Gates 51951 Radiator Coolant Hose - Upper

Upper Coolant Hose for Nissan Maxima

Gates 51951 is a molded radiator coolant hose built for specific vehicle applications and shaped to match OE-style routing. It serves the upper cooling circuit on the 2016-2023 Nissan Maxima and uses EPDM with plastic components for a precise fit in the engine bay.

The Gates Molded Coolant Hose line focuses on application-specific replacement parts that follow original equipment layouts, including integrated features found on the factory hose assembly. For buyers searching for a 2016-2023 Nissan Maxima upper radiator coolant hose, part number 51951 provides a direct-match option for the listed application.

Key Features

• Part number: 51951
• Brand: Gates
• Brand line: Molded Coolant Hose
• Part type: Radiator coolant hose
• Fits 2016-2023 Nissan Maxima, upper
• EPDM and plastic construction
• 1.28 in. / 33 mm inside diameter at both ends
• 24.5 in. / 622 mm centerline length
• Single-branch molded design
• OE-style integrated features for the listed application

Product Details

Gates 51951 is a molded upper coolant hose for the Nissan Maxima that follows the shape and connection points needed for the factory cooling layout. The hose is built from EPDM and plastic and includes a branch configuration with integrated OE-style elements such as an outlet and radiator fill tee, matching the requirements of the specified vehicle application. This makes it a practical replacement when the original upper hose shows wear, cracking, or leakage.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Hose Can Address

• Coolant seepage from a cracked or aged upper hose
• Softening, swelling, or collapse of the original hose material
• Improper routing after a previous repair
• Leaks at molded connection points or branch sections
• Cooling system service needs on a 2016-2023 Nissan Maxima

Installation Notes and Tips

Verify the hose routing, branch location, and end diameters against the removed part before installation. Inspect adjoining clamps, tees, and mating surfaces for corrosion, residue, or damage, and confirm the cooling system is properly filled and bled after service. For a 2016-2023 Nissan Maxima upper coolant hose replacement, matching the molded shape and connection layout is critical to proper fitment.

Quality Assurance

Gates is a recognized aftermarket supplier in molded coolant hose assemblies, and this part is built to application-specific OE-style dimensions for the listed Nissan Maxima fitment. Part number 51951 is intended to meet the requirements of the confirmed vehicle application.