Keep your front suspension tight and your steering precise with the Mevotech Supreme Front Upper Ball Joint MS40554 — a direct-fit 2021-2025 Ford F-150 ball joint that also drops in for 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
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
19534133, MCF2539, MCF2540, ML3Z3084A, ML3Z3085A, NL3Z3084A, NL3Z3085A, MS40554
Frequently Asked Questions
What vehicles does the Mevotech Supreme MS40554 ball joint fit?
It's a direct-fit front upper ball joint for the 2021-2025 Ford F-150 and the 2022-2025 Ford F-150 Lightning. Check the "Vehicles it fits" section to confirm the fit for your vehicle.
Is this a front or rear ball joint?
It's a front upper ball joint, connecting the front upper control arm to the steering knuckle on the listed applications.
Does the MS40554 come with a grease fitting and nut?
Yes. It includes a 180-degree SAE grease fitting for easier servicing and a part-specific nylon locking nut to speed up installation.
What are the signs of a worn ball joint?
Common signs include clunking over bumps, loose or wandering steering, and uneven tire wear. Have the cause diagnosed, as these symptoms can come from other suspension parts.
What makes the sintered bearings a benefit?
Mevotech Supreme uses patented sintered bearings that are designed to deliver longer-lasting performance in this ball joint.
