SuperPro 2001 Lexus GS300 Base Front Lower Radius Arm - w/ Caster Bushing Kit

Control arm bushings form the vital pivot and link between all core suspension components. SuperPro's 'offset' bushing options introduce additional positive caster into the front end suspension geometry. With a small but significant change the additional caster delivers several benefits: 1) Improved straight-line stability and tracking; your vehicle will track straight and return to center with less driver input. 2) Dynamic camber gain with steering angle “ the more your turn the wheel with additional caster the more both wheels will ˜camber' into the turn putting more of the tire's contact patch on the road as the suspension loads up in the corner and helping to resist the tire ˜rolling over' onto the shoulder and compromising grip. 3) Enhanced steering weight and feel; the small caster change will weight up the steering slightly as you come off-center and the improved cornering grip delivers greater feel for the handling limit through the wheel. The caster offset bushings deliver only benefits with no negative impact on tire wear, comfort or unwanted handling behavior. SuperPro's polyurethane bushings are the culmination of nearly 5 decades of suspension expertise and development in Australia's harshest terrain. Designed with durability as a paramount feature we also bring ride and passenger comfort to the forefront of our development. Our designs and material compositions retain OEM levels of noise and harshness isolation while delivering superior performance and road manners in all conditions.

Restore precise front suspension response with the SuperPro SPF4086K Front Lower Radius Arm Caster Bushing Kit. Designed for select 2001-2005 Lexus GS300 and GS430 applications, this polyurethane bushing kit replaces original equipment-style components with a durable design engineered to improve handling, steering feel, and long-term suspension performance.

SuperPro offset bushings add positive caster to the front suspension geometry, helping improve straight-line stability and tracking. The vehicle can return to center more naturally with less driver correction, while the added caster also promotes dynamic camber gain as the steering angle increases. During cornering, this helps keep more of the tire contact patch engaged with the road and resists excessive tire roll onto the shoulder under suspension load.

The SPF4086K kit also enhances steering weight and feedback without compromising normal ride comfort or creating unwanted handling behavior. SuperPro polyurethane suspension bushings are developed from decades of suspension expertise and are formulated to provide durable performance in demanding driving conditions while maintaining noise and harshness isolation comparable to original equipment components. The result is improved road manners and a more controlled driving experience for street and performance applications.

Fitment: 2001-2005 Lexus GS300 and GS430 models, including Base applications where applicable.
Brand: SuperPro
Part Number: SPF4086K
Application: Front lower radius arm with caster bushing kit
Material: High-quality polyurethane designed for durability, control, and comfort

Features:

• Offset caster bushings add positive caster to the front suspension geometry
• Improves straight-line stability, tracking, and steering return
• Promotes dynamic camber gain during cornering
• Helps maintain tire contact with the road under suspension load
• Enhances steering weight and driver feedback
• Designed to improve handling without negatively affecting tire wear or ride comfort
• Durable polyurethane construction engineered for long-term suspension performance
• Fits select 2001-2005 Lexus GS300 and GS430 models

Fitment:
Lexus GS300 Base 2001
Lexus GS300 Base 2002
Lexus GS300 Base 2003
Lexus GS300 Base 2004
Lexus GS300 Base 2005
Lexus GS430 Base 2001
Lexus GS430 Base 2002
Lexus GS430 Base 2003
Lexus GS430 Base 2004
Lexus GS430 Base 2005
Lexus SC430 Base 2002
Lexus SC430 Base 2003
Lexus SC430 Base 2004
Lexus SC430 Base 2005
Lexus SC430 Base 2006
Lexus SC430 Base 2007
Lexus SC430 Base 2008
Lexus SC430 Base 2009
Lexus SC430 Base 2010