Hitachi Auto Products Power Steering Pump

Hitachi Auto Products Power Steering Pumps: OEM Precision for the Aftermarket

Hitachi Auto Products has been engineering automotive components since 1930, and their expertise shows clearly in their line of power steering pumps. Drawing on decades of original equipment manufacturing experience, Hitachi approaches the aftermarket with the same standards it applies to supplying major automakers — making their PSP (Power Steering Pump) lineup a compelling choice for drivers who refuse to compromise on quality.

What Sets Hitachi Power Steering Pumps Apart

At the core of every Hitachi PSP is a thoughtfully engineered construction that balances durability, efficiency, and refinement. The pumps feature a cast aluminum housing that keeps weight to a minimum while delivering high thermal efficiency — an important consideration for a component that operates under continuous heat and hydraulic pressure. Inside, machined steel internals provide the structural strength needed for long-term reliability.

One of the most notable engineering highlights is Hitachi's approach to surface finishing. Precision machined surfaces reduce pressure loss and provide quieter operating characteristics — a tangible benefit you feel behind the wheel. The housing and internal components are precision machined to increase pump efficiency and decrease Noise, Vibration, and Harshness (NVH) characteristics, resulting in a smoother, more refined steering feel compared to many competing products.

Engineered for Efficiency and Driving Comfort

Hitachi power steering pumps offer high displacement for reduced turning effort, making maneuvering at low speeds and parking significantly easier. The low-friction internal design promotes even hydraulic fluid flow, which contributes to overall engine efficiency by reducing parasitic load. This means the pump not only improves steering feel but also plays a small but meaningful role in fuel economy.

All Hitachi PSPs are designed to meet the exact needs of each specific vehicle application, arriving brand new with the necessary gaskets and hardware to streamline installation. Hitachi's philosophy of "Quality, Cost, Development, Delivery, and Speed" — known internally as QCDDS — has guided the brand's product development since its earliest days in the automotive space, ensuring each pump is engineered to OEM fit and function standards.

Built on a Legacy of OEM Manufacturing

Hitachi's power steering pumps are the product of a company that has been a Tier 1 supplier to major global automakers for generations. Because Hitachi manufactures many of the same components for OEMs, aftermarket buyers can trust that fit, finish, and performance are held to the same rigorous benchmarks. Hitachi manufactures its products in ISO/TS 16949 certified plants, ensuring quality management standards are upheld at every stage of production.

Whether you're replacing a worn-out unit on a Nissan Armada, an Infiniti QX56, or another compatible application, Hitachi's PSP lineup offers a factory-quality solution backed by a brand with over 90 years of automotive manufacturing heritage.