Dayco 72117 Radiator Coolant Hose - Upper

Dayco Curved Radiator Hose for Volvo S80

Dayco Part Number 72117 is a curved radiator coolant hose built for the upper cooling circuit on select Volvo S80 models. Made from EPDM rubber and formed as a dual I.D. hose, it is shaped to match the routing needed in the engine bay while maintaining a secure coolant connection.

This Dayco Curved Radiator Hose line focuses on OE-style fit and cooling-system serviceability for passenger vehicles that need a formed replacement hose with the correct bend and diameter transition.

• EPDM construction for coolant-system durability
• Black finish for a factory-style appearance
• Dual I.D. hose design with 1 9/32 in. end 1 inside diameter and 1 7/16 in. end 2 inside diameter
• Curved radiator hose shape for upper hose routing
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with 1999-2005 Volvo S80, upper
• Dayco 72117 for direct replacement selection

Detailed Product Overview

Dayco 72117 is a radiator coolant hose designed for the upper position on 1999-2005 Volvo S80 applications. The EPDM rubber construction is suited for hot coolant exposure, while the curved profile helps the hose follow the original routing path without unnecessary stress at the connection points. The dual I.D. design supports the specified end sizes, making it a practical replacement for vehicles that require a formed upper radiator hose. This part cross-references Gates 22676 for the same application.

Common Cooling System Issues

• Cracked or hardened upper radiator hose material
• Coolant seepage at hose connections
• Improper hose routing after service or replacement
• Softening, swelling, or collapse from age and heat
• Loss of cooling-system sealing at the upper hose location

Installation Notes and Tips

Verify hose routing, end diameters, and position before installation. Inspect the radiator neck, engine outlet, and clamps for wear or corrosion, and replace damaged sealing surfaces as needed. Confirm that the hose follows the original curved path on the Volvo S80 upper cooling connection to avoid kinks or tension during engine movement.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and dimensional requirements for cooling-system service. Part Number 72117 is intended for 1999-2005 Volvo S80 upper radiator hose applications.