Gates 21631 Radiator Coolant Hose - Upper

Gates 21631 Molded Coolant Hose Overview

The Gates 21631 molded coolant hose is an OE-style radiator hose built for upper coolant routing on select Ford trucks and SUVs. It uses EPDM construction and molded shaping to match the original hose path, helping maintain proper coolant flow in service applications.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant applications with OEM-quality specifications. That makes the 21631 a direct replacement choice for technicians and owners looking for a formed radiator coolant hose without sourcing from the dealer.

Key Features

• EPDM rubber construction for coolant-system durability
• Molded hose design for a formed OE-style fit
• End 1 inside diameter: 1.5 in. (38 mm)
• End 2 inside diameter: 1.75 in. (44 mm)
• Centerline length: 30.8 in. (782 mm)
• No spring, no modular hose sections, and no quick-connect fittings
• Upper radiator coolant hose application
• Part number: 21631

Detailed Description

Built as a molded radiator coolant hose, Gates 21631 follows the shape needed for upper cooling-system routing on 1987-1994 Ford Bronco, 1987-1994 Ford F-150, 1987-1994 Ford F-250, 1987-1994 Ford F-350, and 1987-1991 Ford F-200. The formed profile helps the hose route cleanly around engine bay components while maintaining the correct connection sizes at each end. This part number, 21631, is a practical replacement for aging factory hoses on Ford trucks and SUVs that need a shaped upper coolant hose.

This part cross-references Continental (e.g., 61460, 62482) for the same application.

What It Helps Solve

• Cracked or hardened upper radiator hose material
• Coolant leaks at the hose body or connection points
• Collapsed or misshaped hose routing from age and heat
• Restricted coolant flow caused by deteriorated hose construction
• Replacement needs on Ford Bronco, F-150, F-250, F-350, and F-200 cooling systems

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length before installation. Compare the original hose shape to the Gates 21631 to confirm upper hose orientation and connection fitment on the vehicle. Inspect clamps, necks, and adjoining cooling-system components for wear before reassembly.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in radiator and engine cooling systems. The EPDM material and molded construction support consistent fitment on the listed Ford applications.