Dayco 70461 Radiator Coolant Hose - Lower or Upper

Dayco 70461 Curved Radiator Hose Overview

The Dayco 70461 curved radiator hose is a radiator coolant hose built for upper and lower cooling-system applications listed in the fitment data. Made from EPDM rubber with a black finish, it uses a single I.D. hose design with 1 1/2-inch inside diameters at both ends for a direct replacement-style fit.

Compatible With select Ford Mustang, Thunderbird, Mercury Cougar, Mercury Montego, Dodge B200, Dodge B300, and Buick LeSabre applications, this Dayco 70461 hose is specified for vehicles with and without air conditioning depending on the listing. It is a practical choice when replacing a worn curved radiator hose on classic cooling systems.

Key Features

• Dayco Curved Radiator Hose, part number 70461
• EPDM construction for cooling-system service
• Black hose with a single I.D. hose design
• 1 1/2-inch inside diameter at both ends
• SAE J20R4 Class D-1 and SAE J1684 Type EC specification
• Fits upper and lower radiator hose applications listed below
• Compatible With select Ford, Mercury, Dodge, and Buick vehicles

Product Details

The Dayco Curved Radiator Hose 70461 is built for coolant transfer in curved routing applications where a formed hose is required. Its EPDM material is commonly used in radiator hose construction for exposure to heat and coolant, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications identify the hose as a cooling-system replacement part for the listed vehicles. This part cross-references Gates 20540 for the same application.

Vehicle coverage includes Fits 1971 Ford Mustang, Upper; Fits 1970-1971 Ford Thunderbird, Upper; Fits 1971 Mercury Cougar, Upper; Fits 1970-1971 Mercury Montego, Upper; Fits 1976 Dodge B200, Upper; Fits 1977 Dodge B200, Upper; Fits 1978 Dodge B200, Upper; Fits 1976 Dodge B300, Upper; Fits 1977 Dodge B300, Upper; Fits 1978 Dodge B300, Upper; and Fits 1965 Buick LeSabre, Lower. The Dayco 70461 is listed for upper hose use on most applications and lower hose use on the 1965 Buick LeSabre.

Common Replacement Uses

• Replacing a cracked or softened radiator coolant hose
• Restoring coolant flow in a curved upper hose routing
• Addressing leaks at hose ends or along the hose body
• Replacing a hose that no longer holds shape under heat
• Servicing classic vehicle cooling systems with the correct formed hose profile

Installation Notes

Verify the hose routing, position, and end diameters before installation. Confirm whether your application uses the upper or lower radiator location, and match the vehicle listing exactly, including air-conditioning and heavy-duty cooling notes where shown. Inspect hose clamps, necks, and mating surfaces for wear before installing the new hose.

Quality Assurance

Dayco manufactures this radiator hose to meet the listed SAE specifications and application requirements for the referenced vehicles. The 70461 part number is supported by multiple interchange references, including Gates 20540, for direct application matching.