Replace a worn front lower arm with this Dorman control arm from Dorman OE Solutions, part number 521-321, which arrives with the ball joint and bushings already installed. It fits many vehicles, among them the 2005-2010 Chevrolet Cobalt, 2008-2010 Chevrolet HHR and 2007-2010 Pontiac G5. See the Buyer's Guide tab for the full list.
This Dorman suspension control arm and ball joint assembly is made for the front left lower position. It is a direct replacement for the original equipment on the listed applications.
- Direct replacement: takes the place of the original assembly on specific vehicle applications.
- Ready to install: each arm comes with a pre-installed ball joint and bushings, which saves time and labor.
- Tested design: went through an industry-leading evaluation process intended to deliver a smooth ride, directional stability and predictable dynamics.
- Protective finish: additional coatings provide rust and corrosion resistance.
The lower control arm connects the steering knuckle to the chassis. It lets the wheel travel up and down while holding it in position. Signs this part may need replacing include:
- clunking over bumps
- loose or wandering steering
- uneven tire wear
- noticeable play in the ball joint
Diagnose the cause before you order parts.
This listing is for the front left lower arm, and the right side is sold separately. Replacing both sides together is recommended for balanced handling. Have the wheel alignment checked after installation.
