Tesla Model 3 and Model Y Front Upper Control Arm Ball Joint Replacement

Ball joints wear naturally over time from rough road conditions and the stresses of high-speed, high-grip cornering on both street and track. Play, noise, or a change in how the front end holds alignment are the usual signs. If you frequently move between street and track alignment settings, the joint sees more cycling. Replacing it keeps the arm delivering the strong, precise response it was built for.

If you run track days and swap between street and track alignment often, having a replacement joint ready means no downtime when one wears. The page calls this out directly: frequent alignment changes make a spare highly beneficial. Instead of waiting on a part when a joint finally goes, you keep the car available. It is cheap insurance for anyone who uses the FUCA adjustment regularly.

Servicing an aftermarket control arm with its own replacement joint does not automatically void your Tesla coverage. Under Magnuson-Moss, Tesla must show a part caused a specific failure to deny that claim, rather than citing the modification itself. Since this is a maintenance item for a part you already run, it changes nothing about that framework; keep your factory arms if you want a path back to stock.

It is the replacement pill, or ball joint, for the Unplugged Performance Model 3 and Model Y Front Upper Control Arm (FUCA) Set, Ultimate Edition. Ball joints are a wear item, and hard cornering or rough roads eventually wear them. This part restores your existing FUCA set to full performance without replacing the whole arm. It is sold per side, so a full axle needs two.

You select Model 3 (2017-2023 pre-refresh), Model 3 (late 2023 refresh), or Model Y at checkout, so all three are covered. It is designed exclusively for the UP FUCA Ultimate Edition arm, not for the factory control arm or another brand’s arm. If you do not already run our FUCA set, this piece will not do anything for you on its own; it is a service part for that specific arm.