Dorman 520-493 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 520-493 suspension control arm and ball joint assembly is designed for reliable performance in Ford Escape, Mazda Tribute, and Mercury Mariner vehicles. This pre-greased, steel control arm assembly includes rubber bushings and a threaded ball joint to ensure smooth suspension operation.

• Pre-greased for immediate installation and reduced maintenance
• Includes rubber bushings for vibration dampening
• Steel construction with casting/forged control arm type for durability
• Threaded ball joint stud with press-in mounting type
• Mounting hardware included for a complete replacement
• Compatible with Ford Escape, Mazda Tribute, and Mercury Mariner models

Detailed Product Description

The Dorman 520-493 suspension control arm and ball joint assembly is engineered to meet regular suspension grade requirements with a light suspension grade type. The control arm is constructed from durable steel using casting and forging methods, providing strength and longevity. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings that help absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is installed and features a threaded stud with a 14 mm thread diameter, secured via a press-in mounting type. This assembly includes one mounting hole with a diameter of 12.3 mm and comes with all necessary mounting hardware, ensuring a straightforward installation process. The control arm measures up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with the following vehicles:

• Ford Escape
• Mazda Tribute
• Mercury Mariner

It is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and vehicle handling.

Common Issues Addressed by This Assembly

• Excessive suspension noise or clunking
• Uneven tire wear due to misalignment
• Loose or unstable steering feel
• Vibration or harshness while driving
• Worn or damaged control arm bushings or ball joints

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 520-493 part number. The assembly comes pre-greased and includes mounting hardware, simplifying the replacement process. Use proper tools to press out the old ball joint if necessary, and torque all mounting bolts to manufacturer specifications. Since this control arm is not adjustable, alignment should be checked and corrected after installation to ensure optimal handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-493 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. Consult product documentation for exact warranty terms.