Mevotech Supreme Suspension Control Arm and Ball Joint Assembly P/N:CMS40122

Help restore tight, precise steering and a solid front end with the Mevotech Supreme control arm (CMS40122), a front left (driver's side) lower control arm and ball joint assembly. It's a direct-fit replacement for the 2003-2006 Ford Expedition and 2003-2006 Lincoln Navigator, so this Ford Expedition control arm swap goes right onto the listed applications.

The control arm locates the front wheel and pivots on its bushings, while the integrated ball joint allows the steering and suspension to move together through their travel. When the joint or bushings wear, you may notice clunking or knocking over bumps, wandering or loose steering, and uneven front tire wear.

• Longer ball joint life: extra surface treatment resists rust build-up for a longer-lasting ball joint.
• A faster fit: includes the part-specific nylon locking nut to speed up ball joint installation.
• Built for hard use: engineered in-house with application-specific upgrades for high-usage passenger vehicles, SUVs, fleets and working trucks.
• Rigorously tested: extensive in-house and third-party durability testing.

Premium materials are used across the components for longer part life. Sold individually as the front left lower unit; replacing the left and right sides together is often recommended for balanced handling.