Gates 21159 Radiator Coolant Hose - Upper

Upper Molded Coolant Hose for Ford and Lincoln

Gates 21159 is a molded radiator coolant hose built for upper coolant routing on select Ford, Lincoln, and Mercury applications. It follows OEM-quality specifications and uses EPDM and plastic construction to match the shape and routing needed for a direct radiator hose replacement.

The Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant applications. For buyers searching for a molded upper coolant hose for a 1979-1993 Ford Mustang, 1985-1992 Lincoln Mark VII, or 1986-1988 Ford Thunderbird, this part number provides a fitment-focused replacement option.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 21159
• Part type: radiator coolant hose
• Molded hose design for upper coolant routing
• Material: EPDM and plastic
• End 1 inside diameter: 1.25 in. (32 mm)
• End 2 inside diameter: 1.5 in. (38 mm)
• Centerline length: 26 in. (660 mm)
• No spring and no quick-connect fittings

Detailed Description

Gates 21159 is a molded upper radiator coolant hose engineered to follow the factory-style path used in select Ford Mustang, Lincoln Mark VII, Ford Thunderbird, Mercury Cougar, Lincoln Continental, Mercury Capri, and Ford LTD applications. The molded shape helps match the original hose routing, while the EPDM and plastic construction supports coolant transfer in engine cooling systems. This part cross-references Continental 61037 and Dayco 70965 for the same application.

Fits 1979-1993 Ford Mustang, Upper. Fits 1985-1992 Lincoln Mark VII, Upper. Fits 1986-1988 Ford Thunderbird, Upper. Fits 1986-1988 Mercury Cougar, Upper. Fits 1985-1987 Lincoln Continental, Upper. Fits 1979-1986 Mercury Capri, Upper. Fits 1984-1985 Ford LTD, Upper.

Common Uses

• Replacing a cracked or softened upper radiator hose
• Restoring coolant flow after hose swelling or collapse
• Correcting leaks at the radiator hose connection points
• Replacing a hose with incorrect molded routing
• Addressing overheating caused by a damaged coolant hose

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length before installation. Confirm the upper hose application on the vehicle and inspect adjoining clamps, radiator necks, and thermostat housing connections for wear or corrosion before installing Gates 21159. Match the molded shape to the original routing to avoid kinks or tension in the cooling system.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for radiator hose replacement applications. The Gates molded coolant hose line is built to cover a wide range of cooling-system service needs, including upper hose replacements on the listed Ford, Lincoln, and Mercury vehicles.