Gates 21930 Radiator Coolant Hose - Upper

Gates 21930 Molded Coolant Hose for Dodge Trucks

The Gates 21930 molded coolant hose is built for upper radiator hose applications on select Dodge D250, D350, W250, and W350 trucks. Made from EPDM and formed to OEM-quality specifications, it provides a direct replacement for the original molded hose shape and routing.

Gates Molded Coolant Hose parts are engineered for radiator, heater, bypass, and other coolant system locations where a formed hose is required. This line is built to cover a wide range of replacement needs while matching the fit and contour expected in factory-style cooling system service.

Key Features

• EPDM construction for coolant system durability
• Molded design for proper routing and fit
• 1.75 in. inside diameter at both ends
• 24.1 in. centerline length
• Upper radiator hose application
• Direct replacement for Gates 21930

Detailed Description

This radiator coolant hose is designed for 1991-1993 Dodge D250, D350, W250, and W350 upper hose applications. It matches the molded shape needed for factory-style coolant routing and is listed for 1991 trucks with intercooler notes where specified. The Gates 21930 part number is also referenced by aftermarket cross numbers such as Dayco 71594 and Continental 61758 for the same application.

For buyers searching for a Dodge D250 upper radiator hose, Dodge W350 molded coolant hose, or a Gates 21930 replacement hose, this part provides the correct formed profile for service on the listed trucks. The EPDM material is commonly used in cooling system hoses for resistance to heat and coolant exposure.

Common Problems This Hose Can Address

• Cracked or split upper radiator hose
• Coolant leaks at the hose body
• Collapsed or softened hose material
• Poor hose routing from an incorrect straight hose replacement
• Cooling system service on aging Dodge D250, D350, W250, or W350 trucks

Installation Notes and Tips

Verify the hose shape, end diameters, and centerline length against the original part before installation. Inspect hose clamps, radiator necks, and adjoining coolant components for wear or corrosion, and replace any damaged sealing surfaces during service. Confirm the vehicle is listed in the fitment data before ordering.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The brand’s molded hose line is built to cover a broad range of replacement cooling system needs while maintaining factory-style fitment for service work.