Dayco 72281 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose 72281

Dayco 72281 is a curved lower radiator coolant hose built for Chrysler and Dodge applications that require a dual I.D. hose profile. Made from EPDM rubber in black, it uses different inside diameters at each end to match the cooling system connection points on select Chrysler 300, Dodge Challenger, Dodge Charger, and Dodge Magnum models.

Key Features

• EPDM construction for coolant-system service
• Dual I.D. hose design with 1 7/16 in. and 1 21/32 in. inside diameters
• Curved radiator hose shape for lower hose routing
• Black finish
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco part number 72281

Product Details

This Dayco curved radiator hose is engineered as a lower coolant hose for vehicles that need a formed hose with unequal end diameters. The EPDM rubber construction is suited for cooling-system temperatures and coolant exposure, while the curved profile helps match the factory hose routing on the Chrysler 300, Dodge Challenger, Dodge Charger, and Dodge Magnum. If you are replacing a worn lower radiator hose on a 2019-2023 Chrysler 300, 2009-2023 Dodge Challenger, or 2013-2021 Dodge Charger, Dayco 72281 provides the correct fitment pattern for those listed applications. This part cross-references Gates 22941 and NAPA 9576 for the same application.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the original hose
• Improper fit from a hose with the wrong end diameters
• Cooling-system service on vehicles with a curved lower hose route
• Replacement of a hose that no longer seals properly at the radiator or engine connection

Installation Notes and Tips

Verify the hose routing and end diameters before installation, especially on vehicles noted without an oil cooler. Confirm the lower hose position and compare the original hose shape to Dayco 72281 before removal. Inspect clamps, radiator necks, and adjoining coolant pipes for wear or corrosion so the new hose seals correctly.

Quality Assurance

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