KYB SR4642 Suspension Strut and Coil Spring Assembly - Front Right

KYB Strut-Plus SR4642 Front Right Assembly

The KYB Strut-Plus SR4642 is a suspension strut and coil spring assembly for the front right position on select Lexus ES350 models. Built to restore ride height, handling response, and steering control, it combines an OE-restoring KYB strut with a high carbon steel coil spring matched to vehicle attributes and corner weights.

Key Features

• Part number SR4642 for front right suspension service
• Strut and coil spring assembly for the Lexus ES350
• OE-restoring KYB strut construction
• High carbon steel coil spring engineered to help restore ride height within OE specifications
• Boot included
• Compressed length: 15.01 in.
• Extended length: 21.34 in.
• Stroke length: 6.33 in.

Product Details

KYB Strut-Plus SR4642 is part of the KYB Strut-Plus line, a suspension solution focused on restoring original ride characteristics rather than changing them. As an original equipment supplier, KYB builds this assembly to address the strut’s role in supporting vehicle weight, setting ride height, serving as a steering pivot, and helping maintain stability. For Lexus ES350 owners, SR4642 provides a direct front right replacement for 2007-2008 Lexus ES350 and 2009 Lexus ES350 built through 7/2009. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Front-end sag or reduced ride height
• Worn strut performance that affects steering feel
• Excessive body motion or reduced stability
• Uneven ride quality at the front right corner
• Loss of OE-style handling response on Lexus ES350 models

Installation Notes and Tips

Install SR4642 at the front right position only on the listed Lexus ES350 applications. Verify build date for 2009 Lexus ES350 models, since fitment applies to vehicles built through 7/2009. Confirm suspension condition at the mounting points, inspect related wear components, and align the vehicle after installation. Because this is a strut and spring assembly, it is a direct suspension service part for front right replacement on compatible Lexus ES350 vehicles.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered to restore handling, control, and ride height using OE-oriented components and spring specifications.