SuperPro SPF4084K Front Lower Radius Arm Bushing Kit for 2001-2010 Lexus GS300, GS430, and SC430

Fits 2001-2010 Lexus GS300, GS430, and SC430.

The SuperPro SPF4084K Front Lower Radius Arm Bushing Kit is engineered to replace the soft, high-deflection factory rubber bushings that often lead to steering wander and irregular tire wear. As a critical link between the suspension and chassis, these radius arm bushings maintain wheel alignment under heavy braking and cornering loads. By upgrading to SuperPro’s proprietary polyurethane, you eliminate the "sloppy" steering feel common in the GS and SC chassis while maintaining excellent cabin isolation.

Designed and tested in Australia's demanding terrain, this kit is particularly effective for vehicles with larger wheel packages or upgraded brakes where the added leverage accelerates OE bushing failure. This kit provides a more precise steering response and restores the factory driving dynamics without the harshness often associated with inferior polyurethane materials.

• Reduces suspension deflection for sharper steering and better braking stability
• Proprietary polyurethane material offers superior durability over OEM rubber
• Designed to maintain factory levels of NVH (Noise, Vibration, and Harshness)
• Essential for vehicles with wider tires or performance modifications
• Manufacturer Part Number: SPF4084K

Vehicle Fitment