KYB SR4538 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus for Mazda CX-9 Front Left

KYB Strut-Plus SR4538 is a front left suspension strut and coil spring assembly for the 2007-2015 Mazda CX-9. It is built to restore ride height, steering response, and suspension control with an OE-style fit for the front left corner.

Key Features

• OE-style replacement choice for Asian vehicles
• Includes a KYB Excel-G strut, stronger steel outer shell, and application-specific damping valves
• Pre-assembled for exact fitment and professional installation results
• Side-specific design with left and right part numbers as the vehicle manufacturer intended
• Engineered to support vehicles with electronic safety systems such as ESC and ABS
• Assembled in the USA
• Recipient of a 2018 industry award in the import aftermarket category

Product Details

The KYB Strut-Plus line combines a KYB OE-restoring strut with a high-carbon steel coil spring selected around vehicle attributes and corner weights. For Mazda CX-9 front suspension service, SR4538 helps return ride height to OE specifications while maintaining the handling balance expected from the original suspension design. This part cross-references Monroe Shocks & Struts (e.g., 172444, 182921) for the same application.

Common Problems This Assembly Addresses

• Front-end sag or uneven ride height on the driver side
• Loose, unstable, or delayed steering response
• Excessive body motion over bumps and dips
• Reduced suspension control after strut wear
• Front suspension service needs on a 2007-2015 Mazda CX-9, front left

Installation Notes

Fits 2007-2015 Mazda CX-9, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify side-specific placement before installation, and confirm alignment after the repair. KYB SR4538 is pre-assembled for professional results and exact fitment on the front left position.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered around OE ride and handling targets. SR4538 is assembled in the USA and built with application-specific damping and spring selection to support proper suspension performance on the Mazda CX-9.