KYB 339213 Suspension Strut - Rear Left

KYB Excel-G Rear Left Strut for Lexus RX400h

KYB Excel-G part number 339213 is a rear left suspension strut for the 2007-2008 Lexus RX400h. It is built to restore original ride control, steering response, and body stability for drivers replacing a worn OE-style strut.

The Excel-G line is KYB’s OE-focused product range, built on the same assembly lines and with the same quality components used for original equipment applications. For the Lexus RX400h, this suspension strut is calibrated to return factory-style damping rather than change the vehicle’s handling character.

Key Features

• OE-style replacement for Asian SUVs and crossovers
• Restores designed control and handling on the Lexus RX400h
• 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, steering response, and body movement
• Strong strut body and bracket design helps minimize flex and maintain alignment
• R-stop design for controlled rebound performance
• Part number 339213

Product Details

KYB 339213 is engineered as a suspension strut for rear left applications on the Lexus RX400h. It is intended to restore the vehicle’s original ride quality, lane-change response, and braking stability by matching OE-style damping characteristics. This part cross-references Lexus 4854049425 for the same application.

As part of the Excel-G line, this strut reflects KYB’s OE supplier background and focus on factory-correct performance. The design uses in-house calibrated valves and a durable twin-tube layout to support consistent suspension control under everyday driving conditions.

What This Strut Helps Address

• Excessive bouncing after bumps
• Loose or delayed steering response
• Nose dive, squat, or body roll during braking and cornering
• Uneven tire contact caused by worn damping
• Noise or vibration from a fatigued rear suspension strut

Installation Notes and Tips

Fits 2008 Lexus RX400h, rear left. Fits 2007 Lexus RX400h, rear left. For the 2008 Lexus RX400h, replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. For the 2007 Lexus RX400h, this application is noted from 5/2007.

KYB recommends replacing the strut mount, part number SM5492, to reduce noise and vibration. A KYB strut boot, part number SB104, can help protect the new strut from dirt, debris, and road salt.

Quality Assurance

KYB manufactures Excel-G components on OE assembly lines using OE-quality parts and calibration standards. The brand’s OE supplier experience is reflected in the design focus of part number 339213, which is built to restore original suspension performance on the Lexus RX400h.