Moog RK620983 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Moog RK620983 Suspension Control Arm Assembly

The Moog RK620983 suspension control arm and ball joint assembly is engineered for reliable performance on select Mercedes-Benz models. Designed with forged aluminum and pre-greased components, this assembly ensures durability and smooth operation for your vehicle's suspension system.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Forged aluminum control arm for strength and reduced weight
• Press-in ball joint with threaded stud for secure fitment
• Compatible with Mercedes-Benz GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, and ML550

Detailed Product Features and Specifications

The RK620983 control arm assembly features a forged aluminum control arm finished in gray, measuring up to 11.410 inches in length. It comes pre-greased, eliminating the need for initial lubrication, although it does not include a grease fitting. The assembly includes rubber bushings to absorb vibrations and reduce noise, enhancing ride comfort. The ball joint is press-in mounted with a threaded stud type, providing a secure and precise connection to the suspension system. All necessary mounting hardware is included for a complete installation.

Compatible Mercedes-Benz Models

This Moog suspension control arm and ball joint assembly is specifically designed for the following Mercedes-Benz vehicles: GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, and ML550. Using the correct part number RK620983 ensures proper fitment and optimal suspension performance for these models.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Corroded or bent control arms affecting wheel alignment
• Vibration and harshness due to deteriorated suspension components
• Loose or missing mounting hardware compromising suspension integrity

Installation Notes and Tips

Installation of the Moog RK620983 control arm assembly requires basic suspension knowledge and tools. Since the ball joint is press-in mounted, professional press equipment is recommended for removal and installation. The assembly comes pre-greased and includes all necessary bushings and mounting hardware, simplifying the replacement process. Always verify compatibility with your specific Mercedes-Benz model before installation.

Quality Assurance and Warranty

Moog parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The RK620983 suspension control arm assembly is backed by Moog's limited warranty, providing coverage against defects in materials and workmanship. Refer to Moog's official warranty documentation for detailed terms and conditions.