Gates 19773 HVAC Heater Hose - Valve To Engine

Gates 19773 Molded Heater Hose Overview

The Gates Molded Heater Hose, part number 19773, is a factory-molded coolant hose built for tight engine bays and OE-style routing. It is made from EPDM and measures 19.1 in. centerline length with 19 mm inside diameter at both ends for a precise replacement fit.

Compatible With 1996-2002 Chevrolet Express 1500, Valve To Engine; 1996-2002 Chevrolet Express 2500, Valve To Engine; 1996-2002 Chevrolet Express 3500, Valve To Engine; 1996-2002 GMC Savana 1500, Valve To Engine; 1996-2002 GMC Savana 2500, Valve To Engine; and 1996-2002 GMC Savana 3500, Valve To Engine.

Key Features

• Gates Molded Heater Hose line for OE-style coolant hose replacement
• Part number 19773 for direct reference and catalog matching
• EPDM construction for coolant, water, and air service
• Factory-molded shape for smaller, tighter engine compartments
• 19 mm inside diameter at both ends
• 19.1 in. centerline length for routing accuracy
• Approved for marine applications

Detailed Description

Gates 19773 is a molded HVAC heater hose engineered to follow the original hose path in applications where straight hose would not maintain the correct routing. The molded profile helps it clear nearby components in compact engine compartments, making it a practical replacement for service on Chevrolet Express and GMC Savana vans from 1996-2002. This hose is also suitable for coolant, water, and air applications, and the EPDM material supports everyday underhood use.

The Gates Molded Heater Hose product line focuses on factory-shaped replacement hoses that match OE-style routing requirements. For buyers searching for a molded heater hose for Chevrolet Express 1500, Chevrolet Express 2500, or GMC Savana 3500, part number 19773 provides a catalog-specific match for the valve-to-engine position.

This part cross-references Continental 64187 for the same application.

Common Problems This Hose Can Address

• Cracked or leaking heater hose at the valve-to-engine route
• Incorrect hose shape that interferes with nearby engine components
• Restricted coolant flow caused by a deteriorated molded hose
• Service replacement needs on Chevrolet Express and GMC Savana vans
• Hose routing issues in compact engine compartments

Installation Notes and Tips

Verify the valve-to-engine routing before installation and compare the hose shape, end diameters, and centerline length to the removed part. Confirm that the vehicle is equipped without an auxiliary heater and with air conditioning, as listed in the fitment notes for this application. Inspect adjoining clamps, fittings, and mating surfaces for wear before installing the new hose.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement with factory-molded dimensions for accurate fitment in the listed Chevrolet Express and GMC Savana applications. Part number 19773 is built to Gates material and dimensional standards for service replacement use.