Gates 22531 Radiator Coolant Hose - Upper or Upper - Radiator To Pipe

Gates 22531 Molded Coolant Hose

The Gates 22531 molded coolant hose is an OE-style radiator coolant hose built for upper cooling system routing. Made from EPDM, it follows the molded shape needed for a precise coolant path on select Nissan Pathfinder and INFINITI QX4 applications.

Gates Molded Coolant Hose products are built for radiator, heater, bypass, upper, lower, and other coolant system locations using OEM-quality specifications. 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: 22531
• Brand: Gates Molded Coolant Hose
• Material: EPDM for coolant system service
• Molded hose construction for a formed factory-style route
• End 1 inside diameter: 1.34 in. / 34 mm
• End 2 inside diameter: 1.34 in. / 34 mm
• Centerline length: 9.1 in. / 231 mm
• Contains spring: No
• Quick connect fittings: 0

Detailed Description

This radiator coolant hose is a direct-fit style replacement for select 2001-2004 Nissan Pathfinder upper radiator-to-pipe applications and 2001-2003 INFINITI QX4 upper cooling system routing. The molded shape helps match the original hose path, which is important in tight engine bays where hose geometry affects fit and routing. If you are replacing a worn Nissan Pathfinder upper radiator hose or servicing an INFINITI QX4 cooling line, Gates 22531 provides the correct formed profile for the application.

This part cross-references Dayco 72110 and Anchor 9164 for the same application.

What It Helps Fix

• Coolant leaks from a cracked or aged upper radiator hose
• Softening, swelling, or collapse in an EPDM coolant hose
• Poor hose routing caused by a deformed factory hose
• Cooling system service on a 2001-2004 Nissan Pathfinder
• Cooling system hose replacement on a 2001-2003 INFINITI QX4

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length against the original part before installation. Inspect adjoining pipes, clamps, and sealing surfaces for wear or corrosion, and confirm the hose is seated fully at both ends after coolant system service. For best results, replace coolant according to the vehicle service procedure after hose installation.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for formed cooling system applications. The Gates 22531 part number is intended for accurate replacement fitment on the listed Nissan Pathfinder and INFINITI QX4 vehicles.