Gates 19747 HVAC Heater Hose - Heater To Pipe-2

Gates 19747 Molded Heater Hose Overview

The Gates 19747 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a formed routing path matters. It is made from EPDM and measures 14.7 inches centerline length with 18 mm inside diameter at both ends, making it a direct-fit style solution for select Chevrolet S10, GMC Sonoma, and Isuzu Hombre heater hose applications.

Key Features

• Factory-molded design for precise routing in compact engine bays
• EPDM construction for coolant, water, and air service
• 18 mm inside diameter at both ends
• 14.7 in. centerline length for the specified HVAC heater hose route
• Approved for marine applications
• OE-style replacement hose for select heater-to-pipe applications

Product Details

Gates Molded Heater Hose line products are built around formed hose geometry that follows the original routing path more closely than universal straight hose. Part number 19747 is shaped for heater-to-pipe use and is listed for 1998-2003 Chevrolet S10, 1998-2003 GMC Sonoma, and 1998-2000 Isuzu Hombre applications. This hose cross-references Dayco 88405 for the same application. If you are replacing a worn heater hose on a Chevrolet S10 or GMC Sonoma, Gates 19747 provides the molded fit needed for the factory-style coolant path.

Common Problems This Hose Can Address

• Cracked or split heater hose sections
• Coolant leaks at the heater-to-pipe connection
• Collapsed or softened hose from heat and age
• Poor hose routing in tight engine compartments
• Replacement needs after heater hose service on S10, Sonoma, or Hombre models

Installation Notes

Fits 1998-2003 Chevrolet S10, Heater To Pipe-2. Fits 1998-2003 GMC Sonoma, Heater To Pipe-2. Fits 1998-2000 Isuzu Hombre, Heater To Pipe-2. Existing flow restrictor must be reused during installation. Verify hose routing, end diameters, and connection points before installation to confirm the molded shape matches the original path. Part number 19747 should be matched to the vehicle’s heater-to-pipe configuration before service begins.

Quality Assurance

Gates manufactures this molded coolant hose as an OE-style replacement for HVAC heater hose service. The EPDM material and factory-molded construction are selected to match the demands of coolant, water, and air routing in compact engine compartments.