Dayco 71080 Radiator Coolant Hose - Upper

Dayco 71080 Curved Radiator Hose Overview

Dayco 71080 is a curved radiator coolant hose built for upper cooling-system routing on select Chevrolet and Pontiac vehicles. Made from EPDM rubber with a black finish, it provides a direct-fit replacement for applications that require a 1 1/4 in. inside diameter at both ends.

Compatible with upper radiator hose applications on Chevrolet Caprice, Monte Carlo, El Camino, Impala, Malibu, Camaro, and Pontiac Grand Prix, Bonneville, and Parisienne models, this hose follows the original curved path needed for proper coolant flow. The Dayco Curved Radiator Hose line focuses on OE-style fitment and material selection for common cooling-system service needs.

Key Features

• EPDM construction for cooling-system use
• Black finish for a clean OE-style appearance
• 1 1/4 in. inside diameter at both ends
• Single I.D. hose design
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Upper curved radiator hose routing
• Dayco part number 71080

Product Details

Dayco 71080 is a radiator coolant hose for upper hose applications where a curved shape is required to match factory routing. The EPDM rubber construction is suited for coolant exposure and everyday engine-bay temperatures, while the single I.D. hose layout supports a straightforward replacement on vehicles that use the same 1 1/4 in. inlet and outlet sizing. This part cross-references Gates 21269 for the same application.

Fits 1981-1990 Chevrolet Caprice, Upper. Fits 1981-1988 Chevrolet Monte Carlo, Upper. Fits 1981-1987 Chevrolet El Camino, Upper. Fits 1981-1985 Chevrolet Impala, Upper. Fits 1981-1983 Chevrolet Malibu, Upper. Fits 1981 Chevrolet Camaro, Upper. Fits 1986-1987 Pontiac Grand Prix, Upper. Fits 1986 Pontiac Bonneville, Upper. Fits 1985-1986 Pontiac Parisienne, Upper. Fits 1983 Pontiac Parisienne, Upper.

Common Cooling Issues It Can Address

• Cracked or hardened upper radiator hose material
• Coolant leaks at the hose body or connection points
• Incorrect hose shape that does not follow factory routing
• Restricted coolant transfer caused by a deteriorated hose
• Service replacement for aging OE-style cooling hoses

Installation Notes and Tips

Verify end diameters, hose routing, and upper-hose position before installation. Inspect the radiator neck and engine-side connection for corrosion, residue, or sharp edges that can affect sealing. Replace clamps if wear or damage is present, and confirm the hose is seated fully before refilling and bleeding the cooling system.

Quality Assurance

Dayco manufactures this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system service. The curved profile and EPDM construction support OE-style replacement on the listed Chevrolet and Pontiac applications.