Keep your Mustang's front suspension tight and precise with the Mevotech Supreme control arm and ball joint assembly, MPN CMS401221. This front right (passenger-side) lower forward unit installs as a direct-fit replacement for the 2015-2023 Ford Mustang, combining the arm and its ball joint in one Labor Saver design that speeds installation. Mevotech Supreme parts are engineered in-house with application-specific upgrades aimed at increased durability for high-usage passenger vehicles, fleets and working trucks.
The front lower control arm locates the wheel and, through its integrated ball joint, lets the steering knuckle pivot and travel with the suspension. Worn bushings or a failing ball joint can bring on clunking over the front end, uneven front tire wear, or loose, wandering steering; if a worn front lower arm is the cause, this assembly replaces both the arm and the ball joint at once. Sold individually as a single unit.
Interchange: 526-266
526266 · 19390859 · TC7928 · CB86164 · CB86164PR · CA14790 · FR3Z3078D · MCS190148 · RK623464 · 2608618 · 30034788 · 5CB40610 · X15CJ7082
This part cross-references / interchanges with the following part numbers:
Does this fit my Mustang?
Yes — CMS401221 is a direct-fit replacement front right lower forward control arm and ball joint for the 2015-2023 Ford Mustang. Check the Buyer's Guide tab for your exact engine and trim.
Which corner of the car is this control arm for?
It's the front right (passenger-side) lower forward position. For the opposite side, order the matching left-side arm.
Does it include the ball joint and installation hardware?
Yes — the ball joint is integrated, and Mevotech provides a 180-degree SAE grease fitting plus a part-specific nylon locking nut to speed installation.
Is this a lower control arm Mustang owners can bolt right in?
Yes, it's a front lower control arm for the Mustang that pairs the arm and its ball joint in one forged steel assembly for a direct-fit replacement on the listed years.
What are the signs I need a new control arm?
Clunking over the front end, uneven front tire wear, or loose, wandering steering can point to worn bushings or a failing ball joint. Diagnose the cause before replacing.
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.
