KYB SR4634 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus SR4634 Front Left Assembly

The KYB Strut-Plus SR4634 is a front left suspension strut and coil spring assembly for select INFINITI applications. It combines an OE-restoring KYB strut with a high carbon steel coil spring to help return ride height, handling response, and steering control to factory specifications.

Compatible with 2007-2015 INFINITI G35, G37, G25, and Q40 front left positions, this assembly is built for direct replacement service on vehicles that need a complete strut-and-spring unit. The KYB Strut-Plus line focuses on restoring original ride characteristics with components matched to vehicle weight and corner loads.

Key Features

• Part number SR4634 front left suspension strut and coil spring assembly
• OE-restoring KYB strut for factory-style ride and control
• High carbon steel coil spring engineered around vehicle attributes and corner weights
• Helps restore ride height within OE specifications
• Boot included for added protection
• Internal rebound spring included
• Compressed length: 11.41 in.
• Extended length: 13.24 in.
• Stroke length: 1.83 in.

About the Strut-Plus Line

KYB Strut-Plus assemblies are built as complete front suspension units for drivers who want a direct OE-style replacement instead of assembling separate strut and spring components. As an original equipment supplier, KYB applies OE-based engineering to help maintain the handling balance, steering feel, and ride height expected on INFINITI G35, G37, G25, and Q40 models. The SR4634 follows that approach with a matched spring and strut package for the front left corner.

What It Helps Address

• Front-end sag or reduced ride height
• Excessive bounce or poor damping control
• Loose or unstable steering response
• Uneven handling at the front left corner
• Worn strut and spring assembly replacement needs

Installation Notes

Fits 2007-2008 INFINITI G35, front left, w/o 4 Wheel Steering. Fits 2009-2013 INFINITI G37, front left, w/o 4 Wheel Steering. Fits 2011-2012 INFINITI G25, front left. Fits 2015 INFINITI Q40, front left. Verify vehicle configuration and position before ordering, especially on G35 and G37 models with steering system differences. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

KYB is an original equipment supplier, and the SR4634 is engineered to restore OE-level ride height, handling, and control characteristics using a strut and spring assembly matched to the vehicle application.