Dorman - OE Solutions Suspension Control Arm and Ball Joint Assembly P/N:521-791
Replace a worn front left lower control arm in one step with the Dorman control arm P/N 521-031, supplied with the ball joint and bushings already installed. It fits many vehicles, among them the 2004-2007 Chevrolet Trailblazer, 2004-2007 GMC Envoy and 2004-2006 Chevrolet Trailblazer EXT. See the Buyer's Guide tab for the full list and engine details.
This Dorman suspension control arm and ball joint assembly went through Dorman's industry-leading evaluation process, which is designed to deliver a smooth ride, directional stability and predictable dynamics.
A lower control arm connects the wheel's steering knuckle to the vehicle's frame through its ball joint and bushings. It lets the wheel travel up and down while holding it in position. Clunking or knocking over bumps, loose or wandering steering, uneven tire wear, or play at the ball joint may be signs that this part needs replacing. Diagnose the cause before you replace anything. This part is cataloged for the front left lower position. Replacing both sides together is recommended, and a wheel alignment check after installation is advised.
Interchange: 102-7072 · 810-524443B · 622.66023 · 623.66023
1027072 · 810524443B · 62266023 · 62366023 · TC6381 · CA14453 · 15091391 · 19133555 · 25786779 · 25918964 · 8191335550 · 89060578 · RK620467 · 12CB50679 · FA3350 · GS50156 · CMS50156 · 2606356 · 12CB50106 · SK521031 · 1503047 · X07CJ7213
This part cross-references / interchanges with the following part numbers:
Will this work as a 2004-2007 Chevrolet Trailblazer control arm?
It is listed for the 2004-2007 Chevrolet Trailblazer and the 2004-2006 Chevrolet Trailblazer EXT in the front left lower position. Check the Buyer's Guide tab for your exact vehicle.
Does part 521-031 also fit the 2004-2007 GMC Envoy?
Yes, it is listed for the 2004-2007 GMC Envoy. The Buyer's Guide tab shows the other vehicles it fits.
What comes with this Dorman lower control arm?
The arm arrives with the ball joint and bushings pre-installed, which saves time and labor during the repair.
What are signs a lower control arm may need replacing?
Signs include clunking over bumps, loose or wandering steering, uneven tire wear, or play at the ball joint. Diagnose the cause first, since other suspension parts can produce similar symptoms.
Does this control arm have corrosion protection?
Yes. Dorman applies additional coatings to this arm for rust and corrosion resistance.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.