KYB 334384 Suspension Strut - Rear Right

KYB Excel-G Rear Right Strut for RX400h and Highlander

KYB Excel-G suspension strut 334384 is an OE-style replacement built to restore original ride control, stability, and steering response. It is a nitrogen gas-charged, twin-tube rear right strut for select Lexus RX400h and Toyota Highlander applications, including 2004-2007 Toyota Highlander rear right and 2006-2007 Lexus RX400h rear right.

Key Features

• Designed as an original-equipment replacement choice for Asian SUVs and crossovers
• Restores designed handling, lane-change response, and body control
• Triple-lip fluid seal helps reduce the chance of oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact and steering response
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Made in USA
• Electronic safety systems depend on suspension performance that matches factory intent
• Upper mount thread size: 14x1.50
• Compressed length: 17.32 in.; extended length: 24.21 in.; stroke length: 6.89 in.

Product Details

The KYB Excel-G line is engineered to return the vehicle to its original damping characteristics rather than change ride feel. For RX400h and Highlander rear suspension service, part number 334384 uses OE-quality components and KYB’s OE assembly-line manufacturing approach to deliver consistent control under everyday driving conditions. This part cross-references Monroe Shocks & Struts 72213 for the same application.

Common Problems This Strut Can Address

• Excessive bouncing after bumps or dips
• Reduced rear suspension control during lane changes
• Uneven tire contact caused by worn damping performance
• Noise or vibration from a fatigued rear strut assembly
• Loss of stability when braking or cornering

Installation Notes and Tips

Fits 2004-2007 Toyota Highlander, rear right. Fits 2006-2007 Lexus RX400h, rear right. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. KYB recommends installing new strut mounts, part number SM5175, to reduce noise and vibration, and a KYB strut boot, part number SB101, to help protect the strut from dirt, debris, and salt.

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. Part number 334384 is calibrated to restore factory-designed performance for the rear suspension on select Lexus RX400h and Toyota Highlander models.