Gates 20557 Radiator Coolant Hose

Gates 20557 Molded Coolant Hose Overview

Gates 20557 is a molded radiator coolant hose built for upper, lower, bypass, heater, and other coolant routing applications where an OEM-style shape matters. Made from EPDM with an internal spring, it is formed to match the cooling system path on select Ford, Lincoln, and Mercury vehicles, including classic truck and passenger car applications.

The Gates Molded Coolant Hose line is built around application-specific fitment and broad replacement coverage, helping reduce the time spent sourcing a direct replacement for radiator hose service. This part number, 20557, is listed for lower hose positions and lower engine-to-pipe routing on select vehicles.

Key Features

• EPDM construction for coolant-system use
• Molded hose shape for routed fitment
• Contains an internal spring
• 2 in. end inside diameter at both ends
• 13.7 in. centerline length
• Fits lower, lower engine-to-pipe, and lower pipe-to-radiator applications
• Gates 20557 radiator coolant hose for select Ford, Lincoln, and Mercury vehicles

Product Details

Gates 20557 is a molded coolant hose engineered to follow the original hose path on specific cooling systems. The EPDM material is suited for radiator and heater coolant service, while the molded profile and spring support the hose shape in routed applications. This part number is used on 1965-1967 Ford F-100, Ford F-250, Ford F-350, 1958-1960 Lincoln Continental, and 1957 Mercury Colony Park applications listed below.

This part cross-references Dayco 70230 and 70689 for the same application. If you are replacing a worn or leaking hose on a Ford F-100, Ford F-250, or Lincoln Continental, Gates 20557 provides a direct-fit replacement path for the specified lower coolant locations.

Common Problems This Hose Can Address

• Coolant leaks from cracked or aged hose rubber
• Improper hose routing on lower radiator or engine-to-pipe runs
• Collapsed hose sections in suction-side cooling circuits
• Heat-related deterioration in older cooling systems
• Fitment issues when replacing a molded hose with a generic straight hose

Installation Notes and Tips

Verify the vehicle’s cooling hose routing, end diameters, and centerline length before installation. This hose is listed for lower positions, including lower - pipe to radiator and lower - engine to pipe applications, so match the original routing on the vehicle before removal. For 1967 Ford F-100 and Ford F-250 applications, the notes include cut-to-fit usage on specific configurations; confirm the exact vehicle setup, including dual rear wheels, X.C., 4WD, or A/C notes where applicable.

Compatible fitment includes 1965-1966 Ford F-100 lower, 1965-1966 Ford F-100 lower - engine to pipe, 1965-1966 Ford F-250 lower - engine to pipe, 1965-1966 Ford F-350 lower - engine to pipe, 1958-1960 Lincoln Continental lower, and 1957 Mercury Colony Park lower. Gates 20557 should be matched to the original hose shape and routing before coolant refill.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for replacement use across radiator, heater, bypass, and related coolant applications. The Gates Molded Coolant Hose line is built as a broad replacement offering for vehicles that require a formed hose rather than a universal straight section.