Gates 21424 Radiator Coolant Hose - Lower

Gates 21424 Molded Coolant Hose Overview

Gates 21424 is a molded radiator coolant hose built to OE-quality specifications for lower cooling-system routing. Made from EPDM, it provides the formed shape needed for a precise replacement on select Honda Civic, Honda CRX, and Honda Accord applications.

The Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant paths with application-specific shapes. For Honda Civic and Accord cooling system repair, this molded hose helps restore the original hose routing without the need to source a dealer-only radiator hose replacement.

Key Features

• EPDM construction for coolant-system service
• Molded design for a formed lower hose profile
• 1.06 in. (27 mm) inside diameter at both ends
• 24.6 in. (625 mm) centerline length
• No spring and no quick-connect fittings
• Direct replacement style for lower radiator hose applications

Detailed Product Description

This Gates 21424 molded coolant hose is engineered for lower radiator hose service on select 1984-1991 Honda Civic, 1988-1991 Honda CRX, and 1986-1989 Honda Accord models. The molded shape supports the factory hose path, while the EPDM material is suited for cooling-system temperatures and coolant exposure. If you are replacing a worn Honda Civic lower radiator hose or servicing a Honda Accord lower coolant line, this part number 21424 provides the correct formed configuration for the application.

This part cross-references Dayco 71227 and Continental 61472 for the same application.

Vehicle Fitment

• Fits 1984 Honda Civic, Lower
• Fits 1985-1987 Honda Civic, Lower
• Fits 1986-1987 Honda Accord, Lower
• Fits 1988-1989 Honda Accord, Lower
• Fits 1988-1991 Honda Civic, Lower
• Fits 1988-1991 Honda CRX, Lower

Common Replacement Uses

• Cracked or softened lower radiator hose
• Coolant seepage at the hose body or ends
• Collapsed hose routing under engine heat
• Incorrect fit from a universal hose replacement
• Cooling-system service on Honda Civic, Honda CRX, or Honda Accord

Installation Notes and Tips

Confirm the hose routing against the original lower hose before installation. Inspect the mating necks, clamps, and nearby cooling components for wear or corrosion, and replace any damaged clamp surfaces before refitting the hose. Verify that the hose seats fully on both ends and follows the factory path without twisting.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications and offers one of the broadest replacement hose lines in the aftermarket. Part number 21424 is built for application-specific fitment on the listed Honda models.