555

About 555 — Sankei Industry Co., Ltd.

555, the brand name of Sankei Industry Co., Ltd., stands as one of Japan's most trusted names in chassis components. 555 (Triple Five) has been synonymous with precision suspension and steering engineering since the company was founded in Ritto, Shiga Prefecture in September 1960. Over six decades later, the brand's instantly recognizable red-and-white packaging signals OEM-level quality to professional mechanics and enthusiasts around the world.

A Global Reach Rooted in Japanese Craftsmanship

What began as a focused Japanese aftermarket manufacturer has grown into a truly global operation. 555 brand products are currently relied upon as critical safety components in more than 120 countries, representing approximately 98% of Sankei Industry's total product output. That international trust has been earned through a disciplined approach to quality: every component is designed using CAD software and subjected to rigorous real-world endurance testing before it ever reaches a vehicle. In August 1999, Sankei received ISO 9001 certification — an internationally recognized standard for quality management systems — and has continued to raise the bar ever since.

The brand's commitment to excellence has not gone unnoticed at the OEM level. Sankei Industry has received the Excellent Supplier Award with Development Award from Honda Motor Co., Ltd., and its ball joints and other chassis parts are supplied directly to assembly lines of major Japanese automakers including Toyota, Honda, Nissan, and Mazda.

Suspension & Steering: Where 555 Excels

555's catalog is deliberately focused. Rather than spreading across dozens of unrelated categories, Sankei has dedicated over 60 years of engineering resources to perfecting two interconnected systems: wheel suspension and steering. The result is a product range that covers everything from light passenger cars to trucks, and from current-production vehicles to older and discontinued models that can be difficult to source parts for elsewhere.

At the heart of the lineup are suspension ball joints — one of the brand's signature products and an area where Sankei has developed unique high-strength, self-lubricating metal designs, including variants that press directly into a control arm. Complementing these are steering tie rod ends, engineered with special resin formulations for exceptionally smooth steering feel and precise wheel alignment geometry. For vehicles with recirculating-ball steering systems, 555's steering idler arms and steering center links offer the kind of rugged durability needed to handle heavy steering inputs on rough terrain. Rounding out the chassis lineup, suspension stabilizer bar links from 555 feature a proprietary joint structure specifically engineered to prevent disconnection even under extreme pull-out loads — a detail that reflects Sankei's design philosophy of anticipating the harshest real-world conditions.

Why Choose 555?

• Made in Japan: Key components manufactured in Sankei's domestic plants in Shiga Prefecture to strict technological standards.
• OEM heritage: Parts supplied to major Japanese automakers' assembly lines and recognized for meeting or exceeding factory specifications.
• Broad vehicle coverage: Products span light cars, passenger vehicles, and commercial trucks — including hard-to-find parts for older and discontinued models.
• ISO 9001 certified: A quality management system that drives continuous improvement across every stage of production.
• Proven durability: Designed for demanding conditions — unpaved roads, extreme temperatures, and high-mileage use — not just well-maintained highways.