Gates 19021 HVAC Heater Hose - Valve To Engine or Valve To Pipe-2

Gates Molded Heater Hose for Tight Engine Bays

The Gates 19021 molded heater hose is an OEM-style coolant hose built for smaller, tighter engine compartments where a straight hose will not route correctly. It is made from EPDM and is approved for coolant, water, air, and marine applications.

Key Features

• Factory-molded shape for accurate routing in compact engine bays
• EPDM construction for heater and coolant service
• End I.D. sizes: 16 mm (.62 in) and 18 mm (.72 in)
• Centerline length: 452 mm (17.8 in)
• Direct replacement style for HVAC heater hose applications
• Part number 19021 for easy identification

Product Details

Gates Molded Heater Hose 19021 is a formed coolant hose designed to follow the original routing used on select Geo and Toyota applications. Its molded profile helps maintain proper hose alignment around nearby components, which is important in the tighter packaging found in late-model engine compartments. This hose is a practical choice for service work on a 1993-1997 Geo Prizm or a 1993-1997 Toyota Corolla, including 1996 Toyota Corolla valve to engine and 1993-1995 Toyota Corolla valve to pipe-2 applications. This part cross-references Dayco 87856 for the same application.

Common Problems It Can Help Address

• Cracked or leaking heater hose sections
• Incorrect hose routing after cooling system repair
• Restricted coolant flow caused by a deteriorated hose
• Fitment issues when a straight hose cannot match the factory bend
• Service replacement for worn hose connections on Geo Prizm and Toyota Corolla models

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. Match the molded shape to the original path and inspect adjoining clamps, pipes, and heater valve connections for wear or corrosion. Confirm fitment for the exact vehicle position listed: valve to engine or valve to pipe-2.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement built to the dimensional requirements of the listed applications. The EPDM material and factory-molded construction support consistent fit and service use in coolant, water, air, and marine environments.