KYB SR4559 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus SR4559 for Mazda 6

The KYB Strut-Plus SR4559 is a front left suspension strut and coil spring assembly for 2009-2013 Mazda 6 models. Built to restore OE ride height, handling, and steering response, it is engineered for direct replacement on the specified application.

Key Features

• OE-style replacement choice for Asian vehicles
• Includes a KYB Excel-G strut, a stronger steel outer shell, and application-specific damping valves
• High carbon steel coil spring is matched to vehicle attributes and corner weights to help restore ride height within OE specifications
• Exact fitment, pre-assembled for professional results
• Assembled in the USA
• Engineered to help vehicles with electronic safety systems such as ESC and ABS
• Recipient of a 2018 industry award in the import aftermarket category

Product Details

KYB Strut-Plus SR4559 is part of the KYB Strut-Plus line, a pre-assembled suspension solution built around KYB’s OE-restoring strut design. For the Mazda 6, front left fitment is matched to the vehicle’s suspension geometry so the assembly can restore ride height, steering pivot function, and stability control characteristics that depend on proper strut performance. This part cross-references Monroe Shocks & Struts (e.g., 172569, 172625) for the same application.

What It Helps Address

• Excessive front-end bounce or poor damping control
• Uneven or sagging ride height at the front left corner
• Clunking or worn suspension feel from a failing strut assembly
• Reduced steering precision during cornering and lane changes
• Suspension performance issues on Mazda 6 vehicles with ESC or ABS systems

Installation Notes

Fits 2009-2013 Mazda 6, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify side, position, and vehicle configuration before installation. The SR4559 is pre-assembled for direct replacement on the listed application, which helps streamline professional installation.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered around OE-restoring suspension specifications for the listed Mazda 6 application. The SR4559 is assembled in the USA and built with application-specific damping and spring tuning for consistent fit and function.