Gates 19733 HVAC Heater Hose - Heater To Pipe-2, Heater To Tee or Pipe-4 To Heater

Gates Molded Heater Hose for Cadillac HVAC Service

The Gates Molded Heater Hose, part number 19733, is a factory-molded coolant hose built for tight engine compartments and OE-style routing. It is made from EPDM and is approved for coolant, water, air, and marine applications.

Compatible with select Cadillac Eldorado, DeVille, and Seville applications, this molded heater hose supports direct-fit replacement needs where the original hose follows a formed path between the heater and pipe connections.

Key Features

• Factory-molded design for OEM-style hose routing
• EPDM construction for coolant system service
• End 1 inside diameter: 0.72 in. (18 mm)
• End 2 inside diameter: 0.72 in. (18 mm)
• Centerline length: 15.1 in. (384 mm)
• Approved for coolant, water, air, and marine applications
• Gates Molded Heater Hose line for tighter engine compartment layouts

Detailed Description

Gates 19733 is a molded HVAC heater hose engineered to match the formed shape used in compact engine bays. The EPDM material is suited for coolant transfer service, while the molded profile helps maintain the original hose path in applications where straight hose stock will not route correctly. This part cross-references Dayco 86110 for the same application.

Fitment includes 2000-2002 Cadillac Eldorado, Pipe-4 To Heater; 1994-1997 Cadillac DeVille, Heater To Pipe-2; 1994-1997 Cadillac Eldorado, Heater To Pipe-2; 1994-1997 Cadillac Seville, Heater To Pipe-2; and 1993 Cadillac Eldorado and 1993 Cadillac Seville, Heater To Tee. Use Gates 19733 when replacing a molded heater hose on these Cadillac HVAC and coolant routing points.

What It Is Used For

• Replacing a leaking or cracked molded heater hose
• Restoring coolant flow between heater and pipe connections
• Correcting hose routing in tight engine compartments
• Addressing soft, swollen, or heat-aged EPDM hose sections
• Servicing Cadillac heater hose paths that require a formed hose shape

Installation Notes and Tips

Verify the hose path, end diameters, and centerline length before installation. Match the molded shape to the original routing on the vehicle and inspect adjoining heater pipes, tees, and clamps for wear or corrosion. Confirm the application against the vehicle’s heater-to-pipe or heater-to-tee layout before final assembly.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement part for service use in coolant, water, air, and marine applications. The molded construction and EPDM material support consistent fitment in the listed Cadillac applications.