Gates 19704 HVAC Heater Hose - Heater To Engine

Gates Molded Heater Hose 19704 Overview

Gates 19704 is a molded HVAC heater hose built for tight engine bays where a factory-shaped coolant line is needed. This Small I.D. Molded Coolant Hose uses EPDM construction and a 19 mm (0.74 in) inside diameter at both ends for a direct-style replacement in coolant, water, and air service.

Compatible With 1995-1999 Chevrolet Cavalier, 1998-1999 Pontiac Sunfire, 1999 Chevrolet Metro, 1999 Pontiac Firefly, and 1999 Suzuki Swift heater-to-engine routing, Gates 19704 supports OE-style hose routing in compact applications. It is also approved for marine applications.

Key Features

• Factory-molded shape for smaller, tighter-fitting engine compartments
• EPDM hose material for coolant, water, and air applications
• 19 mm (0.74 in) inside diameter at both ends
• 17.8 in (452 mm) centerline length
• Heater-to-engine HVAC hose routing
• Approved for marine applications

Product Details

The Gates Molded Heater Hose line focuses on OE-style routing and fitment where straight hose sections are not practical. Part number 19704 follows the molded path needed to connect the heater circuit to the engine while maintaining the correct bend profile for restricted spaces. This makes it a practical replacement for vehicles such as the Chevrolet Cavalier and Pontiac Sunfire when the original hose shape is required.

This part cross-references Davico Mfg 19704 for the same application.

What It Helps Address

• Cracked or heat-aged heater hose sections
• Incorrect hose routing in compact engine compartments
• Coolant leaks at a molded heater hose connection
• Fitment issues when a straight hose will not follow the original path
• Service replacement needs for heater-to-engine coolant lines

Installation Notes

Verify end diameters and centerline length before installation. Some listed applications require reusing the existing flow restrictor, and certain vehicles note cut-to-fit installation. Confirm the original hose routing on the Chevrolet Cavalier, Pontiac Sunfire, Metro, Firefly, or Swift before final assembly.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement built to match the shape and service requirements of the original coolant line. The EPDM construction and molded design support consistent fitment in the specified applications.