Dorman 520-303 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-303 suspension control arm and ball joint assembly is engineered for reliable performance in Chrysler and Dodge vehicles. Designed specifically for models like the 300M, Concorde, Intrepid, LHS, and New Yorker, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Iron control arm with casting/forged construction
• Press-in ball joint with pinch stud type installed
• Compatible with light suspension grade requirements

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-303) features a black iron control arm constructed through casting and forging methods for strength and durability. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings to absorb road vibrations and reduce noise, along with all necessary mounting hardware for a complete replacement. The ball joint is press-in mounted with a pinch stud type and is installed and ready for use. The control arm measures a maximum length of 237 mm and a maximum width of 288.5 mm, with a mounting hole diameter of 12.3 mm and a single mounting hole for secure attachment. This assembly is designed for light suspension grade applications, suitable for regular driving conditions.

Compatible Vehicles and Applications

This Dorman suspension control arm and ball joint assembly is compatible with various Chrysler and Dodge models, including the 300M, Concorde, Intrepid, LHS, and New Yorker. It is intended for use in suspension systems requiring a light suspension grade control arm and ball joint assembly to maintain proper wheel alignment 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

Installation of the Dorman 520-303 assembly requires basic suspension repair tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly is ready for direct installation. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. This assembly is not adjustable, so proper fitment verification before installation is recommended. Professional installation is advised for optimal suspension performance and safety.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-303 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official warranty policy for complete information.