KYB SR4809 Suspension Strut and Coil Spring Assembly - Front Right

KYB Strut-Plus SR4809 Front Right Assembly

The KYB Strut-Plus SR4809 is a front right suspension strut and coil spring assembly for select INFINITI applications. Built to restore ride height, steering response, and vehicle stability, it combines an OE-restoring KYB strut with a high carbon steel coil spring matched to vehicle corner weights.

Compatible with 2014-2015 INFINITI Q60 front right and 2008-2013 INFINITI G37 front right, this KYB Strut-Plus assembly is a direct-fit option for drivers replacing a worn front suspension unit on the passenger side.

Key Features

• Part number SR4809
• Front right suspension strut and coil spring assembly
• OE-restoring KYB strut construction
• High carbon steel coil spring engineered around vehicle attributes and corner weights
• Boot included
• Compressed length: 17.12 in.
• Extended length: 21.25 in.
• Stroke length: 4.13 in.

Product Details

KYB Strut-Plus is part of KYB’s Strut-Plus line, a suspension solution focused on restoring factory ride height and handling balance after strut wear. The SR4809 uses a matched strut and spring design to help return the front suspension to OE specifications, which is important on vehicles where the strut also serves as a steering pivot and supports overall chassis control. For 2014-2015 INFINITI Q60 and 2008-2013 INFINITI G37 front right applications, this assembly supports consistent suspension geometry and predictable road feel.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Front-end sagging from a fatigued coil spring
• Excessive bounce or reduced damping from a worn strut
• Uneven ride height on the front right corner
• Loose or unstable steering feel caused by suspension wear
• Noise or harshness from a deteriorated strut assembly

Installation Notes and Tips

Verify vehicle fitment by year, model, and front right position before installation. Because this is a complete strut and spring assembly, it is typically used as a replacement for the original front suspension unit rather than rebuilding the existing components. After installation, a professional wheel alignment is recommended to confirm suspension geometry and steering wheel center.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered to restore handling and control characteristics while helping return ride height to OE specifications. The SR4809 is built for the confirmed INFINITI Q60 and G37 front right applications listed above.