Gates 20779 Radiator Coolant Hose - Lower or Upper

Gates 20779 Molded Coolant Hose

Gates 20779 is a molded radiator coolant hose built to OEM-quality specifications for upper, lower, bypass, heater, and other coolant routing needs. Made from EPDM and formed with a molded shape, it supports direct replacement on select Nissan, Pontiac, Hyundai, and Mitsubishi applications.

The Gates Molded Coolant Hose line covers a wide range of radiator hose replacement needs, helping simplify service on vehicles that require a formed hose profile rather than a universal straight hose. This part number, 20779, is a direct-fit style replacement for specific cooling system layouts.

Key Features

• EPDM construction for coolant system use
• Molded hose design for formed routing
• 1.25 in. inside diameter at both ends
• 16.8 in. centerline length
• No spring, no branch, and no quick-connect fittings
• Direct replacement style for upper and lower coolant hose applications

Product Details

This Gates radiator coolant hose is engineered for vehicles that need a molded replacement hose with the correct bends and dimensions. The 1.25-inch end diameters and 16.8-inch centerline length make it a precise service part for cooling system repairs where hose shape matters. Gates 20779 is listed for 1987-1988 Pontiac Grand Am upper hose use, 1984-1987 Hyundai Pony lower hose use, 1983-1986 Mitsubishi Montero lower hose use, and select Nissan 200SX and 510 lower hose applications, including 1977-1979 Nissan 200SX and 1978-1979 Nissan 510.

This part cross-references Dayco 70796 and Bosch 62014 for the same application.

Common Repair Uses

• Replacing a cracked or leaking radiator coolant hose
• Restoring proper coolant flow in a formed hose route
• Fixing hose collapse, swelling, or soft spots in the cooling system
• Addressing coolant seepage at the hose connection points
• Servicing upper or lower radiator hose routing on select vehicles

Installation Notes

Verify hose routing, end diameters, and centerline length before installation. This molded hose is listed for upper and lower positions depending on vehicle application, so match the position to the vehicle-specific fitment data. Inspect hose clamps, necks, and adjacent cooling system components during replacement to help ensure a proper seal.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in the cooling system. The molded EPDM construction and application-specific shape support accurate fitment on the listed vehicles, including Pontiac Grand Am, Hyundai Pony, Mitsubishi Montero, and Nissan 200SX and 510 applications.