KYB 339281 Suspension Strut - Front Right

KYB Excel-G Front Right Strut for Lexus RX and Highlander

The KYB Excel-G 339281 is a front right suspension strut built to restore original ride control, steering response, and body stability. It is a direct OE-style replacement for select Lexus RX and Toyota Highlander applications, including 2010-2015 Lexus RX350, 2010-2015 Lexus RX450h, and 2010-2011 Toyota Highlander front right positions.

Key Features

• OE-style replacement for Asian SUVs and crossovers
• Restores designed handling, lane-change response, and stopping stability
• Nitrogen gas-charged twin-tube construction
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact and body motion
• Strong strut body and bracket design helps maintain alignment under load
• Internal rebound spring and R-stop design are included in the strut architecture
• Made in the USA

Excel-G Product Line Details

KYB Excel-G is the brand’s OEA-style replacement line, built on the same OE assembly lines used for original equipment supply. The design focuses on returning the suspension to factory-calibrated performance rather than changing ride character. Part number 339281 follows that approach for front right applications on the Lexus RX and Toyota Highlander.

Detailed Description

This KYB suspension strut is engineered for drivers who want the vehicle to respond the way it was originally tuned. The 339281 uses KYB’s twin-tube, nitrogen gas-charged design with OE-quality components and application-specific damping calibration. For Lexus RX350 and RX450h models, it helps restore the control and stability expected from the factory suspension. For Toyota Highlander front right applications, it supports proper tire contact and steering response when replacing a worn strut assembly. This part cross-references Monroe Shocks & Struts 72765 for the same application.

What This Strut Helps Address

• Excessive bouncing after bumps
• Loose or delayed steering response
• Nose dive during braking
• Body roll in turns and lane changes
• Uneven tire contact caused by worn suspension damping

Installation Notes and Tips

• Fits 2010-2015 Lexus RX350, front right, excluding air suspension.
• Fits 2010-2015 Lexus RX450h, front right, excluding air suspension.
• Fits 2011-2013 Toyota Highlander, front right; replace the suspension strut and coil spring assembly according to manufacturer instructions.
• Fits 2010 Toyota Highlander, front right, from 08/2010.
• Verify upper mount thread size 14x1.50 and confirm compressed and extended lengths before installation.

Quality Assurance

KYB supplies shocks and struts to new vehicle manufacturers, and Excel-G is built to OE-calibrated standards using quality components on KYB production lines. The strong strut body and bracket design helps reduce flex so alignment settings stay more consistent in service.