KYB 341266 Suspension Strut - Front

KYB Excel-G Front Strut for Lexus GS and SC

The KYB Excel-G 341266 is a front suspension strut built to restore original ride control, stability, and steering response on select Lexus applications. It uses KYB’s Excel-G tuning to return the vehicle’s designed handling balance without changing the factory feel.

Compatible with 1998-2005 Lexus GS300, 2001-2005 Lexus GS430, 2002-2005 Lexus SC430, and 1998-2000 Lexus GS400 in the front position.

Key Features

• Nitrogen gas-charged, twin-tube suspension strut design
• Vehicle-specific damping calibration for factory-style ride control
• Triple-lip fluid seal to reduce oil and gas leakage
• Hand-assembled internal damping valves for consistent steering response and body control
• Strong strut body and bracket construction to help maintain alignment under load
• OE-style replacement choice for Asian vehicles
• Cross-reference: Monroe Shocks & Struts 71133

Product Details

KYB Excel-G is built on the same OE assembly lines used for KYB original equipment products and is calibrated to restore the vehicle’s original performance characteristics. For Lexus GS300, GS430, GS400, and SC430 front suspension service, part number 341266 is engineered to manage tire contact, braking stability, lane-change response, and overall handling in the way the chassis was originally designed. The strut measures 15.98 inches compressed, 20.16 inches extended, with 4.17 inches of stroke, and uses an E2 lower mount and S1 upper mount configuration.

Common Issues This Strut Can Address

• Excessive front-end bounce or oscillation
• Loose or delayed steering response
• Nose dive during braking
• Reduced stability during lane changes and cornering
• Uneven tire contact caused by worn suspension damping

Installation Notes and Tips

Install on the front position only for the listed Lexus applications. KYB recommends replacing the strut mount, part number SM5205, to reduce noise and vibration, and using strut boot SB103 to help protect the new strut from dirt, debris, and road salt. On vehicles that require it, replace the suspension strut and coil spring assembly according to the manufacturer’s instructions.

Quality Assurance

KYB is a major OE supplier, and Excel-G is produced using OE-quality components with application-specific damping calibration. The design focuses on restoring factory ride control and maintaining the suspension performance expected by the vehicle manufacturer.