Gates 20544 Radiator Coolant Hose - Lower

Gates 20544 Molded Coolant Hose Overview

The Gates 20544 molded coolant hose is a radiator coolant hose built to OEM-quality specifications for lower cooling-system routing. It is formed from EPDM for dependable coolant service and is shaped to match the application-specific bend needed on classic Chevrolet, Pontiac, and Ford vehicles.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant applications, giving you a direct replacement option for radiator hose service on vehicles such as the Chevrolet Bel Air, Impala, and El Camino.

Key Features

• Part number: 20544
• Brand line: Gates Molded Coolant Hose
• EPDM construction for coolant-system use
• Molded design for lower hose routing
• End 1 inside diameter: 1.75 in. (44 mm)
• End 2 inside diameter: 1.88 in. (48 mm)
• Centerline length: 14 in. (356 mm)
• No spring and no quick-connect fittings
• Direct replacement style for OE-level fitment

Detailed Description

Gates 20544 is a molded radiator coolant hose engineered for lower hose applications where a formed shape is required to follow the factory cooling-system path. The EPDM material is selected for coolant exposure, while the molded profile helps match the original hose geometry on vehicles that need a precise bend and stable routing. This part number 20544 is listed for lower hose service on 1965-1968 Chevrolet Bel Air, 1966-1968 Chevrolet Caprice, 1965-1968 Chevrolet Impala, 1965-1968 Pontiac Laurentian, 1965-1968 Pontiac Parisienne, 1966-1967 Chevrolet El Camino, 1965-1967 Chevrolet Malibu, and 1965-1966 Ford LTD.

This part cross-references Dayco 70470 for the same application.

Common Cooling System Issues It Can Address

• Cracked or hardened lower radiator hose
• Coolant leaks at the hose body or connection points
• Incorrect hose shape after prior replacement
• Restricted coolant flow caused by a deteriorated hose
• Fitment problems from using a universal hose in a formed application

Installation Notes and Tips

Verify end diameters and centerline length before installation to confirm the hose matches the original routing. Inspect the radiator neck, water pump outlet, and clamps for wear or corrosion before installing the new hose. Drain coolant as needed, route the hose without twisting, and confirm clearance from belts, pulleys, and hot engine components after installation.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in the listed applications. The Gates molded coolant hose line is built to cover a wide range of cooling-system hose needs, including lower radiator hose service.