Dorman 522-021 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Dorman 522-021 Front Left Lower Control Arm

Dorman 522-021 is a direct replacement suspension control arm and ball joint assembly for specific Buick, Chevrolet, GMC, and Saturn applications. It is built for the front left lower position and uses a boxed steel construction to help restore smooth ride quality, directional stability, and predictable steering response.

Compatible With 2007-2016 GMC Acadia, front left lower; 2008-2017 Buick Enclave, front left lower; 2009-2017 Chevrolet Traverse, front left lower; 2007-2010 Saturn Outlook, front left lower; and 2017 GMC Acadia Limited, front left lower.

• Direct replacement for OE-style suspension service
• Boxed steel control arm construction for strength and durability
• Ball joint included and installed
• Pre-greased for immediate service
• Bushings included with rubber and steel bushing materials
• Mounting hardware included
• Standard replacement grade for common suspension repair
• Black finish

Fitment and Application Details

This Dorman 522-021 assembly is engineered for the front left lower suspension position on the listed vehicles. It cross-references MOOG Chassis Products CK621232 for the same application.

Use this part when servicing the front suspension on a 2008-2017 Buick Enclave, 2009-2017 Chevrolet Traverse, 2017 GMC Acadia Limited, 2007-2016 GMC Acadia, or 2007-2010 Saturn Outlook. The assembly includes a threaded ball joint stud with a 14 mm ball joint thread diameter and bolt-in ball joint mounting type.

What It Helps Repair

• Clunking or looseness from a worn lower control arm
• Uneven tire wear caused by suspension play
• Steering wander or reduced directional stability
• Noise from deteriorated bushings or ball joint wear
• Front-end alignment issues after suspension component failure

Installation Notes and Tips

Verify vehicle year, make, model, and front left lower position before installation. Inspect adjacent suspension components, fasteners, and alignment settings during replacement. Because the assembly is pre-greased and includes the ball joint and bushings, it is ready for standard suspension service once installed.

Quality Assurance

Dorman subjects this control arm and ball joint assembly to an industry-focused evaluation process to help support smooth ride quality, stable handling, and consistent suspension dynamics. Part number 522-021 is built as a standard replacement for specific OE applications.