Moog RK621944 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Reliable Suspension Control Arm for Buick, Chevrolet, Pontiac, and Saturn

The Moog RK621944 Suspension Control Arm and Ball Joint Assembly is engineered to restore precise steering and suspension performance for select Buick, Chevrolet, Pontiac, and Saturn models. Designed with durability and fitment in mind, this pre-greased control arm assembly offers a direct replacement solution for vehicles like the Montana, Relay, Terraza, and Uplander.

• Pre-greased stamped steel control arm for long-lasting performance
• Includes rubber bushings and mounting hardware for a complete installation
• Bolt-in ball joint with threaded stud type for secure fitment
• Black finish control arm with a maximum length of 13.930 inches
• Compatible with Buick Montana, Chevrolet Uplander, Pontiac Montana, Saturn Relay, and Terraza

Durable Construction and Design Features

The Moog RK621944 control arm assembly is constructed from stamped steel, providing strength and resistance to wear under normal driving conditions. The included rubber bushings help absorb road vibrations and reduce noise, contributing to a smoother ride. This assembly comes pre-greased, eliminating the need for initial lubrication and ensuring immediate readiness upon installation. The ball joint is designed with a bolt-in mounting type and a threaded stud, allowing for secure attachment and reliable steering response. The black finish offers corrosion resistance and a clean appearance under the vehicle.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is specifically compatible with the following vehicles:

• Buick Montana
• Chevrolet Uplander
• Pontiac Montana
• Saturn Relay
• Saturn Terraza

Using the Moog RK621944 ensures proper fitment and function for these models, maintaining 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 due to bent or compromised control arms
• Reduced handling performance and vehicle control

Installation Notes and Tips

Installation of the Moog RK621944 control arm assembly requires basic suspension tools and mechanical knowledge. Since the part comes pre-greased and includes bushings and mounting hardware, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before beginning work. Torque all mounting bolts to manufacturer specifications and verify proper alignment after installation. Although the ball joint is bolt-in type, inspect surrounding suspension components for wear during replacement.

Quality Assurance and Warranty

Moog parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The RK621944 control arm assembly undergoes rigorous quality checks to ensure fit and function. While specific warranty details may vary, Moog typically offers a limited warranty covering defects in materials and workmanship. Refer to Moog’s official documentation for complete warranty information.