Gates 43520 Engine Water Pump - Main

Gates 43520 Water Pump for Nissan and INFINITI

The Gates 43520 engine water pump is a standard replacement for a wide range of Nissan, INFINITI, and Suzuki applications. Built with a cast aluminum housing, stamped steel impeller, and reverse rotation design, it supports reliable coolant circulation for vehicles such as the Nissan Altima, Maxima, Murano, Frontier, Pathfinder, and Xterra.

Gates Water Pump (Standard) components are built for OE-style fit and consistent operation. This part number, 43520, includes a pulley and O-ring, and it is engineered for accessory-belt-driven systems rather than timing-belt drive setups.

Key Features

• Cast aluminum housing for durable cooling-system service
• Stamped steel impeller for dependable coolant movement
• Reverse rotation design for listed vehicle applications
• Accessory belt drive style
• Pulley included; back housing, thermostat housing, and fan clutch not included
• 100% functional testing of seals and bearings
• 100% leakage testing of the casting and assembled pump

Detailed Description

Gates 43520 is an engine water pump built for direct replacement use on many Nissan and INFINITI models, including the Nissan Altima, Maxima, Murano, Quest, Pathfinder, Frontier, and Xterra. It also covers select INFINITI applications such as the G35, FX35, M35, I35, G25, JX35, and QX60, along with the Suzuki Equator. The reverse-rotation design and accessory-belt drive configuration make it important to match the pump to the exact engine setup before installation.

This Gates water pump line is positioned as a standard OE-style replacement with premium alloy construction and factory-level testing. Part number 43520 is supplied with an O-ring and pulley, helping streamline service on cooling-system repairs where the original pump has worn bearings, seal leakage, or reduced coolant flow.

This part cross-references Airtex AW6198 and Dayco DP1118 for the same application.

Common Repair Uses

• Coolant leakage from the pump housing or seal area
• Noise or roughness from worn pump bearings
• Overheating caused by reduced coolant circulation
• Maintenance replacement during cooling-system service
• Restoring proper operation on reverse-rotation accessory-belt systems

Installation Notes and Tips

• Verify engine configuration and pump rotation before ordering or installing.
• Inspect the belt drive, pulley alignment, and coolant passages during replacement.
• Replace the O-ring and clean the mounting surface before assembly.
• Flush contaminated coolant if the old pump failed from corrosion or debris.
• Confirm fitment for your exact Nissan Murano, Altima, Maxima, Pathfinder, or INFINITI application using the vehicle year and engine details.

Quality Assurance

Gates manufactures this water pump with premium alloy materials and tests each unit for seal and bearing function as well as leakage integrity. The result is an OE-quality fit and a cooling-system replacement built for dependable service.