise routing where a straight hose will not match the original path. It is a direct-fit style solution for a wide range of HVAC and cooling system applications, including Toyota RAV4, Ford F-250, and Chevrolet Impala fitments.

Key Features

• Gates Molded Heater Hose, part number 18030
• Factory-molded OEM-style shape for compact engine bays
• EPDM construction for coolant, water, and air service
• 10 mm inside diameter at both ends
• 244 mm centerline length for formed routing
• Approved for marine applications
• Cross-reference: Dayco 87000

Product Details

This molded heater hose is built for vehicles that require a formed coolant hose to maintain proper routing around throttle bodies, intake manifolds, thermostats, turbochargers, and radiator connections. The Gates Molded Heater Hose line focuses on OE-style fitment, making it a practical replacement when the original hose follows a curved or offset path. Part number 18030 is listed across many applications, including 2013-2018 Toyota RAV4, 1994-1997 Ford F-150, and 1994-1996 Chevrolet Impala.

Because this hose is molded rather than straight, it helps preserve factory routing in crowded engine compartments where clearance matters. It is also listed for a broad range of older domestic and import vehicles, including Ford truck, GM passenger car, Hyundai, Mitsubishi, Nissan, and Volkswagen applications.

Common Problems It Can Address

• Cracked or leaking molded heater hose sections
• Improper hose routing after cooling system service
• Kinked hoses caused by tight bends in the engine bay
• Loss of coolant flow through damaged heater or bypass lines
• Replacement needs for throttle body, thermostat, or intake manifold hose runs

Installation Notes and Tips

Verify end diameters, centerline length, and routing before installation. This hose is molded for specific applications, so compare the original hose shape and connection points to the vehicle’s cooling system layout. For fitment reference, it is listed for 2013-2018 Toyota RAV4, Pipe-1 To Engine; 1994-1997 Ford F-150, Tee To Intake Manifold; and 1994-1996 Chevrolet Impala, Pipe To Throttle Body.

Inspect adjoining clamps, pipes, and fittings for wear before installing the new hose. Confirm the hose path is free of sharp edges and heat sources to maintain proper coolant system performance.

Quality Assurance

Gates manufactures this hose as an OE-style molded replacement for modern and older vehicle cooling system layouts. The EPDM construction and factory-molded profile support consistent fitment across the listed applications, including Toyota RAV4, Ford F-250, and Chevrolet Impala configurations. Part number 18030 is also referenced by Dayco 87000 for the same application.