KYB SR4405 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus Front Left Assembly

The KYB Strut-Plus SR4405 is a front left suspension strut and coil spring assembly for select Toyota Avalon models. It is built to restore ride height, steering response, and stability with an OE-style fit for the front left corner.

Compatible with 2006-2012 Toyota Avalon front left applications, this assembly is engineered for direct replacement service on vehicles that need a complete strut and spring solution.

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 import aftermarket industry award

Product Details

KYB Strut-Plus SR4405 combines an OE-restoring KYB strut with a high carbon steel coil spring selected around vehicle attributes and corner weights to help return ride height to OE specifications. As part of the KYB Strut-Plus line, this assembly focuses on restoring handling balance, steering pivot control, and overall suspension performance for the Toyota Avalon front left position. This part number, SR4405, is built for direct replacement service on 2006-2012 Toyota Avalon models, including 2009-2010 Avalon without the Sport Package and 2006 Avalon built from 1/2006.

Common Issues This Assembly Addresses

• Front-end sag or uneven ride height

• Worn strut damping that causes excess bounce or poor control

• Noisy or unstable suspension behavior at the front left corner

• Reduced steering precision during braking and cornering

• Suspension wear that can affect electronic stability and safety system performance

Installation Notes and Tips

Fits 2007-2012 Toyota Avalon, front left; fits 2009-2010 Toyota Avalon, front left, excluding Sport Package; fits 2006 Toyota Avalon, front left, from 1/2006. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify trim and build date before ordering, especially on 2006 and 2009-2010 Avalon applications. SR4405 is a pre-assembled strut-and-spring unit, which helps streamline installation compared with rebuilding components separately.