Keep the rear suspension located and quiet with the Mevotech Supreme Lateral Arm CMS861050, a direct-fit replacement for the rear lower forward position on a wide range of Lexus GS and IS models. It bolts in for the 1998-2006 GS300, 1998-2000 GS400, 2001-2005 IS300, 2004-2007 GS430, 2006-2013 IS250, 2006-2013 IS350, 2007-2011 GS350, 2007-2011 GS450H, 2008-2011 GS460, and 2008-2010 IS F — see the Buyer's Guide tab for the full engine-level fitment.
This lateral arm connects the rear knuckle to the chassis, helping hold suspension geometry and controlling lateral movement of the wheel as the vehicle rolls and corners.
Signs this part may need replacing: clunking or knocking from the rear suspension over bumps, loose or wandering rear-end feel, uneven rear tire wear, or cracked/worn bushings. Diagnose the cause before replacing. Sold individually; if both sides show wear, order two and replace them as a pair for balanced handling.
What position does this lateral arm fit?
It is cataloged for the rear lower forward position on the listed Lexus GS and IS models. Confirm your vehicle in the Buyer's Guide tab before ordering.
Which vehicles does the CMS861050 fit?
It fits the 1998-2006 GS300, 1998-2000 GS400, 2001-2005 IS300, 2004-2007 GS430, 2006-2013 IS250/IS350, 2007-2011 GS350/GS450H, 2008-2011 GS460, and 2008-2010 IS F. See the Buyer's Guide for details.
What does a lateral arm do?
It links the rear knuckle to the chassis, helping maintain suspension geometry and control lateral movement of the wheel while cornering and driving over bumps.
How do I know if it needs replacing?
Common signs include clunking over bumps, a loose or wandering rear feel, uneven rear tire wear, or cracked and worn bushings. Have the cause diagnosed before replacing.
Do I need to buy two?
This listing is for one arm, sold individually. If both sides are worn, order two and replace them as a pair for balanced, even handling.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
