Hitachi PSP0044 Power Steering Pump

OE Power Steering Pump for Pathfinder and QX4

The Hitachi PSP0044 is a new power steering pump built for direct replacement on select Nissan and INFINITI applications. It is an actual OE-grade component with bolt-on pulley attachment, pulley included, and no reservoir included, making it a focused replacement for steering systems that need restored hydraulic pressure and consistent assist.

Compatible with 2001-2004 Nissan Pathfinder and 2001-2003 INFINITI QX4, this Hitachi power steering pump is a fitment-specific solution for drivers searching for a 2001-2004 Nissan Pathfinder power steering pump or a 2001-2003 INFINITI QX4 steering pump replacement. Part number PSP0044 is also a useful reference when matching the correct OE-style unit.

Key Features

• New power steering pump from Hitachi
• Actual OE-grade replacement for select Nissan and INFINITI vehicles
• Bolt-on pulley attachment type
• Pulley included
• No reservoir included
• Copper washer included for installation sealing
• Direct reference part number: PSP0044

Detailed Description

Hitachi PSP0044 is engineered for steering systems that require a replacement pump with OE-style fit and function. It cross-references 49110-4W000 and 49110-4W01A for the same application. Use this pump when servicing hydraulic steering on the Nissan Pathfinder and INFINITI QX4 platforms listed below. The design includes a bolt-on pulley attachment and comes as a new unit, which helps simplify parts matching during steering repair work.

Fits 2001-2004 Nissan Pathfinder, N/A. Fits 2001-2003 INFINITI QX4, N/A. Search terms such as Hitachi PSP0044 power steering pump, Nissan Pathfinder steering pump replacement, and INFINITI QX4 power steering pump OE replacement all point to this application-specific part.

What It Is Used For

• Restoring power steering assist when the original pump is worn or failing
• Addressing whining, groaning, or pump noise from the hydraulic steering system
• Correcting low steering assist or heavy steering effort
• Replacing a leaking or pressure-losing steering pump assembly
• Servicing OE-style steering components on Pathfinder and QX4 models

Installation Notes and Tips

Verify pulley attachment style, reservoir configuration, and OE part number before installation. This pump uses a bolt-on pulley attachment and does not include a reservoir. The copper washer is included; confirm sealing surfaces are clean and inspect related hoses, fluid condition, and belt wear during service. Follow the vehicle service manual for bleeding the power steering system after installation.

Quality Assurance

Hitachi supplies this PSP0044 as a new, OE-grade replacement power steering pump for the listed Nissan Pathfinder and INFINITI QX4 applications. The part is built to match the specified vehicle fitment and OE cross-reference requirements for accurate replacement selection.