KYB SR4394 Suspension Strut and Coil Spring Assembly - Front Right

KYB Strut-Plus Front Right Assembly

The KYB Strut-Plus SR4394 is a front right suspension strut and coil spring assembly for select Lexus ES models. Built as a pre-assembled OE-style replacement, it is engineered to restore ride height, steering response, and vehicle control on the front right corner.

For 2013-2018 Lexus ES300h and 2013-2018 Lexus ES350 applications, this assembly combines KYB damping technology with a vehicle-specific coil spring and side-specific components for a direct-fit repair.

Key Features

• OE-style replacement choice for Asian vehicles
• Includes a KYB Excel-G strut with application-specific damping valves
• Uses a stronger steel outer shell for added structural support
• 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 help vehicles equipped with ESC, ABS, and related electronic safety systems
• Recipient of a 2018 industry award in the import aftermarket category

Product Details

KYB Strut-Plus SR4394 is part of the KYB Strut-Plus line, which pairs an OE-restoring KYB strut with a high-carbon steel coil spring selected around vehicle attributes and corner weights. The goal is to return the front right ride height and suspension behavior to OE specifications while maintaining the handling characteristics expected from the Lexus ES platform. This part number, SR4394, is built for direct replacement on the front right side of compatible Lexus ES300h and Lexus ES350 models.

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

What It Helps Address

• Front-end sag or uneven ride height
• Excessive bounce, float, or reduced damping control
• Noisy or worn strut and spring assembly replacement needs
• Steering feel changes caused by worn suspension components
• Restoration of front right suspension geometry after wear

Installation Notes

• Fits 2013-2018 Lexus ES300h, front right.
• Fits 2013-2018 Lexus ES350, front right.
• Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions.
• Confirm side-specific placement before installation; this assembly is for the front right position only.
• After installation, a professional alignment is recommended to verify suspension geometry and steering wheel center.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is engineered around OE fit, ride height, and handling targets. The SR4394 is built to support consistent suspension performance on the Lexus ES platform while maintaining the vehicle’s intended front right configuration.