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Restore Precise Front Suspension Geometry Across the Lexus GS, IS, and RC Lineup
The front lower control arm front bushing on Lexus GS, IS, and RC platform cars wears over time, letting the arm shift out of its designed geometry and changing wheel alignment under load. The SuperPro SPF3492K polyurethane bushing restores the correct pivot point, holding alignment steady and improving steering precision and tire wear consistency.
Key Features
- SPF3492K polyurethane bushing replaces the worn front lower control arm front bushing
- Maintains correct front suspension geometry under acceleration, braking, and cornering loads
- Reduces alignment drift that causes uneven tire wear
- Improves steering precision and on-center feel
- Polyurethane construction resists the compression set that leads to rubber bushing failure
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2006 | Lexus | GS300 | |
| 2007-2011 | Lexus | GS350 | |
| 2006-2007 | Lexus | GS430 | |
| 2007-2011 | Lexus | GS450h | |
| 2008-2011 | Lexus | GS460 | |
| 2008-2014 | Lexus | IS F | |
| 2016-2017 | Lexus | IS200t | F Sport |
| 2006-2015 | Lexus | IS250 | |
| 2014-2015 | Lexus | IS250 | F Sport |
| 2010-2015 | Lexus | IS250 | C |
| 2006-2015 | Lexus | IS350 | |
| 2014-2015 | Lexus | IS350 | F Sport |
| 2010-2015 | Lexus | IS350 | C |
| 2015-2022 | Lexus | RC F | |
| 2016-2017 | Lexus | RC200t | F Sport |
| 2016-2022 | Lexus | RC300 | F Sport |
| 2015-2022 | Lexus | RC350 | F Sport |
Specifications
| Detail | Value |
|---|---|
| MPN | SPF3492K |
| Brand | SuperPro |
| Position | Front lower control arm, front bushing |
| Material | Polyurethane |
| Alignment Required | Yes, after installation |
| Warranty | Lifetime warranty on SuperPro polyurethane bushings |
| UPC | Not published by manufacturer |
What's Included
- Front lower control arm front bushing set
About SuperPro
SuperPro has manufactured performance polyurethane suspension bushings in Australia for over 40 years, engineering control arm bushing kits that restore factory-correct geometry across the Lexus GS, IS, and RC platform vehicles.
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FAQ
What is the SPF3492K?The SPF3492K is a SuperPro polyurethane bushing that replaces the front lower control arm front bushing on Lexus GS, IS, and RC platform vehicles including GS300 through GS460, IS250, IS350, IS F, and RC200t through RC F models.
Which Lexus models does this bushing fit?This bushing fits the GS300, GS350, GS430, GS450h, and GS460 sedans, the IS250, IS350, IS200t, and IS F sedans, and the RC200t, RC300, RC350, and RC F coupes across the year ranges listed above.
What are the symptoms of a worn front lower control arm bushing?Common symptoms include uneven tire wear, a wandering or vague steering feel, and alignment settings that drift out of specification.
Do I need an alignment after installing this bushing?Yes, a wheel alignment is required after installation to restore proper camber and toe settings.
Is this the front or rear bushing on the control arm?This is the front bushing position on the front lower control arm. A separate SuperPro kit covers the rear bushing position on the same arm.
Does this kit include the control arm itself?No, this kit includes only the replacement polyurethane bushing, not the control arm.
Is this bushing covered under warranty?Yes, SuperPro backs this bushing with a lifetime warranty to the original purchaser.
Do I need a press to install this bushing?Yes, pressing the old bushing out and the new one in typically requires a hydraulic press or a suitable bushing removal and installation tool.
Install Instructions
- Raise and safely support the front of the vehicle
- Remove the front lower control arm from the vehicle
- Press out the worn factory front bushing from the control arm
- Press in the new SuperPro polyurethane bushing
- Reinstall the control arm and torque all fasteners to factory specification
- Lower the vehicle and perform a wheel alignment
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