Gates 19761 HVAC Heater Hose - Engine To Heater or Heater To Valve (Lower)

Gates 19761 Molded Heater Hose Overview

The Gates 19761 molded heater hose is an OEM-style coolant hose built for tight engine bays and factory routing. It is formed to match the original path on select Chevrolet Express, GMC Savana, Astro, and Safari applications, making it a direct replacement for engine-to-heater and heater-to-valve lower hose locations.

Made from EPDM, this molded heater hose is suitable for coolant, water, and air service, and Gates also approves it for marine applications. The molded shape and small inside diameter help it follow the original hose path in compact HVAC and cooling layouts.

Key Features

• Gates molded heater hose, part number 19761
• EPDM construction for coolant, water, and air applications
• Factory-molded, OEM-style shape for tighter engine compartments
• End inside diameter: 19 mm (0.74 in) at both ends
• Centerline length: 780 mm (30.7 in)
• Compatible with engine-to-heater and heater-to-valve lower routing shown in the fitment data
• Cross-reference: Dayco 88497 for the same application

Product Details

Gates Molded Heater Hose line products are built around original-equipment style routing and fitment, which is important when replacing a formed hose in a crowded engine compartment. This Gates 19761 hose follows the molded path needed for select Chevrolet Express and GMC Savana vans, as well as Chevrolet Astro and GMC Safari models, where the hose must clear nearby components and maintain proper coolant flow. The 19 mm hose ends and 780 mm centerline length support the specified factory-style layout.

Fits 2003-2017 GMC Savana 2500, engine to heater; fits 2003-2017 GMC Savana 3500, engine to heater; fits 2003-2015 Chevrolet Express 2500, engine to heater; fits 2003-2015 Chevrolet Express 3500, engine to heater; fits 2003-2014 Chevrolet Express 1500, engine to heater; fits 2003-2014 GMC Savana 1500, engine to heater; fits 1996-2005 Chevrolet Astro, heater to valve (lower); fits 2005 Chevrolet Silverado 2500, engine to heater; fits 1996-2005 GMC Safari, heater to valve (lower).

Common Uses

• Replacing a cracked or leaking heater hose on Chevrolet Express and GMC Savana vans
• Restoring coolant circulation between the engine and heater core circuit
• Replacing a formed lower heater-to-valve hose on Chevrolet Astro and GMC Safari
• Addressing hose collapse, hardening, or heat-related deterioration
• Maintaining factory-style hose routing in compact engine compartments

Installation Notes

Verify hose routing, end diameter, and centerline length against the original part before installation. This molded hose is intended for the listed engine-to-heater and heater-to-valve lower positions, so confirm the vehicle’s HVAC configuration and hose path match the fitment notes, including applications without A/C and without auxiliary heater where specified. Inspect adjoining heater tubes, clamps, and coolant connections for wear before installing the replacement hose.

Quality Assurance

This Gates heater hose is built from EPDM and follows an OEM-style molded design for the listed applications. Gates identifies this hose as suitable for coolant, water, air, and marine use, supporting dependable service in the specified HVAC and cooling system locations.