Gates 20559 Radiator Coolant Hose - Lower or Upper

Gates 20559 Molded Coolant Hose

The Gates 20559 molded coolant hose is a direct-fit radiator coolant hose for select Jeep, Chevrolet, and Pontiac applications. Built from EPDM and formed to OEM-style dimensions, it supports lower coolant routing where a shaped hose is required for proper fit and flow.

Key Features

• EPDM construction for coolant-system durability
• Molded design for accurate routing and fit
• 1.5 in. end 1 inside diameter, 1.75 in. end 2 inside diameter
• 15.7 in. centerline length for lower hose applications
• No spring and no quick-connect fittings
• Direct replacement part number 20559

Product Details

Gates Molded Coolant Hose line is built for upper, lower, bypass, heater, and other coolant-system applications using OEM-quality specifications. The Gates 20559 is a molded lower radiator coolant hose that follows the original hose shape for vehicles where straight hose stock will not provide the correct routing. It is a practical replacement for Jeep Cherokee lower radiator hose service, Jeep Wrangler lower coolant hose replacement, and Chevrolet Nova lower radiator hose applications. This part cross-references Continental 60817 for the same application.

Common Problems It Can Help Address

• Cracked or split lower radiator hose
• Coolant leaks at worn hose sections
• Poor hose routing from a previous incorrect replacement
• Restricted coolant flow caused by hose collapse or deformation
• Fitment issues on molded lower hose applications

Installation Notes and Tips

• Verify end diameters and centerline length before installation.
• Inspect hose clamps, necks, and adjoining coolant components for wear.
• Confirm clearance around the hose path on Jeep Cherokee, Jeep Comanche, Jeep Wrangler, Chevrolet Camaro, Chevrolet Nova, and Pontiac Acadian applications.
• Check vehicle equipment notes; 1970-1971 Chevrolet Camaro listings note non-AC compatibility.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in radiator and HVAC coolant routing. The molded EPDM construction and application-specific shape support consistent fitment across the listed vehicles, including 1999-2000 Jeep Cherokee, 1987-1990 Jeep Wrangler, and 1969-1975 Chevrolet Nova applications.