Moog RK620981 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Reliable Suspension Control Arm for Mercedes-Benz Models

The Moog RK620981 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for select Mercedes-Benz vehicles. Designed with durability and fitment in mind, this control arm assembly is pre-greased and includes rubber bushings to ensure smooth operation and long service life.

• Pre-greased for immediate use and reduced maintenance
• Includes durable rubber bushings for vibration dampening
• Forged steel control arm construction for strength and reliability
• Press-in ball joint with threaded stud for secure mounting
• Compatible with multiple Mercedes-Benz models including C250, C300, E350, and SLK55 AMG
• Black finish control arm with a maximum length of 12.990 inches
• Mounting hardware included for straightforward installation

Durable Design and Precise Fitment

The Moog RK620981 control arm assembly features a forged steel control arm that provides enhanced strength and resistance to wear. The assembly comes pre-greased, eliminating the need for initial lubrication and helping to maintain smooth ball joint movement. Rubber bushings are included to absorb road vibrations and reduce noise, contributing to a more comfortable driving experience. The ball joint is press-in mounted with a threaded stud type, ensuring a secure and reliable connection to the suspension system. Finished in black, the control arm measures up to 12.990 inches in length, designed specifically for a precise fit on compatible Mercedes-Benz models.

Compatible Mercedes-Benz Models

This suspension control arm and ball joint assembly is compatible with a range of Mercedes-Benz vehicles, including the C250, C300, C350, E350, E400, E550, SLC300, SLK55 AMG, SLK250, SLK300, and SLK350. The part number RK620981 ensures you receive the correct component tailored 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 affecting vehicle handling and safety
• Corroded or weakened control arm compromising suspension integrity

Installation Notes and Tips

Before installation, verify compatibility with your specific Mercedes-Benz model using the part number RK620981. The assembly comes pre-greased and includes bushings and mounting hardware, simplifying the replacement process. Use proper tools to press in the ball joint securely and torque all fasteners to manufacturer specifications. It is recommended to have a professional alignment performed after installation to ensure optimal suspension performance.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The RK620981 control arm assembly undergoes rigorous quality control to ensure fit and function. While specific warranty details are not provided here, Moog typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.