SuperPro SPF3508K Rear Lower Inner Control Arm Bushing Kit for Lexus IS250 IS350

Vehicle Fitment

• 2006-2013 Lexus IS250 (GSE20 Platform, RWD, 2.5L V6)
• 2010-2013 Lexus IS250 C Convertible (GSE20 Platform, RWD, 2.5L V6)
• 2006-2013 Lexus IS350 (GSE21 Platform, RWD, 3.5L V6)
• 2010-2013 Lexus IS350 C Convertible (GSE21 Platform, RWD, 3.5L V6)
• 2008-2014 Lexus IS F (USE20 Platform, RWD, 5.0L V8)

Fitment Notes

• Fits the inner position of the rear lower control arm only
• RWD variants only; AWD IS250/IS350 models use a different rear suspension geometry
• Rear wheel alignment required after installation

Features

• Direct OEM-equivalent replacement - restores correct rear lower control arm geometry and maintains proper rear camber and toe angles
• Made from SuperPro's engineering-grade polyurethane, offering far greater durability than factory rubber
• Eliminates deflection and movement in the rear lower control arm that leads to dynamic alignment changes under load
• Reduces uneven and accelerated rear tire wear caused by bushing flex during cornering and braking
• Resistant to oils, coolants, heat, and road chemicals - will not degrade or crack like rubber
• Backed by SuperPro's Lifetime Warranty covering street, track, and motorsport applications
• Designed and manufactured in Australia with 40+ years of suspension expertise

Specifications

• Position: Rear Lower Control Arm - Inner Bushing
• Type: Standard Replacement
• Material: Engineering-grade polyurethane
• Drivetrain: RWD only, as listed
• Warranty: Lifetime

Included Components

• 4x Polyurethane Bushings (2 sets - left and right sides)

Product Description

The SuperPro SPF3508K is a rear lower control arm inner bushing kit designed for the Lexus IS250, IS350, and IS F on the GSE20/USE20 platform. The rear lower control arm is a critical link in this multi-link rear suspension, and the inner bushing at this location plays a direct role in maintaining proper rear camber and toe geometry. As the OEM rubber bushings wear, the arm deflects under braking and cornering loads - causing dynamic alignment shifts, inconsistent rear-end behavior, and premature tire wear on the inner edges.

SuperPro's polyurethane replacement eliminates this deflection, providing a firmer and more predictable connection between the control arm and the subframe. The upgrade is particularly noticeable on cars that have been lowered or driven hard on track, where bushing compliance is most pronounced. A rear wheel alignment is required following installation to restore correct geometry. The kit covers both left and right sides and is backed by SuperPro's Lifetime Warranty with no exclusions for track or motorsport use.