Keep the rear suspension located and tracking true with the Mevotech Supreme Lateral Arm CMS401181. It installs as a rear upper lateral arm and serves as a direct-fit replacement for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer — see the Buyer's Guide tab for engine-level details.
Worn lateral-arm bushings or a bent arm can show up as clunking or knocking from the rear, uneven or accelerated tire wear, and alignment that won't hold. If a failed rear upper lateral arm is the cause, this replaces it. Because these arms work as a matched pair per axle, inspect the opposite side and consider replacing both together for balanced handling, and have the alignment set after installation.
Interchange: 524-743
524743 · 19356747 · HGS401181 · TC7307 · CA85686 · CA85686PR · CA5261 · 6L2Z5500B · RK643353 · C4GS401181 · GS401181 · 2607445 · 1181104 · 30034436 · 6CB40507 · X15CA0227 · CP5136
This part cross-references / interchanges with the following part numbers:
What vehicles does the CMS401181 fit?
It's a direct-fit lateral arm for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. Check the Buyer's Guide tab to confirm your exact vehicle.
What position is this lateral arm?
It is cataloged as a rear upper lateral arm, helping locate the rear wheel and maintain suspension geometry as the suspension travels.
What are signs this lateral arm may need replacing?
Common signs include clunking or knocking from the rear, uneven or accelerated tire wear, and alignment that won't stay set. Diagnose the cause before replacing.
Should I replace both sides at once?
These arms work as a matched pair per axle. Inspect the opposite side and consider replacing both together for balanced handling.
Is an alignment needed after installation?
Yes. Replacing a lateral arm affects rear suspension geometry, so have a wheel alignment performed after installation.
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.
