Gates 18422 HVAC Heater Hose

Gates 18422 Molded Heater Hose Overview

The Gates 18422 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not route correctly. Made from EPDM and factory-molded to the proper shape, it supports coolant, water, and air transfer and is also approved for marine applications.

Compatible With select Suzuki Grand Vitara, XL-7, Vitara, Chevrolet Tracker, Metro, Pontiac Firefly, Swift, Sunrunner, Geo Metro, Tracker, and Honda Accord applications, this molded heater hose follows the original routing needed for heater and intake manifold connections. Gates Molded Heater Hose 18422 is a direct-fit style solution for vehicles that require a formed hose profile.

Key Features

• OEM-style molded heater hose for precise routing in compact engine bays
• EPDM construction for coolant, water, and air service
• Factory-molded shape helps match original hose path
• 0.5 in. inside diameter at both ends
• 10.5 in. centerline length
• Approved for marine applications
• Cross-reference: Continental 63156

Detailed Description

Gates 18422 is part of the Molded Heater Hose line, a product family focused on formed coolant hoses that follow OE-style bends and fitment. This hose measures 0.5 inch inside diameter at both ends with a 10.5 inch centerline length, making it suitable for applications that require a molded connection between the heater, intake manifold, pipe, or engine-side routing points. It is listed for multiple vehicle platforms, including 1999-2008 Suzuki Grand Vitara, 2002-2006 Suzuki XL-7, 2001-2004 Chevrolet Tracker, and 1988-1989 Honda Accord.

This part number, 18422, is also referenced across several interchange listings for the same application family. If you are replacing a formed heater hose on a Suzuki Grand Vitara or Chevrolet Tracker, the molded profile helps maintain the original hose path in tighter engine compartments.

What It Helps Address

• Cracked or hardened heater hose material
• Coolant leaks at molded hose sections
• Poor hose routing in tight engine compartments
• Replacement needs for heater-to-pipe, heater-to-engine, or intake-manifold connections
• Service on vehicles requiring an OE-style formed hose

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length against the removed part before installation. Confirm the vehicle position listed for your application, such as heater to pipe, heater to intake manifold, or heater to engine, since the same part number is used across multiple routing layouts. Inspect adjoining clamps, pipes, and fittings for wear or corrosion before installing the new hose.

For fitment, this hose is listed for applications such as Fits 1999-2008 Suzuki Grand Vitara, Heater To Pipe-1; Fits 2002-2006 Suzuki XL-7, Heater To Pipe-1; Fits 2001-2004 Chevrolet Tracker, Heater To Pipe-1; and Fits 1988-1989 Honda Accord, Intake Manifold To Pipe-1.

Quality Assurance

Gates is known for OE-style hose construction and application-specific molded routing. The 18422 molded heater hose is built to match the shape and service requirements of listed vehicle applications, with EPDM material selected for coolant-system use.