KYB 339757 Suspension Strut - Front Left

KYB Excel-G Front Left Strut for Toyota Yaris

KYB Excel-G 339757 is a front left suspension strut for 2016-2018 Toyota Yaris models. It is built to restore original ride control, stability, stopping response, lane-change feel, and handling without changing the vehicle’s designed performance.

The Excel-G line is KYB’s OE-style replacement range, produced on KYB OE assembly lines with OE-quality components and calibrated for original equipment performance. This part number, 339757, is a nitrogen gas-charged twin-tube strut with an internal rebound spring and a 12x1.25 upper mount type.

Key Features

• Fits 2016-2018 Toyota Yaris, front left
• KYB Excel-G OE-style replacement strut
• Nitrogen gas-charged, twin-tube design
• Internal rebound spring included in the design
• Compressed length: 15.43 in.
• Extended length: 19.29 in.
• Stroke length: 3.86 in.
• Upper mount type: 12x1.25
• Part number: 339757

Detailed Description

KYB 339757 is engineered for the front left position on the Toyota Yaris and is intended to restore the vehicle’s original suspension response. For drivers searching for a front left strut for 2016-2018 Toyota Yaris, this Excel-G unit matches the OE-style approach used by professional technicians who want factory-like ride control and handling characteristics.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. The KYB Excel-G line is a practical choice when the goal is to return the suspension to designed performance rather than alter ride height or damping feel. Part number 339757 is also referenced by Toyota OE numbers 485200D290, 485200D291, 485200D330, and 485200D331.

What It Helps Address

• Excessive bounce or weak damping at the front left corner
• Reduced stability during braking and lane changes
• Loose or unsettled steering feel on the Toyota Yaris
• Uneven ride control caused by worn suspension components
• Loss of original handling response on 2016-2018 Toyota Yaris models

Installation Notes and Tips

Verify fitment by year, make, model, and front left position before installation. Compare the compressed length, extended length, stroke length, and upper mount type to the original strut to confirm proper application. Inspect related suspension components, alignment settings, and mounting points during replacement to help ensure correct operation after installation.

Quality Assurance

KYB is a major OE supplier of shocks and struts, and the Excel-G line is built on the same KYB OE assembly lines using OE-quality components. That manufacturing approach supports consistent fitment and original-equipment-style performance for the Toyota Yaris application.