Dayco 72952 Radiator Coolant Hose - Upper

Curved Upper Radiator Hose for Kia and Hyundai

Dayco 72952 is a curved radiator coolant hose built for upper cooling-system routing on select Kia Optima and Hyundai Sonata applications. Made from EPDM rubber and finished in black, it is shaped to match the vehicle’s hose path and support reliable coolant transfer in the engine bay.

Key Features

• EPDM construction for coolant-hose service
• Black finish for a clean OE-style appearance
• Single I.D. hose design
• End 1 inside diameter: 1 11/32 in.
• End 2 inside diameter: 1 11/32 in.
• End 1 outside diameter: 1 23/32 in.
• End 2 outside diameter: 1 23/32 in.
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications

Product Details

This Dayco curved radiator hose is engineered as an upper radiator coolant hose for vehicles that require a formed hose profile rather than a straight universal hose. The Dayco 72952 uses EPDM material for cooling-system duty and follows SAE hose specifications for dimensional and performance consistency. It is a direct-fit style hose for the upper radiator connection on 2011-2015 Kia Optima and 2011-2014 Hyundai Sonata applications.

Dayco’s Curved Radiator Hose line focuses on shaped coolant hoses that follow the factory routing path, helping maintain proper hose alignment in tight engine compartments. For buyers searching for a 2011-2015 Kia Optima upper radiator hose or a 2011-2014 Hyundai Sonata upper coolant hose, Dayco 72952 matches the listed application and hose geometry.

What It Helps Address

• Cracked or aged upper radiator hose material
• Coolant seepage at the hose connection points
• Improper hose routing from a collapsed or misshaped hose
• Cooling-system service on a worn Kia Optima or Hyundai Sonata hose
• Replacement of a formed upper radiator coolant hose with the correct curvature

Installation Notes and Tips

Verify the hose routing, end diameters, and upper-position fitment before installation. Inspect the radiator neck and engine-side connection surfaces for corrosion, residue, or damage, and replace clamps if they are worn or no longer secure. Confirm the hose is seated fully and routed without twist or contact against hot or moving components.

Quality Assurance

Dayco 72952 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for radiator hose applications. It is a formed EPDM coolant hose intended for the listed Kia Optima and Hyundai Sonata fitments.