Dayco 72256 Radiator Coolant Hose - Upper

Dayco Curved Radiator Hose 72256

Dayco 72256 is a curved radiator coolant hose built for upper cooling-system routing on select Ford Super Duty trucks and the Ford Excursion. Made from EPDM rubber and finished in black, it is shaped to match the application and maintain a secure coolant path under engine heat and pressure.

Key Features

• EPDM construction for coolant-system durability
• Curved radiator hose design for upper hose routing
• 1 3/4 in. inside diameter at both ends
• Black finish for a clean OE-style appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco 72256 for direct replacement use in supported applications

Product Details

This Dayco Curved Radiator Hose is engineered as a single I.D. hose with matching 1 3/4 in. end diameters, making it suitable for upper radiator connections where a formed hose shape is required. The EPDM rubber construction is selected for cooling-system service, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications provide a clear technical reference for replacement selection. Dayco 72256 is a practical choice when replacing a worn or deteriorated upper coolant hose on Ford F-250 Super Duty, Ford F-350 Super Duty, or Ford Excursion applications.

The Dayco Curved Radiator Hose line focuses on application-specific hose geometry and material selection for cooling-system service. For buyers searching for a Ford F-250 Super Duty upper radiator hose, Ford F-350 Super Duty curved coolant hose, or Ford Excursion upper radiator hose replacement, this part number provides a direct-fit reference for the listed vehicles.

This part cross-references Motorcraft KM4783 and Gates 22779 for the same application.

What It Helps Address

• Cracked or hardened upper radiator hose material
• Coolant seepage at the hose connection points
• Loss of hose flexibility from age and heat cycling
• Incorrect hose shape for the upper radiator routing
• Cooling-system service needs on Ford Super Duty and Excursion models

Installation Notes and Tips

Verify end diameter, hose routing, and position before installation. This hose is listed for upper radiator use on 2003-2007 Ford F-250 Super Duty, 2003-2007 Ford F-350 Super Duty, and 2003-2005 Ford Excursion. Inspect clamps, necks, and adjacent cooling components for wear or corrosion before installing the new hose. Confirm the hose follows the original curved routing without twist or kinking.

Quality Assurance

Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC standards, supporting consistent material and dimensional requirements for radiator hose service.