Help bring back a smooth, stable ride and steady steering with the Dorman control arm, part number 521-976. This front right upper arm arrives with its ball joint and bushings already installed. It fits many Chevrolet and GMC models, among them the 1999-2000 Chevrolet Silverado 2500, the 2003-2025 Chevrolet Express 2500 and the 2003-2025 Chevrolet Express 3500. See the "Vehicles it fits" section for the full vehicle list and engine details.
This Dorman suspension control arm and ball joint assembly is designed as a direct replacement for the original assembly on specific vehicle applications. It links the steering knuckle to the chassis so the wheel can travel with the suspension while holding its position. Dorman puts it through an industry-leading evaluation process aimed at a smooth ride, directional stability and predictable dynamics.
- Trustworthy replacement: Built to take the place of the original assembly on the listed applications.
- Complete repair: The ball joint and bushings come pre-installed, saving time and labor.
- Quality engineering: Put through industry-leading testing, with a smooth, stable and safe ride as the goal.
- Durably designed: Additional coatings help it resist rust and corrosion.
Signs this part may need replacing: clunking or knocking over bumps, loose or wandering steering, uneven tire wear, or a worn ball joint or cracked bushings found during inspection. Diagnose the cause first. If the original upper arm is at fault, this assembly replaces it.
Position: Front right upper.
Interchange: 810-96741B · 623.66002
81096741B · 62366002 · TC6363 · CA8729 · 15049880 · 23428569 · 25793553 · CK623015 · RK623199 · RK641506 · GS50189 · CMS50189 · 2606363 · 2606363M · 4CB50132 · SK521976 · 1503046 · X07CJ0147 · JTC2604
This part cross-references / interchanges with the following part numbers:
810-96741B, 623.66002, TC6363, CA8729, 15049880, 23428569, 25793553, CK623015, RK623199, RK641506, GS50189, CMS50189, 2606363, 2606363M, 4CB50132, SK521976, 1503046, X07CJ0147, JTC2604
Frequently Asked Questions
Does this fit the 1999-2000 Chevrolet Silverado 2500?
Yes. The 1999-2000 Chevrolet Silverado 2500 is a listed application, as are the 2003-2025 Chevrolet Express 2500 and the 2003-2025 Chevrolet Express 3500. See the "Vehicles it fits" section for the full list.
Which position is this Dorman suspension control arm for?
It is cataloged for the front right upper position on the listed applications.
What comes with the assembly?
Each assembly arrives with the ball joint and bushings pre-installed, which saves time and labor during the repair.
What does an upper control arm do?
It connects the steering knuckle to the chassis. This lets the wheel move up and down with the suspension while helping hold the wheel in position.
What are signs the control arm may need replacing?
Common signs are clunking over bumps, loose or wandering steering, uneven tire wear, and a worn ball joint or cracked bushings. Have the suspension inspected to confirm the cause.
