Gates 21309 Radiator Coolant Hose

Gates 21309 Molded Coolant Hose Overview

Gates 21309 is a molded radiator coolant hose built to OEM-quality specifications for select Ford, Mercury, and Lincoln applications. It is formed from EPDM for coolant-system durability and uses a molded shape to match the routing required on covered vehicles.

The Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications, helping simplify radiator hose replacement on vehicles such as the Ford Mustang, Ford Thunderbird, and Mercury Cougar.

Key Features

• EPDM construction for coolant-system service
• Molded hose profile for application-specific routing
• 16 mm (0.62 in.) inside diameter at both ends
• 193 mm (7.6 in.) centerline length
• No spring, no modular sections, and no quick-connect fittings
• Direct replacement style for select Ford, Mercury, and Lincoln cooling systems

Detailed Product Description

This Gates 21309 radiator coolant hose is engineered as a molded replacement hose for vehicles that require a formed coolant path rather than a straight universal hose. The EPDM material is commonly used in cooling-system service because it is suited to hot coolant exposure and everyday engine-bay conditions. With matching 16 mm end diameters and a 193 mm centerline length, this hose is specified for the routing and connection points used in the listed applications.

Gates Molded Coolant Hose products are built to cover a wide range of radiator and heater hose needs, and this part number is listed for 1982-1987 Ford Thunderbird, 1983-1986 Ford Mustang, 1982-1983 Ford F-100, 1982 Lincoln Continental, and related Mercury applications including Cougar, Capri, and Marquis. If you are replacing a worn Ford Mustang coolant hose or sourcing a molded radiator hose for a Mercury Cougar, Gates 21309 provides the correct formed profile for the application.

This part cross-references Dayco 71147 and Continental 63024 for the same application.

What It Helps Address

• Coolant leaks caused by cracked or aged hose rubber
• Improper hose routing from a collapsed or misshaped hose
• Cooling-system service on vehicles requiring a molded radiator hose
• Replacement needs for select Ford Mustang, Thunderbird, and Mercury Cougar applications
• Fitment issues when a straight hose does not match the original formed path

Installation Notes and Tips

Verify hose routing, end diameter, and centerline length against the original part before installation. Inspect adjoining necks, clamps, and nearby cooling-system components for wear or corrosion, and replace any damaged mating surfaces before filling the system. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The molded construction and EPDM material support accurate fitment and cooling-system service on covered Ford, Mercury, and Lincoln vehicles.