Gates 22970 Radiator Coolant Hose - Lower

Gates 22970 Molded Coolant Hose

The Gates 22970 molded coolant hose is a direct-fit radiator coolant hose built for lower cooling-system routing on select Infiniti and Nissan vehicles. Made from EPDM and formed to OEM-style dimensions, it supports a clean, factory-style hose path for service replacement.

Compatible with 2002-2004 Infiniti I35, 2003 Infiniti M45, 2002-2003 Infiniti Q45, and 2002-2003 Nissan Maxima in the lower hose position, this molded hose is shaped for the application rather than cut-to-fit use.

Key Features

• Brand: Gates Molded Coolant Hose line
• Part number: 22970
• EPDM construction for coolant-system service
• Molded design for OEM-style routing
• End inside diameter: 1.31 in. (33 mm) at both ends
• Centerline length: 17.6 in. (447 mm)
• No spring, no branch, and no quick-connect fittings
• Lower radiator coolant hose application

Product Details

Gates Molded Coolant Hose products are built for upper, lower, bypass, heater, and other coolant-system applications using OEM-quality specifications. The Gates 22970 follows that approach with a molded EPDM profile that matches the intended routing for the lower hose position on the listed Infiniti and Nissan models. If you are replacing a worn lower radiator hose on a 2002-2004 Infiniti I35 or a 2002-2003 Nissan Maxima, this hose provides a direct replacement path without the need to adapt a universal hose.

This part cross-references Dayco 72144 and Four Seasons 66179 for the same application.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the original hose material
• Improper hose routing after a previous repair
• Loss of coolant from a deteriorated molded hose section
• Service delays caused by searching for an OE-style replacement hose

Installation Notes and Tips

Confirm the lower hose routing and end diameters before installation. Inspect hose clamps, thermostat housing connections, radiator necks, and nearby fittings for corrosion or damage before installing the new hose. Drain coolant to a safe level, transfer the hose along the original path, and verify that the hose is seated fully at both ends before refilling and bleeding the cooling system.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The molded EPDM construction and application-specific shape support a factory-style replacement for the lower cooling circuit on compatible Infiniti and Nissan vehicles.