Gates 21087 Radiator Coolant Hose - Lower or Upper

Gates 21087 Molded Coolant Hose

Gates 21087 is a molded radiator coolant hose built to OEM-style dimensions for upper and lower cooling-system applications. It uses EPDM construction and formed bends to match the routing needed on select Jeep, Ford, Mercury, Lincoln, and Isuzu vehicles.

The Gates Molded Coolant Hose line covers radiator, bypass, heater, and other coolant routing needs with application-specific shapes. For buyers searching for a molded coolant hose for Jeep Cherokee upper hose replacement or a radiator coolant hose for older Ford and Mercury models, this part number provides a direct-fit service option.

Key Features

• EPDM rubber construction for coolant-system service
• Molded shape for accurate hose routing
• End inside diameters: 1.25 in. (32 mm) and 1.5 in. (38 mm)
• Centerline length: 19.3 in. (490 mm)
• No spring and no quick-connect fittings
• Fits upper and lower coolant applications depending on vehicle listing
• Gates part number 21087

Application Details

Gates 21087 is a radiator coolant hose replacement for select 1978-1996 vehicles, including Fits 1984-1996 Jeep Cherokee, Upper; Fits 1986-1992 Jeep Comanche, Upper; Fits 1984-1987 Jeep Wagoneer, Upper; Fits 1982-1985 Ford Thunderbird, Upper; Fits 1982-1985 Mercury Cougar, Upper; Fits 1982-1984 Lincoln Continental, Upper; and Fits 1991-1994 Isuzu Pickup, Lower. It also covers additional Ford, Mercury, Lincoln, and Isuzu applications listed for upper or lower coolant routing. This part cross-references Dayco 70932 for the same application.

Common Problems This Hose Can Address

• Cracked or hardened coolant hose material
• Coolant leaks at a formed hose section
• Incorrect hose routing after a previous replacement
• Heat-related swelling or collapse in an aging hose
• Fitment issues when a straight hose does not match the factory bend

Installation Notes

Verify the vehicle year, make, model, and hose position before installation. Compare the molded shape, end diameters, and centerline length to the original hose, especially on Jeep Cherokee and Ford Thunderbird applications where upper hose routing varies by configuration. Drain coolant as needed, inspect clamps and adjoining necks, and confirm the hose seats fully before refilling and bleeding the system.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in cooling and heater circuits. The EPDM material and formed construction are selected to match factory-style fitment requirements across the listed applications.