Dayco 71261 Radiator Coolant Hose - Lower, Lower - Radiator To Thermostat or Upper

Dayco Curved Radiator Hose 71261

Dayco 71261 is a curved radiator coolant hose built for specific Toyota, Nissan, and Chevrolet applications that require a 1 1/8-inch inside diameter at both ends. Made from EPDM and finished in black, this single I.D. hose is shaped for lower and upper cooling-system routing where a formed hose is needed for proper fitment.

The Dayco Curved Radiator Hose line focuses on application-specific cooling hose geometry and SAE-rated construction. For buyers searching for a radiator hose for 1984-1988 Toyota Corolla lower radiator to thermostat routing, or an upper hose for 1987-1988 Nissan Sentra and Pulsar NX, this part number provides a direct replacement option.

Key Features

• EPDM construction for coolant-system service
• Black finish for OE-style appearance
• 1 1/8-inch inside diameter at both ends
• Single I.D. hose design
• Curved hose profile for formed routing
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Fits lower, lower radiator-to-thermostat, and upper hose positions depending on application

Detailed Description

Dayco 71261 is a formed radiator coolant hose intended for vehicles that need a curved hose with matching 1 1/8-inch end diameters. The EPDM rubber construction is suited to coolant exposure and underhood temperature cycling, while the curved shape helps match factory routing on the radiator and thermostat connections. This part number is listed for 1984-1988 Toyota Corolla lower radiator to thermostat applications, 1989-1990 Toyota Tercel lower applications, 1985-1988 Chevrolet Nova lower radiator to thermostat applications, and 1987-1988 Nissan Sentra and Pulsar NX upper applications. This part cross-references ACDelco 22206M and Gates 21586 for the same application.

For shoppers comparing radiator hose replacement options, Dayco 71261 is a direct-fit style solution for select Corolla, Tercel, Nova, Sentra, and Pulsar NX cooling-system service. The part number 71261 is also referenced under several aftermarket and OE numbers, making it easier to match against existing catalog listings.

Common Problems This Hose Can Address

• Cracked or hardened radiator hose material
• Coolant leaks at a worn hose connection
• Incorrect hose shape that does not follow factory routing
• Softening or swelling from age and heat exposure
• Cooling-system service on a vehicle with a damaged upper or lower hose

Installation Notes and Tips

Verify the hose position, end diameters, and routing before installation. Compare the old hose shape to the curved profile of Dayco 71261 and confirm the application matches the vehicle year, make, model, and position listed. Inspect hose clamps, thermostat housing, radiator necks, and nearby fittings for wear or corrosion before installing the new hose.

Quality Assurance

Dayco manufactures cooling-system hoses to published SAE specifications, including SAE J20R4 Class D-1 and SAE J1684 Type EC, to support consistent material and dimensional standards for radiator hose service.