Gates 21458 Radiator Coolant Hose - Heater, Heater To Pipe or Pipe To Engine

Gates 21458 Molded Coolant Hose Overview

Gates 21458 is a molded radiator coolant hose built for upper, lower, bypass, heater, and other coolant routing applications that require an OEM-style shape and fit. Made from EPDM, it is formed to match the original hose path for service on select Volkswagen cooling and heater circuits.

This molded coolant hose is part of the Gates Molded Coolant Hose line, which covers a wide range of replacement hose applications for radiator and HVAC systems. For Volkswagen Jetta, Rabbit Convertible, and Rabbit Pickup service, Gates 21458 helps replace a worn or damaged hose with the correct molded profile.

Key Features

• EPDM construction for coolant system service
• Molded design for accurate routing and fit
• End 1 inside diameter: 16 mm (.62 in)
• End 2 inside diameter: 24 mm (.94 in)
• Centerline length: 274 mm (10.8 in)
• No spring and no quick-connect fittings
• Direct replacement style for radiator and heater hose applications

Detailed Product Description

Gates 21458 is a molded coolant hose engineered to follow the original hose path in select Volkswagen applications. Its EPDM material is suited for coolant transfer, while the molded shape supports proper routing between the pipe and engine or heater to pipe connections. This part number is commonly searched as Gates 21458 coolant hose and Gates 21458 radiator hose for Volkswagen cooling system repair.

Compatible With 1980 Volkswagen Jetta, Pipe To Engine; 1980 Volkswagen Rabbit Convertible, Pipe To Engine; 1980-1983 Volkswagen Rabbit Pickup, Pipe To Engine; 1981-1984 Volkswagen Jetta, Pipe To Engine; 1983-1984 Volkswagen Jetta, Heater To Pipe; 1983-1984 Volkswagen Rabbit Convertible, Heater To Pipe. This part cross-references Dayco 71423 and Four Seasons 63028 for the same application.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged hose
• Softening, swelling, or collapse in the original hose
• Improper hose routing after prior repairs
• Loss of heater or radiator coolant flow
• Replacement of a damaged molded hose on Volkswagen cooling systems

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. Compare the original hose shape to the molded profile to confirm the pipe-to-engine or heater-to-pipe application. Inspect adjoining clamps, pipes, and fittings for corrosion or wear before reassembly.

Quality Assurance

Gates Molded Coolant Hose products are manufactured to OEM-quality specifications for replacement cooling system service. Gates 21458 is built to match the intended application for select Volkswagen Jetta, Rabbit Convertible, and Rabbit Pickup models.