Hitachi Auto Products Rack and Pinion Assembly

Hitachi Auto Products Rack and Pinion Assemblies: OE Precision for Your Steering System

When a steering rack wears out, the difference between a budget remanufactured unit and a genuine OE-quality replacement becomes immediately apparent behind the wheel. Hitachi Auto Products has built its reputation as a Tier 1 OEM supplier to major automakers worldwide, and that same engineering discipline carries directly into its Rack and Pinion Assembly lineup — making Hitachi one of the most trusted names for steering gear replacement in the aftermarket.

New from the Factory, Not Remanufactured

One of Hitachi's most important distinctions in the rack and pinion category is that its units are brand-new assemblies — not remanufactured cores. Hitachi rack and pinion systems are actual OE parts, brand new from the factory, complete with required grommets and inner and outer tie rods for a completely new install. This means the entire steering interface — from the housing seals to the tie rod ends — is fresh, eliminating the uncertainty that can come with rebuilt components.

Built for Durability and Serviceability

Hitachi's PSG-series rack and pinion assemblies are engineered with materials chosen for both strength and longevity. These units are made from a combination of high-strength steel alloy for durability and aluminum for weight reduction and better heat dissipation. The design also prioritizes long-term serviceability: Hitachi's rack and pinion allows for full range of adjustability of the pinion to rack engagement gears and the ability to replace individual hydraulic lines if they become damaged.

Installation precision is equally important, and Hitachi addresses this with exacting manufacturing tolerances. Precision-machined installation points allow for proper installation of any auxiliary components that were on the vehicle originally, such as Speed Sensitive Power Steering modules.

Engineered for the Road — and Tested Accordingly

Hitachi doesn't simply manufacture to spec — it validates performance under real-world conditions. The Hitachi Rack and Pinion Assembly features precision oil and lip seals to keep road debris out of the inner tie rod and the rack shaft, preventing premature wear and extending the lifespan of the steering rack. Beyond debris protection, each assembly is tie-rod-load and road-simulated for proper functioning through a long-lasting service life, and hydraulically pressure tested to ensure internal bypass for both high and low pressure.

The result is a steering gear that, as Hitachi's Rack and Pinion Steering Gears (PSGs) describe, provides effortless turning with precise steering response. High-quality, precision-machined components ensure reliable, leak-free operation.

OEM Heritage, Aftermarket Availability

Hitachi is a Tier 1 OE supplier for rack and pinion steering gears, meaning the designs behind its aftermarket products trace directly back to the assemblies installed on vehicles at the factory. Hitachi has been universally recognized as an OE manufacturer serving major carmakers worldwide, adhering to ISO/TS 16949:2009 industry standards. For Nissan, Infiniti, and other platform vehicles where Hitachi has deep OEM involvement, this lineage is especially significant — the part you're installing may be virtually identical to what left the production line.

• Brand-new assemblies — not remanufactured cores
• Inner and outer tie rods included for a complete, all-new steering interface
• High-strength steel alloy and aluminum construction for durability and heat management
• Precision oil and lip seals to guard against debris and premature wear
• Hydraulically pressure tested for high- and low-pressure internal bypass
• Precision-machined mounting points compatible with OEM auxiliary systems
• Tier 1 OEM supplier pedigree — ISO/TS 16949:2009 certified manufacturing

For drivers and technicians who want to restore steering to factory-fresh feel without compromise, Hitachi's rack and pinion assemblies represent a compelling intersection of OE engineering and aftermarket accessibility. Browse the full selection of Hitachi Rack and Pinion Assemblies to find the right fit for your vehicle.