Tackle a worn F-150 control arm in one step with Dorman's 520-391 control arm with ball joint, a front left lower direct replacement for the 2004-2008 Ford F-150, 2004-2008 Ford Lobo and 2006-2008 Lincoln Mark LT. Engine-specific details are listed in the "Vehicles it fits" section.
This Dorman lower control arm directly replaces the original equipment on the listed applications. Dorman puts it through an industry-leading evaluation process designed to deliver a smooth ride, directional stability and predictable dynamics.
- Trustworthy replacement: directly replaces the original assembly on specific vehicle applications.
- Complete repair: arrives with the ball joint and bushings 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 add rust and corrosion resistance.
The lower control arm connects the steering knuckle to the vehicle's frame. It pivots on its bushings so the wheel can travel up and down, while the ball joint lets the knuckle turn for steering. Signs this part may need replacing include clunking over bumps, loose or wandering steering, uneven tire wear, cracked bushings or a torn ball joint boot. Have the suspension inspected to confirm the cause before replacing parts, and have the wheel alignment checked after installation.
Frequently Asked Questions
Will this fit as a control arm on my 2004-2008 Ford F-150?
It is a direct replacement for the front left lower position on the 2004-2008 Ford F-150. See the "Vehicles it fits" section for every listed vehicle.
What comes with the Dorman suspension control arm and ball joint assembly?
Each unit arrives with the ball joint and bushings pre-installed, so you don't have to source or install them separately.
Which position does part 520-391 replace?
It is the front left lower control arm with ball joint for the listed applications.
What are signs a control arm with ball joint may need replacing?
Common signs include clunking over bumps, loose or wandering steering, uneven tire wear, and cracked bushings or a torn ball joint boot. Have the suspension inspected to confirm the cause.
Does the Dorman control arm have corrosion protection?
Yes. Additional coatings provide rust and corrosion resistance.
