Dorman 526-290 Suspension Control Arm and Ball Joint Assembly - Front Lower Rearward

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 526-290 suspension control arm and ball joint assembly is engineered for Mercedes-Benz Maybach S-Class models including S450, S500, S500L, S550, S560, and Maybach S550 and S560. Designed with durable aluminum construction and pre-greased components, this assembly provides reliable suspension performance for light suspension grade applications.

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings and mounting hardware for a complete installation
• Machined ball joint with threaded stud for secure fitment
• Constructed from lightweight aluminum with a black finish
• Compatible with Mercedes-Benz Maybach S450, S500, S500L, S550, S560 models

Detailed Product Features and Specifications

This Dorman suspension control arm and ball joint assembly (part number 526-290) features a casting/forged aluminum control arm designed for light suspension grade use. The assembly comes pre-greased and includes rubber bushings to absorb road vibrations and improve ride quality. The ball joint is machined and installed with a threaded stud type, ensuring a precise and secure connection. Two mounting holes with a diameter of 14.3 mm provide stable attachment points, and the included mounting hardware simplifies installation. The control arm measures up to 410 mm in length and 140 mm in width, finished in black for corrosion resistance.

Compatible Vehicles and Applications

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

• Maybach S550 and S560
• Mercedes-Benz S450, S500, S500L, S550, and S560

It is designed to replace worn or damaged suspension components, restoring proper alignment and handling characteristics.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension control arm
• Worn or damaged ball joints causing steering instability
• Noise or vibration from deteriorated bushings
• Uneven tire wear due to misaligned suspension geometry
• Reduced ride comfort and handling performance

Installation Notes and Tips

Installation of the Dorman 526-290 assembly requires basic suspension knowledge and tools. Since the control arm comes pre-greased and includes bushings and mounting hardware, it reduces preparation time. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Torque all mounting bolts to manufacturer specifications and verify proper alignment after installation. This assembly is not adjustable, so alignment checks are recommended post-installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 526-290 control arm and ball joint assembly undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.