Dayco 72589 Radiator Coolant Hose - Upper

Dayco 72589 Curved Radiator Hose Overview

The Dayco 72589 curved radiator hose is a replacement upper coolant hose built for specific Kia cooling system applications. Made from EPDM rubber with a black finish, it follows the routing needed for a clean, secure fit in the engine bay.

Use this Dayco curved radiator hose when replacing a worn or damaged upper radiator hose on select Kia Rondo, Magentis, and Optima models. The 72589 part number is a direct reference for buyers searching for an upper radiator coolant hose by vehicle fitment.

Key Features

• EPDM construction for coolant hose service
• Black finish for OE-style appearance
• 1 3/8 in. inside diameter at both ends
• Single I.D. hose design
• Curved radiator hose profile for upper hose routing
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco 72589 replacement hose for targeted Kia applications

Product Details

Dayco Curved Radiator Hose 72589 is a formed upper coolant hose made for vehicles that require a 1 3/8-inch hose connection at both ends. The EPDM rubber construction is suited for radiator coolant service, while the curved shape helps match the factory hose path. This part is listed for 2007-2012 Kia Rondo, 2007-2008 Kia Magentis, and 2006-2008 Kia Optima in the upper radiator hose position. This part cross-references ACDelco 26590X and Gates 23315 for the same application.

Vehicle Fitment

• Fits 2007-2012 Kia Rondo, Upper
• Fits 2007-2008 Kia Magentis, Upper
• Fits 2006-2008 Kia Optima, Upper

Common Cooling System Issues

• Cracked or split upper radiator hose
• Coolant leaks at the hose body or connection points
• Softening, swelling, or hose collapse from age and heat
• Restricted coolant flow caused by hose deterioration
• Overheating concerns related to a failing radiator hose

Installation Notes

Confirm the hose routing, end diameters, and upper-position fitment before installation. Inspect the radiator neck and engine-side connection points for wear, corrosion, or residue before installing the new hose. Replace clamps if needed and verify the cooling system is properly filled and bled after service.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose applications. The 72589 is built as a formed replacement hose for the listed Kia fitments.