Dorman 522-138 Suspension Control Arm - Front Right Lower

Reliable Suspension Control Arm for Mercedes-Benz ML Series

The Dorman 522-138 suspension control arm is engineered to restore precise handling and stability for your Mercedes-Benz ML55 AMG, ML320, or ML430. Crafted from durable steel with a coated finish, this control arm is designed to meet the demands of your vehicle's suspension system.

• Constructed from high-strength steel with casting and forging for durability
• Includes a black rubber bushing with a 14.3 mm inside diameter for effective vibration absorption
• Overall length of 262.5 mm ensures proper fitment for specified Mercedes-Benz ML models
• Features a welded ball joint mounting type with a threaded stud (ball joint not included)
• Coated black finish provides corrosion resistance and long service life
• Includes one bushing; mounting hardware and ball joint are not included

Durable Construction and Precise Fitment

The Dorman 522-138 suspension control arm is manufactured using a combination of casting and forging processes to provide a robust and reliable component. Its steel construction offers strength necessary to withstand road stresses, while the coated black finish helps resist corrosion. The included rubber bushing is designed to reduce noise and vibration, improving ride quality. This control arm is specifically designed for Mercedes-Benz ML55 AMG, ML320, and ML430 models, ensuring a precise fit and proper suspension geometry.

Compatible Vehicles and Part Number Details

This suspension control arm is compatible with Mercedes-Benz ML55 AMG, ML320, and ML430 vehicles. The part number 522-138 identifies this specific control arm, making it easier to locate the correct replacement part for your suspension system. Ensure compatibility by verifying your vehicle model before installation.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Excessive suspension noise or vibration during driving
• Uneven tire wear due to misaligned suspension components
• Loose or imprecise handling affecting vehicle control
• Corroded or weakened control arm compromising suspension integrity

Installation Notes and Tips

Installation of the Dorman 522-138 control arm requires removal of the old control arm and proper alignment of the new part. Since the ball joint is not included, ensure your existing ball joint is in good condition or replace it separately. Use appropriate tools to press in the bushing and secure the control arm to the vehicle’s suspension. It is recommended to have a professional alignment performed after installation to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 522-138 control arm undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.