KYB 339403 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for Sportage and Tucson

KYB Excel-G strut 339403 is an OE-style suspension strut built to restore original ride control, stability, braking response, lane-change behavior, and handling. It is designed for the front left position on select Kia Sportage and Hyundai Tucson models, with vehicle-specific damping calibrated for factory-like performance.

Key Features

• OE replacement choice for Asian SUVs and crossovers
• Restores designed control and handling on Kia Sportage and Hyundai Tucson applications
• Nitrogen gas-charged, twin-tube construction
• Triple-lip fluid seal helps reduce oil and gas leakage
• Hand-assembled, vehicle-specific damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket design helps minimize flex and maintain alignment
• Electronic safety systems rely on suspension performance that matches the vehicle manufacturer’s design
• Upper mount type: 12x1.25; compressed length 14.29 in., extended length 21.33 in., stroke length 7.04 in.

Product Details

KYB Excel-G is KYB’s Original Equipment for the Aftermarket line, built on the same OE assembly lines and with OE-quality components used in new vehicle production. This KYB 339403 front left suspension strut is engineered to return the suspension to factory-calibrated behavior rather than change the vehicle’s character. It is a direct-fit choice for drivers looking for a replacement strut for 2011-2016 Kia Sportage front left and 2010-2015 Hyundai Tucson front left applications.

This part cross-references Monroe Shocks & Struts 72723 for the same application.

What It Helps Address

• Excessive bouncing or poor rebound control
• Loose steering feel or delayed response
• Body roll during turns and lane changes
• Uneven tire contact caused by worn damping
• Reduced braking stability from weakened front suspension control

Installation Notes

Fits 2011-2016 Kia Sportage, front left. Fits 2010-2015 Hyundai Tucson, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. KYB recommends new strut mounts, part number SM5758, to reduce noise and vibration, and a KYB strut boot, part number SB116, to help protect the strut from dirt, debris, and salt.

Quality Assurance

KYB is a major OE supplier of shocks and struts, and Excel-G is manufactured on KYB OE assembly lines using OE-quality components. The design focus is restoring original suspension performance for the vehicle’s intended control and handling characteristics.