Gates 21398 Radiator Coolant Hose - Lower or Upper

Gates 21398 Molded Coolant Hose Overview

The Gates 21398 molded coolant hose is an OE-style radiator coolant hose built for upper cooling system service. Made from EPDM and formed to the correct molded shape, it supports direct replacement on select Chevrolet Tracker, Suzuki Vitara, Hyundai Elantra, Toyota 4Runner, Toyota Pickup, Dodge Power Ram 50, and Dodge Ram 50 applications.

Gates Molded Coolant Hose products are built to OEM-quality specifications for upper, lower, bypass, heater, and other coolant routing needs. This line is engineered to simplify radiator hose replacement on vehicles that require a formed hose profile rather than a universal straight hose.

Key Features

• Part number: 21398
• Brand: Gates Molded Coolant Hose
• Material: EPDM for coolant-system service
• Molded hose construction for proper routing and fit
• End inside diameter: 1.38 in. (35 mm) at both ends
• Centerline length: 13.6 in. (345 mm)
• No spring and no quick-connect fittings
• Upper radiator coolant hose application

Detailed Description

Gates 21398 is a molded radiator coolant hose designed for vehicles that need a shaped upper hose to maintain correct coolant routing and clearance. The EPDM construction is suited for cooling-system temperatures and exposure, while the molded profile helps match the original hose path. This part number is used across multiple import and compact truck applications, including 1999-2002 Chevrolet Tracker upper hose service, 1999-2002 Suzuki Vitara upper hose service, and select Toyota and Hyundai upper hose applications. If you are replacing a worn upper radiator hose on a Toyota 4Runner, Toyota Pickup, or Hyundai Elantra, this hose provides a direct-fit replacement option. This part cross-references Dayco 71262 for the same application.

Common Problems This Hose Can Address

• Cracked or hardened upper radiator hose material
• Coolant leaks at the hose body or connection points
• Collapsed or misshaped hose routing
• Overheating caused by restricted coolant flow
• Replacement needs after age-related rubber deterioration

Installation Notes and Tips

Verify the vehicle’s year, make, model, and upper hose routing before installation. Compare the molded shape, end diameters, and centerline length to the original hose to confirm proper alignment. Inspect hose clamps, necks, and adjoining cooling-system components for wear before installing the new hose. Drain coolant as needed and refill the system according to the vehicle manufacturer’s service procedure.

Quality Assurance

Gates molded coolant hoses are manufactured to OEM-quality specifications for replacement cooling-system service. The Gates 21398 is part of a comprehensive molded hose line used for radiator and heater hose applications across a wide range of vehicles.

Fitment

• Fits 1999-2002 Chevrolet Tracker, Upper; radiator and HVAC compatible coolant and heater hose.
• Fits 1999-2002 Suzuki Vitara, Upper; radiator and HVAC compatible coolant and heater hose.
• Fits 1992-1995 Hyundai Elantra, Upper.
• Fits 1985-1995 Toyota 4Runner, Upper.
• Fits 1984-1995 Toyota Pickup, Upper.
• Fits 1984 Dodge Power Ram 50, Upper.
• Fits 1984 Dodge Ram 50, Upper.