Hitachi PSP0021 Power Steering Pump

OE Power Steering Pump for Infiniti Q45

The Hitachi PSP0021 is a new power steering pump built for select Infiniti Q45 applications. It is an actual OE-grade replacement with a bolt-on pulley attachment type and a pulley included, making it a direct service part for restoring steering assist performance.

For drivers searching for a 1998 Infiniti Q45 power steering pump or a 1999-2001 Infiniti Q45 power steering pump, this Hitachi unit provides the correct OE-style fitment and hardware interface for the listed vehicles.

Key Features

• Brand: Hitachi
• Part number: PSP0021
• New power steering pump
• Actual OE grade construction
• Bolt-on pulley attachment type
• Pulley included
• Copper washer included
• Mounting hardware not included
• Manufacturer cross-reference support for OE-style replacement sourcing

Detailed Description

The Hitachi PSP0021 power steering pump is engineered for select Infiniti Q45 models and is listed as new, not remanufactured. It is specified with a bolt-on pulley attachment type and includes the pulley, which helps match the original vehicle configuration during replacement. The pump also includes a copper washer, and the application notes indicate OE-grade construction for the listed Infiniti Q45 fitments. This part cross-references OE-style part numbers 49110-7P000 and 215411 for the same application.

Compatible With: 1998 Infiniti Q45, N/A; 1999-2001 Infiniti Q45, N/A. The Hitachi PSP0021 is a focused replacement choice for Infiniti Q45 steering service where the original pump has worn, leaked, or lost hydraulic output.

What It Helps Fix

• Heavy or inconsistent steering effort
• Whining or groaning from the power steering system
• Hydraulic fluid leaks at the pump area
• Reduced steering assist at low speeds
• Failure of the original pump to maintain pressure

Installation Notes and Tips

Verify vehicle fitment by year and model before installation. This pump uses a bolt-on pulley attachment type and does not include mounting hardware, so reuse or source the correct hardware as needed for the service. Inspect the belt, hoses, and fluid condition during replacement to help protect the new pump and restore proper steering system operation.

Quality Assurance

Hitachi supplies OE-grade automotive components, and this PSP0021 pump is listed as a new replacement part for the specified Infiniti Q45 applications. Confirm all vehicle details against the fitment data before ordering.