Help your front suspension deliver a smooth, stable ride with this Dorman control arm, part number 521-371, a front left upper control arm with ball joint designed to directly replace the original assembly. It fits many vehicles, among them the 2003-2024 Toyota 4Runner, 2007-2014 Toyota FJ Cruiser and 2010-2023 Lexus GX460. See the Buyer's Guide tab for the full list.
Dorman puts this control arm and ball joint assembly through an industry-leading evaluation process aimed at a smooth ride, directional stability and predictable dynamics. The ball joint and bushings come already fitted, so the arm goes in as one piece.
- Trustworthy replacement: directly replaces the original assembly on the listed applications.
- Complete repair: the ball joint and bushings arrive pre-installed, saving time and labor.
- Quality engineering: underwent industry-leading testing intended to provide a smooth, stable and safe ride.
- Durably designed: additional coatings help resist rust and corrosion.
Position: front left upper. This listing is for one arm. The right-side arm is a separate part, and replacing both sides together is recommended for balanced handling.
Signs this arm may need replacing include clunking over bumps, loose or wandering steering, and uneven tire wear. If a worn ball joint or bushing in the original arm is the cause, this assembly replaces both at once. Diagnose the cause before replacing parts, and have the front end aligned after installation.
Interchange: 102-6325
1026325 · TC3324 · CA10300 · 3CB86056 · RK620064 · FA3190 · GS86114 · CMS86114 · 2606189 · 2607961 · SK620064 · 1525063 · JTC2499 · 4863060020 · 4863060040
This part cross-references / interchanges with the following part numbers:
102-6325, TC3324, CA10300, 3CB86056, RK620064, FA3190, GS86114, CMS86114, 2606189, 2607961, SK620064, 1525063, JTC2499, 4863060020, 4863060040
