Gates 23383 Radiator Coolant Hose - Upper or Upper - Radiator To Engine

Gates 23383 Molded Upper Coolant Hose

Gates 23383 is a molded radiator coolant hose built for upper cooling-system routing on select Chevrolet Express and GMC Savana vans. It uses EPDM construction and OEM-quality dimensions to match the original hose shape and fitment requirements for service replacement.

Key Features

• EPDM rubber construction for coolant-system use
• Molded hose profile for proper routing and fit
• 1.29 in. inside diameter at both ends
• 45.9 in. centerline length
• No spring, no branch, and no quick-connect fittings
• Direct replacement for upper radiator coolant hose applications

Product Details

This Gates Molded Coolant Hose line is built to cover upper, lower, bypass, heater, and other coolant applications with OEM-style specifications. Part number 23383 is a molded upper radiator coolant hose for vehicles that require the original hose shape and dimensions, helping maintain proper coolant flow and routing in the engine bay. It is a direct service replacement for Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 upper hose applications, and it also applies to Chevrolet Express 1500 and GMC Savana 1500 upper hose fitments.

This part cross-references Dayco 72377 for the same application.

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 after replacement with a universal hose
• Cooling-system service on Chevrolet Express and GMC Savana vans

Installation Notes and Tips

Verify the hose routing against the original part before installation. Inspect adjoining necks, clamps, and coolant passages for wear, corrosion, or residue before installing Gates 23383. Confirm the upper hose application by year, make, model, and position: Fits 2007-2020 Chevrolet Express 2500, Upper; Fits 2007-2020 Chevrolet Express 3500, Upper; Fits 2007-2020 GMC Savana 2500, Upper; Fits 2007-2020 GMC Savana 3500, Upper; Fits 2008-2014 Chevrolet Express 1500, Upper; Fits 2008-2014 GMC Savana 1500, Upper.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for radiator hose replacement service. Part number 23383 is built as a molded EPDM coolant hose for the listed upper-hose applications.