Gates 19802 HVAC Heater Hose

Gates 19802 Molded Heater Hose Overview

The Gates 19802 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not route correctly. It is formed to match factory-style bends and is made from EPDM for coolant, water, and air service, with marine application approval noted by the manufacturer.

For Chevrolet Silverado 2500 HD, GMC Sierra 3500, and other listed applications, this molded heater hose supports a direct-fit replacement path when the original hose has softened, cracked, or lost its shape. Gates Molded Heater Hose 19802 is shaped for smaller, tighter-fitting engine compartments.

Key Features

• Brand: Gates Molded Heater Hose
• Part number: 19802
• Factory-molded, OEM-style hose profile
• EPDM construction for coolant, water, and air applications
• Small I.D. design for tighter engine compartment routing
• Molded construction with no branch quantity
• End sizes: 0.87 in (22 mm) to 1.00 in (25 mm)
• Centerline length: 5.1 in (130 mm)

Product Details

Gates 19802 is a molded heater hose engineered to follow the original routing used on select Chevrolet and GMC trucks and vans from 2001 through 2007. The molded shape helps maintain proper hose alignment around nearby components, while the EPDM material is suited for heater and coolant circuit service. This part cross-references Continental 63962 for the same application.

Compatible vehicle coverage includes Fits 2001-2006 Chevrolet Silverado 2500 HD, N/A; Fits 2001-2006 Chevrolet Silverado 3500, N/A; Fits 2001-2006 Chevrolet Suburban 2500, N/A; Fits 2001-2006 GMC Sierra 2500 HD, N/A; Fits 2001-2006 GMC Sierra 3500, N/A; Fits 2001-2006 GMC Yukon XL 2500, N/A; Fits 2001-2002 Chevrolet Express 3500, N/A; Fits 2001-2002 GMC Savana 3500, N/A; Fits 2002-2006 Chevrolet Avalanche 2500, N/A; Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A; Fits 2007 Chevrolet Silverado 3500 Classic, N/A; Fits 2007 GMC Sierra 2500 HD Classic, N/A; Fits 2007 GMC Sierra 3500 Classic, N/A.

Common Uses

• Replacing a cracked or collapsed heater hose
• Restoring coolant flow in the heater circuit
• Correcting hose routing in a tight engine compartment
• Addressing leaks at a molded hose section
• Replacing a hose that no longer holds its factory shape

Installation Notes and Tips

Verify end diameters and molded shape against the original hose before installation. Inspect adjoining heater pipes, clamps, and connection points for wear or corrosion so the new hose seals properly. Confirm routing clears belts, pulleys, and hot engine components on Chevrolet Silverado 2500 HD, GMC Sierra 3500, and other listed vehicles.

Quality Assurance

Gates manufactures this hose as an OEM-style molded replacement for heater and coolant service. The EPDM construction and factory-molded profile support consistent fitment on the listed applications, including Gates 19802 use cases across Chevrolet and GMC platforms.