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User Guide

Analysis Report: Power Steering (Japanese Market)

EPS technology advances with ADAS implementation

2026/11/02

List of Suppliers
I. Introduction
II. List of power steering suppliers and their major customers
Order status by supplier, from OEMs
Order status by OEMs from Japanese power steering assembly suppliers
III. Trends in power steering components
1. History and recent technology trends
2. Types of power steering systems
3. Recalls related to EPS
IV. Overview of power steering assembly suppliers
V. Sales comparison of major power steering suppliers
VI. Global development of major power steering component suppliers

List of Suppliers

JTEKT Corporation (JTEKT)
NSK Steering & Control, Inc. (NSK Steering & Control)
Astemo, Ltd. (Astemo)
KYB Corporation (KYB)

Power Steering (European and U.S. Markets)

Power Steering (Chinese Market)

I. Introduction

The steering mechanism is a critical component related to "turning," one of the three basic performance requirements of a vehicle: "driving, turning, stopping." In particular, power steering, along with automatic transmissions and air conditioners, has become widespread as a technology that reduces the burden of driving and enhances comfort. In recent years, systems have become redundant and highly functional, and they have become important components that support the CASE technology (Connected, Autonomous, Sharing, and Electrification) era. This report describes four power steering system suppliers (JTEKT, NSK Steering & Control, Astemo, and KYB) and their products in the Japanese market, focusing on models, excluding commercial vehicles, produced in Japan by the eight Japanese automakers. For details on ZF Friedrichshafen AG (ZF) and Robert Bosch GmbH (Bosch), which are used in some Japanese cars, please refer to “Power Steering (European and U.S. Markets).” Furthermore, this report omits any discussion of electro-hydraulic and hydraulic power steering systems, as they are rarely adopted in new vehicles.

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