Dayco 71097 Radiator Coolant Hose - Upper

Dayco Curved Radiator Hose 71097

Dayco 71097 is a curved radiator coolant hose built for upper cooling-system routing on select import and domestic vehicles. Made from EPDM rubber with a black finish, it uses a single I.D. hose design and 1 3/8-inch inside diameter ends for a direct replacement-style fit.

This Dayco Curved Radiator Hose line is focused on OE-style cooling system service, giving technicians a formed hose shape that follows the original routing path. For buyers searching for a Dayco 71097 radiator hose for Mercedes-Benz 300D or Chevrolet S10 upper hose replacement, this part matches the listed applications below.

Key Features

• EPDM construction for cooling-system hose service
• Black finish for a clean OE-style appearance
• Single I.D. hose design
• 1 3/8-inch inside diameter at both ends
• Upper radiator hose position
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Cross-references Dayco 71097 with ACDelco 24190L and Gates 21580 for the same application

Detailed Description

Dayco 71097 is a curved radiator coolant hose for upper hose routing on select vehicles, including 1980-1985 Mercedes-Benz 300D, 1981-1985 Mercedes-Benz 300SD, 1980-1985 Mercedes-Benz 300TD, 1987-1988 Chevrolet S10, 1987-1988 Chevrolet S10 Blazer, 1987-1988 GMC S15, 1987-1988 GMC S15 Jimmy, and 1989 Volkswagen Golf. The formed shape helps match the original cooling-system path, while the EPDM material is specified for radiator hose service and the SAE ratings identify the hose standard used for this application.

What It Helps Address

• Cracked or hardened upper radiator hose material
• Coolant leaks at the hose body or ends
• Collapsed or misshaped hose routing
• Cooling-system service on vehicles with a curved upper hose layout
• Replacement needs for a worn Dayco 71097-equivalent hose

Installation Notes and Tips

Verify the hose routing, end diameters, and upper-position fitment before installation. Inspect the radiator neck and engine-side connection points for corrosion, residue, or sharp edges that can affect sealing. Confirm that the hose follows the original curved path without twisting, and use the vehicle’s specified clamps and coolant service procedure.

Quality Assurance

Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent radiator hose construction for the listed applications. Confirm fitment against the vehicle’s year, make, model, and upper hose routing before ordering.