Gates 21628 Radiator Coolant Hose - Upper

Gates 21628 Molded Coolant Hose Overview

The Gates 21628 molded coolant hose is an OE-style radiator coolant hose built for upper cooling-system routing. Made from EPDM, it uses molded construction and 1.25-inch inside diameters at both ends to match the original hose shape and connection size for service on select Chevrolet Corsica and Pontiac Tempest applications.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications with OEM-quality specifications. That makes the Gates 21628 a practical replacement when you need a formed hose that follows the factory routing without adapting a universal hose.

Key Features

• Part number: 21628
• Brand: Gates Molded Coolant Hose
• Part type: radiator coolant hose
• EPDM construction for cooling-system service
• Molded hose design for factory-style routing
• 1.25 in. inside diameter at both ends
• 15.4 in. centerline length
• No spring and no quick-connect fittings
• Upper hose position

Detailed Description

This Gates 21628 radiator coolant hose is built for direct replacement use in cooling systems that require a molded upper hose with matching end diameters and formed length. It fits 1987-1991 Chevrolet Corsica, upper, and 1987-1991 Pontiac Tempest, upper. If you are searching for a 1987-1991 Chevrolet Corsica upper radiator hose or a 1987-1991 Pontiac Tempest upper coolant hose, this part number is the correct OE-style reference to compare against the original hose.

Cross-reference part numbers include Dayco 71708 and Anchor 2162 for the same application.

Common Problems This Hose Can Address

• Cracked or split upper radiator hose
• Coolant leaks at the hose body or ends
• Collapsed hose sections from age and heat cycling
• Incorrect routing from a non-molded replacement hose
• Loss of cooling-system integrity on the upper hose path

Installation Notes and Tips

Verify the original hose shape, end diameters, and centerline length before installation. Inspect the radiator neck, engine outlet, and clamps for corrosion or wear, and replace any damaged sealing surfaces before fitting the new hose. Confirm the hose is routed in the upper position and seated fully on both 1.25-inch connections.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The molded design and EPDM material support accurate fitment for cooling-system replacement work on Chevrolet Corsica and Pontiac Tempest models.