Dayco 72442 Radiator Coolant Hose - Upper

Curved Upper Radiator Hose for Hyundai

Dayco 72442 is a curved radiator coolant hose built for upper cooling-system routing on select Hyundai applications. Made from EPDM and finished in black, it follows the OE-style shape needed for a clean, secure fit in the engine bay.

Compatible with 2006-2010 Hyundai Azera, upper, and 2006-2010 Hyundai Sonata, upper, this Dayco Curved Radiator Hose supports direct replacement needs for vehicles with the specified cooling layout. The hose type is a single I.D. hose with 1 3/8-inch inside diameter ends and SAE J20R4 Class D-1 / SAE J1684 Type EC compliance.

Key Features

• Dayco 72442 curved radiator coolant hose for upper hose routing
• EPDM construction for cooling-system service
• Black finish for OE-style appearance
• 1 3/8-inch inside diameter at both ends
• Single I.D. hose design
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Cross-references ACDelco 22625M and Gates 23148 for the same application

Product Details

This radiator hose is shaped for the upper cooling circuit on Hyundai Azera and Hyundai Sonata models listed in the fitment data. The curved profile helps match the factory hose path, while the EPDM rubber construction is suited for coolant transfer in standard engine-bay temperatures. Dayco 72442 is a practical replacement choice when the original upper radiator hose shows age, cracking, or leakage.

Common Replacement Reasons

• Cracked or hardened upper radiator hose
• Coolant seepage at the hose ends
• Soft spots, swelling, or hose collapse
• Loss of proper coolant flow through the upper hose route
• Fitment issues after replacing a worn OE hose

Installation Notes

Verify the hose routing, end diameters, and upper-position fitment before installation. Inspect hose clamps, necks, and adjoining coolant components for wear or corrosion, and replace any damaged sealing surfaces before filling the cooling system. Confirm the hose follows the original curved path without twisting or kinking.

Quality Assurance

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