Dorman 521-625 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-625 suspension control arm and ball joint assembly is engineered for reliable performance in Dodge, Mercedes-Benz, and Volkswagen vehicles. Designed specifically for models like the Sprinter 1500, Sprinter 2500, Sprinter 3500, Sprinter 3500XD, and Crafter Van, this assembly ensures precise suspension control and improved handling.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete setup
• Adjustable steel control arm with a maximum length of 237 mm and width of 288.5 mm
• Press-in ball joint with threaded stud and 14 mm thread diameter
• Black casting/forged control arm designed for light suspension grade use
• One mounting hole with a diameter of 12.3 mm for secure attachment

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is constructed from durable steel with a black finish, providing strength and corrosion resistance. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, enhancing ride comfort. The ball joint is press-in mounted and installed, featuring a threaded stud for secure connection. The control arm is adjustable, allowing for precise alignment adjustments to maintain proper suspension geometry. Mounting hardware is included to facilitate a straightforward installation process.

Compatible Vehicles and Applications

This Dorman 521-625 control arm and ball joint assembly is compatible with several commercial and passenger vehicles, including:

• Dodge Sprinter 1500, 2500, 3500, and 3500XD models
• Mercedes-Benz Sprinter 1500, 2500, 3500, and 3500XD models
• Volkswagen Crafter Van

It is designed to meet the suspension requirements of these vehicles, providing reliable control and stability under light suspension grade conditions.

Common Suspension Issues Addressed

• Worn or damaged control arms causing poor handling or alignment issues
• Ball joint wear leading to steering looseness or uneven tire wear
• Excessive vibration or noise from deteriorated bushings
• Difficulty maintaining proper suspension geometry due to non-adjustable components
• Corrosion or fatigue in original suspension parts affecting safety and performance

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 521-625 part number. The assembly comes pre-greased and includes all necessary bushings and mounting hardware, simplifying the replacement process. Use appropriate tools to press in the ball joint if removal is required. Adjust the control arm to the specified alignment settings for your vehicle model to ensure optimal suspension performance. Always follow manufacturer torque specifications for mounting hardware.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-625 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and reliability. This product is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.