Gates 23339 Radiator Coolant Hose - Upper

Gates 23339 Molded Coolant Hose Overview

The Gates 23339 molded coolant hose is an OE-style radiator coolant hose built for upper cooling-system routing on select Nissan and INFINITI vehicles. It uses EPDM construction and molded shaping to match the factory hose path for a direct replacement on covered applications.

Compatible With 2007-2020 Nissan 370Z and select INFINITI models, this hose supports upper radiator coolant flow where a formed hose is required. Gates Molded Coolant Hose line is engineered for broad replacement coverage across upper, lower, bypass, heater, and other coolant applications.

Key Features

• Part number: 23339
• Brand: Gates Molded Coolant Hose
• Part type: radiator coolant hose
• EPDM rubber construction for coolant-system service
• Molded design for factory-style routing
• End 1 inside diameter: 1.32 in. (34 mm)
• End 2 inside diameter: 1.32 in. (34 mm)
• Centerline length: 14.6 in. (371 mm)
• No spring, no modular hose, no quick-connect fittings

Product Details

Gates 23339 is a molded upper coolant hose made to replace the original radiator hose on specific Nissan 370Z and INFINITI applications. The EPDM material is commonly used in cooling systems for its resistance to heat and coolant exposure, while the molded shape helps maintain the correct hose path in tight engine bays. This part number 23339 is also cross-referenced to Continental 66307 for the same application.

Common Problems This Hose Can Address

• Cracked or split upper radiator hose
• Coolant seepage at the hose body
• Softening, swelling, or collapse of an aging hose
• Incorrect fit from a universal hose replacement
• Loss of factory-style routing in the cooling system

Installation Notes

Verify hose routing, end diameters, and centerline length before installation. This molded hose is listed for upper-position applications only, so confirm the vehicle and engine-side routing against the original part. Inspect hose clamps, necks, and adjoining cooling-system components for wear before reassembly.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The Gates molded coolant hose line is built to cover a wide range of replacement cooling needs, helping simplify radiator hose replacement on supported Nissan and INFINITI models.

Vehicle Fitment

• Fits 2009-2020 Nissan 370Z, Upper
• Fits 2014-2017 INFINITI QX50, Upper
• Fits 2015 INFINITI Q40, Upper
• Fits 2014-2015 INFINITI Q60, Upper
• Fits 2013 INFINITI EX37, Upper
• Fits 2008-2013 INFINITI G37, Upper
• Fits 2008-2012 INFINITI EX35, Upper
• Fits 2011-2012 INFINITI G25, Upper
• Fits 2007-2008 INFINITI G35, Upper