Keep your front suspension tight and your steering precise with the Mevotech Supreme Front Upper Ball Joint MS40554 — a direct-fit Ford F-150 ball joint that drops in for the 2021-2025 Ford F-150 and the 2022-2025 Ford F-150 Lightning. This upper suspension ball joint forms the pivoting connection between the front upper control arm and the steering knuckle, allowing the wheel to move through suspension travel and steering motion while helping locate the front wheel.
Superior toughness: patented sintered bearings deliver longer-lasting performance.
Simple to service: a 180-degree SAE grease fitting is included to make greasing easier.
A faster fit: a part-specific nylon locking nut is provided to speed up installation.
Resists corrosion: a protective surface treatment helps guard against rust build-up.
Signs the front upper ball joint may need replacing include clunking or knocking from the front end over bumps, loose or wandering steering, and uneven tire wear. Diagnose the cause before replacing, since these symptoms can have other sources. Mevotech Supreme parts are built for high-usage commercial and passenger vehicles, SUVs, fleets and working trucks, and are backed by rigorous in-house and third-party durability testing.
Interchange: 19534133 · MCF2539 · MCF2540 · ML3Z3084A · ML3Z3085A · NL3Z3084A · NL3Z3085A
This part cross-references / interchanges with the following part numbers:
19534133, MCF2539, MCF2540, ML3Z3084A, ML3Z3085A, NL3Z3084A, NL3Z3085A, MS40554
