Dorman 520-587 Suspension Control Arm - Front Left Lower

Durable Suspension Control Arm for Mercedes-Benz Models

The Dorman 520-587 suspension control arm is engineered to provide reliable performance for select Mercedes-Benz vehicles, including the E55 AMG, E300, E320, E420, and E430. Constructed from steel with a coated black finish, this control arm offers strength and corrosion resistance for long-lasting use.

• Made from durable steel with casting and forged construction
• Includes a rubber bushing with black color for vibration dampening
• Overall length of 262.5 mm for precise fitment
• Welded ball joint mounting with threaded stud type (ball joint not included)
• Coated finish to resist corrosion and wear
• Compatible with Mercedes-Benz E55 AMG, E300, E320, E420, and E430 models
• Part number 520-587 for accurate identification

Technical Details and Construction

This suspension control arm features a robust steel construction combining casting and forging methods to ensure structural integrity under stress. The black coated finish protects against rust and environmental damage. It includes a single rubber bushing with an inside diameter of 14.3 mm and an outside diameter of 39.6 mm, designed to absorb road vibrations and reduce noise. The bushing length measures 92 mm, and the linkage end type is bushing with a press-in end 2 type. The ball joint mounting is welded with a threaded stud, though the ball joint itself is not included with this part.

Compatible Vehicles and Applications

This control arm is specifically compatible with the following Mercedes-Benz models: E55 AMG, E300, E320, E420, and E430. It is designed to replace worn or damaged suspension control arms to restore proper wheel alignment and suspension geometry.

• Corrects suspension misalignment and uneven tire wear
• Eliminates clunking or knocking noises from worn bushings
• Improves vehicle handling and steering response
• Restores proper suspension travel and ride comfort
• Addresses issues caused by bent or damaged control arms

Installation Notes and Tips

Installation of the Dorman 520-587 control arm requires basic suspension knowledge and appropriate tools. Since the ball joint is not included, ensure the existing ball joint is inspected and replaced if necessary. The control arm comes without mounting hardware, so reusing original bolts or sourcing new hardware is necessary. Proper torque specifications should be followed to maintain safety and performance. It is recommended to have a professional alignment performed after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 520-587 control arm undergoes rigorous quality checks to ensure durability and reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties on their suspension parts. Refer to official Dorman documentation for exact warranty terms.