Gates 19697 HVAC Heater Hose - Heater To Tee-1

Gates 19697 Molded Heater Hose Overview

The Gates 19697 molded heater hose is an OEM-style coolant hose formed for tight engine compartments where a straight hose will not route correctly. Built from EPDM, it is suitable for coolant, water, and air service, and it is also approved for marine applications.

This Gates Molded Heater Hose line is made for factory-style routing and consistent fitment in compact HVAC and cooling system layouts. For buyers searching for a molded heater hose for 1990-1993 Cadillac DeVille or 1993 Cadillac 60 Special applications, part number 19697 provides the correct molded shape for the heater-to-tee connection.

Key Features

• Brand: Gates
• Part number: 19697
• Product line: Molded Heater Hose
• EPDM construction for coolant system service
• Factory-molded, OE-style shape for tighter engine bays
• End 1 inside diameter: 0.72 in. (18 mm)
• End 2 inside diameter: 0.72 in. (18 mm)
• Centerline length: 20.4 in. (518 mm)
• Molded design with no branch quantity
• Approved for coolant, water, air, and marine applications

Product Details

Gates 19697 is a molded HVAC heater hose built to follow the original routing used in select Cadillac heater circuits. Its EPDM material and molded profile help it match the space constraints found in modern and classic engine compartments alike. This part number 19697 is a direct-fit style replacement for heater-to-tee routing on 1990-1993 Cadillac DeVille, 1990-1992 Cadillac Fleetwood, 1990-1991 Cadillac Commercial Chassis, and 1993 Cadillac 60 Special applications.

This part cross-references Four Seasons 64182 for the same application.

Common Problems It Can Address

• Cracked or hardened heater hose material
• Incorrect hose routing in tight engine compartments
• Coolant seepage at a worn heater hose section
• Loss of heater circuit flow from a deteriorated hose
• Fitment issues caused by using a straight hose where a molded hose is required

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. This molded heater hose is intended for heater-to-tee routing on the listed Cadillac applications, so matching the original path is important for proper clearance and system function. Inspect adjoining clamps, tees, and pipe ends for wear or corrosion before installing the new hose.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement built to factory-molded specifications. The EPDM construction and application-specific shape support reliable service in coolant, water, air, and marine environments.