Mevotech Supreme Suspension Control Arm and Ball Joint Assembly P/N:CMS30121
Keep your front suspension tight and your steering precise with the Mevotech Supreme control arm and ball joint assembly (CMS401150). This front right lower unit locates the wheel and lets the suspension pivot, while its integrated ball joint connects the arm to the steering knuckle. It drops in as a direct-fit replacement for the 2012-2018 Ford Focus — including the Focus ST — and the 2014-2023 Ford Transit Connect; see the Buyer's Guide tab for engine-level fitment.
Mevotech Supreme parts are engineered in-house with application-specific upgrades and are built for high-usage commercial and passenger vehicles, SUVs, fleets and working trucks, while Labor Saver designs and hardware help make installation faster. Each unit is backed by extensive in-house and third-party durability testing. Signs the original may need replacing include clunking over bumps, loose or wandering steering, uneven tire wear, or play at the ball joint — diagnose the cause first, and if a worn control arm or ball joint is at fault, this assembly replaces it.
What is this control arm and ball joint assembly?
It's the front right lower suspension control arm with an integrated ball joint (CMS401150) that locates the wheel, lets the suspension pivot, and connects the arm to the steering knuckle on the listed Ford applications.
Does this fit a 2012 Ford Focus or Focus ST?
Yes. It's a direct-fit replacement for the 2012-2018 Ford Focus, including the Focus ST, and the 2014-2023 Ford Transit Connect. Check the Buyer's Guide tab to confirm your engine.
What position does CMS401150 cover?
It is the front right (passenger-side) lower control arm and ball joint assembly for the listed Ford Focus and Transit Connect applications.
Does it include a grease fitting?
Yes — it comes with a 90 degree SAE grease fitting so the ball joint can be lubricated easily during service.
Do I need to replace both sides?
This listing is for one front right lower assembly. Replacing the matching left side at the same time is good practice for balanced handling, but it isn't required.
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.