Help keep your front suspension pivoting smoothly with the Mevotech TTX suspension ball joint, part number TXMS40546, a front upper ball joint from Mevotech's TTX line, built for high-usage passenger and commercial vehicles, SUVs, fleets and working trucks. It fits many vehicles, among them the 2004-2020 Ford F-150, 2006-2021 Ford Expedition and 2007-2021 Lincoln Navigator, as a direct-fit replacement for the listed applications. See the Buyer's Guide tab for the full list and engine details.
A front upper ball joint is a pivot between the suspension and the steering knuckle. It lets the wheel move up and down with the suspension while it turns with the steering.
- Sintered bearings: Mevotech's patented sintered bearings are designed for longer-lasting performance.
- Hardware included: A part-specific slotted castle nut and an easy snap cotter pin secure the joint to the vehicle. A 90-degree SAE grease fitting is also included to make servicing simpler.
- Built for a secure fit: A thicker, stronger flange is designed to help prevent deformation during installation. Knurling gives a snugger fit between connecting points to help avoid distortion and corrosion.
- Nylok thread adhesive: The adhesive comes pre-applied to help keep fasteners secure and resist vibration.
A ball joint may need replacing if you notice clunking over bumps, loose or wandering steering, uneven tire wear or excess play at the wheel. Have the suspension inspected to confirm the cause before replacing parts.
Interchange: 19423807 · TC7869 · BJ85186 · FA500359 · GFA500359 · EL3Z3084A · EL3Z3084B · EL3Z3085A · EL3Z3085B · FL3Z3084A · FL3Z3084B · FL3Z3085A · FL3Z3085B · K500359 · K500422 · X15BJ0343
This part cross-references / interchanges with the following part numbers:
19423807, TC7869, BJ85186, FA500359, GFA500359, EL3Z3084A, EL3Z3084B, EL3Z3085A, EL3Z3085B, FL3Z3084A, FL3Z3084B, FL3Z3085A, FL3Z3085B, K500359, K500422, TXMS40546, X15BJ0343
