Gates 22478 Radiator Coolant Hose - Lower - Radiator To Pipe

Gates 22478 Molded Coolant Hose Overview

Gates 22478 is a molded radiator coolant hose built to OE-style specifications for select Nissan cooling system applications. It is formed from EPDM and shaped for the lower radiator-to-pipe route used on 1999-2004 Nissan Frontier and 2000-2004 Nissan Xterra models.

The Gates Molded Coolant Hose line is engineered for upper, lower, bypass, heater, and other coolant routing needs, giving technicians a direct replacement option for common radiator hose service on Nissan Frontier and Nissan Xterra applications.

Key Features

• EPDM construction for coolant system service
• Molded shape for the lower radiator to pipe position
• End 1 inside diameter: 1.34 in. (34 mm)
• End 2 inside diameter: 1.55 in. (39 mm)
• Centerline length: 20 in. (508 mm)
• No spring, no modular hose design, and no quick connect fittings
• Direct replacement part number: Gates 22478

Detailed Description

Gates 22478 is a molded radiator coolant hose designed for the lower radiator-to-pipe location on 1999-2004 Nissan Frontier and 2000-2004 Nissan Xterra vehicles. The molded profile helps match the factory hose routing, while the EPDM material is suited for everyday coolant system temperatures and exposure. This part cross-references Continental 62516 for the same application.

For buyers searching for a 1999-2004 Nissan Frontier lower radiator hose, a 2000-2004 Nissan Xterra coolant hose, or Gates 22478 radiator hose replacement, this part provides a fitment-specific solution based on the listed OE-style dimensions and molded configuration.

What This Hose Helps Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse in the factory hose
• Improper hose routing after cooling system repair
• Loss of coolant caused by deterioration at the hose ends
• Service replacement for a worn Nissan Frontier or Xterra radiator hose

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length against the removed part before installation. Inspect the radiator neck, pipe connection, and clamps for wear or corrosion, and replace any damaged sealing surfaces before installing the new hose. Confirm the hose is seated fully and routed without twist or interference.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for radiator, heater, bypass, and other cooling system applications. Gates 22478 is built as a direct-fit replacement for the listed Nissan Frontier and Nissan Xterra applications.