Gates 21756 Radiator Coolant Hose - Upper

Gates 21756 Molded Coolant Hose Overview

Gates 21756 is a molded radiator coolant hose built for upper cooling-system routing on select Mitsubishi, Buick, Oldsmobile, and Pontiac applications. It uses EPDM construction and OEM-style molded shaping to match the original hose path and connection points.

The Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant applications with OE-style specifications. For radiator hose replacement on vehicles such as the 1989-1992 Mitsubishi Galant, 1989-1991 Buick Skylark, and 1989-1991 Pontiac Grand Am, this part number provides a direct replacement option.

Key Features

• Part number: 21756
• Brand line: Gates Molded Coolant Hose
• Material: EPDM for coolant-system service
• Molded hose design for factory-style routing
• End inside diameter: 1.31 in. (33 mm) on both ends
• Centerline length: 16.4 in. (417 mm)
• Upper radiator coolant hose application
• No spring and no quick-connect fittings

Detailed Description

Gates 21756 is a molded radiator coolant hose engineered to replace the upper hose on specific import and domestic compact-car cooling systems. The EPDM rubber construction is suited for coolant exposure, while the molded shape helps maintain the original hose path and fitment geometry. This part is listed for 1989-1992 Mitsubishi Galant, upper; 1989-1991 Buick Skylark, upper; 1989-1991 Oldsmobile Cutlass Calais, upper; and 1989-1991 Pontiac Grand Am, upper. If you are sourcing a Gates 21756 replacement hose for a 1989-1992 Mitsubishi Galant upper radiator hose or a 1989-1991 Buick Skylark upper coolant hose, this listing matches the documented application data.

This part cross-references Dayco 71416 for the same application.

Common Problems This Hose Can Address

• Cracked or hardened upper radiator hose material
• Coolant leaks at the hose body from age-related wear
• Incorrect hose routing from a non-molded replacement
• Fitment issues caused by generic straight hose substitutions
• Cooling-system service needs on listed Galant, Skylark, Cutlass Calais, and Grand Am applications

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. Inspect the mating necks, clamps, and nearby cooling-system components for wear or corrosion, and replace any damaged parts before filling the system. Confirm the vehicle is listed in the fitment data as an upper hose application before ordering.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The Gates Molded Coolant Hose line is built to cover a wide range of replacement cooling-system needs while maintaining application-specific fitment.