Dorman 520-948 Suspension Control Arm and Ball Joint Assembly - Rear Right Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 520-948 suspension control arm and ball joint assembly is designed specifically for Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 models. This pre-greased, aluminum control arm assembly offers a reliable replacement option for light suspension grade applications, ensuring proper vehicle handling and suspension performance.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Aluminum control arm with black finish
• Press-in ball joint with threaded stud included and installed
• Compatible with Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500

Detailed Product Features and Specifications

The Dorman 520-948 control arm assembly features a casting/forged aluminum control arm measuring up to 288.5 mm in width and 237 mm in length. It comes with a single mounting hole of 12.3 mm diameter and includes rubber bushings to absorb vibrations and reduce noise. The ball joint is press-in mounted with a 14 mm threaded stud, pre-installed and ready for use. This assembly is designed for light suspension grade applications and is not adjustable. The black finish provides corrosion resistance and a clean appearance under the vehicle.

Compatible Vehicles and Application

This suspension control arm and ball joint assembly is compatible with the following Mercedes-Benz models:

• ML55 AMG
• ML320
• ML350
• ML430
• ML500

It is engineered to meet the suspension requirements of these vehicles, ensuring proper fitment and function.

Common Issues Addressed by This Control Arm Assembly

• Worn or damaged control arm bushings causing suspension noise or vibration
• Loose or failing ball joints affecting steering stability
• Corroded or bent control arms compromising alignment and handling
• Premature wear due to lack of lubrication or damaged components
• Replacement of original equipment for maintenance or repair

Installation Notes and Tips

The Dorman 520-948 assembly comes pre-greased and includes all necessary mounting hardware for straightforward installation. Since the ball joint is press-in mounted and pre-installed, no additional ball joint assembly is required. Ensure proper torque specifications are followed during installation and verify alignment after replacement. This control arm is not adjustable, so alignment adjustments should be made separately.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-948 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.