Gates 20412 Radiator Coolant Hose - Lower or Lower - Pipe To Engine

Gates 20412 Molded Coolant Hose Overview

The Gates 20412 molded coolant hose is a radiator coolant hose built to OEM-quality specifications for lower cooling-system routing. Made from EPDM, it uses a molded shape to match the application and help simplify replacement on select Ford, Mercury, and Oldsmobile vehicles.

Compatible With 1961-1966 Ford Thunderbird, lower; 1961-1963 Mercury Colony Park, lower; 1965-1966 Mercury Colony Park, lower; 1963 Mercury Marauder, lower; 1965-1966 Mercury Marauder, lower; and 1965 Oldsmobile Cutlass, lower.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 20412
• EPDM construction for coolant-system service
• Molded hose profile for lower radiator hose routing
• End inside diameters: 1.75 in. (44 mm) and 2 in. (51 mm)
• Centerline length: 15.5 in. (394 mm)
• No spring and no quick-connect fittings

Product Details

Gates Molded Coolant Hose line is built for upper, lower, bypass, heater, and other coolant applications using OEM-style dimensions and formed bends. The 20412 hose is a molded lower radiator hose that follows the original routing on the listed vehicles, helping reduce the need to source a dealer-only replacement. This part cross-references Dayco 70448 for the same application.

Common Cooling System Issues It Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or ends
• Incorrect hose shape after a previous repair
• Restricted coolant flow caused by hose deterioration
• Fitment problems when replacing the original molded hose

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length against the removed part before installation. Inspect the radiator neck, water pump outlet, and clamps for wear or corrosion, and replace any damaged sealing surfaces before filling the cooling system. Confirm the hose is seated fully and routed without kinks or twist.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for direct replacement use in cooling-system service. The molded construction and application-specific dimensions support accurate fitment on the listed Ford Thunderbird, Mercury Colony Park, Mercury Marauder, and Oldsmobile Cutlass applications.