Moog RK621231 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Reliable Suspension Control Arm and Ball Joint Assembly

The Moog RK621231 suspension control arm and ball joint assembly is designed to restore precise steering and suspension performance for select Buick, Chevrolet, GMC, and Saturn models. Engineered with stamped steel and pre-greased components, this assembly offers durability and ease of installation for vehicles like the Buick Enclave and Chevrolet Traverse.

• Pre-greased stamped steel control arm for enhanced durability
• Includes rubber bushings and mounting hardware for a complete replacement
• Bolt-in ball joint with threaded stud for secure fitment
• Compatible with Buick Acadia, Chevrolet Traverse, GMC Acadia Limited, Saturn Outlook, and related models
• Control arm finished in black with a maximum length of 15.480 inches

Durable Construction and Design Features

This Moog suspension control arm and ball joint assembly (part number RK621231) features a stamped steel control arm that provides strength and resistance to wear. The included rubber bushings help absorb road vibrations, improving ride quality and reducing noise. The ball joint is bolt-in mounted with a threaded stud type, ensuring a secure and reliable connection to the vehicle’s suspension system. Pre-greased components reduce maintenance needs, although this assembly does not include a grease fitting.

Compatible Vehicles and Applications

This control arm and ball joint assembly is compatible with a range of GM vehicles, including Buick Acadia, Buick Enclave, Chevrolet Acadia Limited, Chevrolet Traverse, GMC Acadia Limited, and Saturn Outlook. It is designed to meet the specific suspension requirements of these models, providing a direct replacement that maintains factory suspension geometry and handling characteristics.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Misalignment issues affecting vehicle handling
• Corroded or weakened control arm structure

Installation Notes and Tips

Installation of the Moog RK621231 assembly requires basic suspension knowledge and tools. The assembly comes pre-greased and includes all necessary bushings and mounting hardware for a straightforward replacement. Since the ball joint is bolt-in with a threaded stud, ensure proper torque specifications are followed during installation. This part is not adjustable, so alignment should be checked and corrected after installation.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The RK621231 control arm and ball joint assembly undergoes rigorous quality testing. While specific warranty details vary, Moog typically offers a limited warranty covering defects in materials and workmanship.