KYB 3350057 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for Lexus ES and Toyota Avalon

The KYB Excel-G 3350057 is a front left suspension strut built to restore original ride control, stability, and steering response. It is a direct OE-style replacement for select Lexus ES and Toyota Avalon applications, including models that require a front left strut without Adaptive Variable Suspension.

Key Features

• OE-style replacement choice for Asian vehicles
• Restores designed control and handling for Lexus ES sedan applications
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Made in USA
• Supports proper operation of electronic safety systems by helping suspension, brakes, and tires work as engineered
• Strong strut body and bracket design helps minimize flex and maintain alignment

Product Details

KYB Excel-G is KYB’s OE replacement line, built on the same assembly lines and with the same quality components used for original equipment production. This nitrogen gas-charged, twin-tube suspension strut is calibrated to return the vehicle to its intended ride characteristics rather than change them. For drivers servicing a Lexus ES250, ES300h, ES350, or Toyota Avalon, the KYB 3350057 provides a direct front left strut solution for the listed applications.

This part cross-references Lexus and Toyota OE numbers for the same application, including 485208Z323 and 485028Z203.

Common Problems This Strut Can Address

• Excessive bouncing or poor damping at the front left corner
• Loose steering feel or delayed lane-change response
• Uneven tire contact caused by worn suspension control
• Noise or instability from a worn OE strut assembly
• Reduced ride quality and body control during braking or cornering

Installation Notes and Fitment

• Fits 2023-2025 Lexus ES250, front left, w/o Adaptive Variable Suspension; Excel-G
• Fits 2022-2025 Lexus ES300h, front left, w/o Adaptive Variable Suspension; Excel-G
• Fits 2022-2025 Lexus ES350, front left, Recommended OEM Replacement; Excel-G
• Fits 2022 Lexus ES250, front left, Except Adaptive Variable Suspension; Excel-G
• Fits 2022 Toyota Avalon, front left, To 07/2022; Excel-G
• Fits 2021 Lexus ES250, front left, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
• Fits 2019-2021 Lexus ES300h, front left, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
• Fits 2019-2021 Lexus ES350, front left, Recommended OEM Replacement; w/o Adaptive Suspension; Excel-G
• Fits 2019-2021 Lexus ES350, front left, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
• Fits 2019-2021 Toyota Avalon, front left, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G

Verify suspension configuration before ordering, especially on vehicles equipped with Adaptive Variable Suspension or Adaptive Suspension. For Lexus ES and Toyota Avalon service, follow the manufacturer’s instructions for strut and coil spring assembly replacement where noted.

Quality Assurance

KYB is a major OE supplier, and the Excel-G line is engineered to match original vehicle performance targets for ride control and handling. The 3350057 is manufactured in the USA and built with OE-quality components for consistent service on the listed Lexus and Toyota applications.