Dorman 522-558 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 522-558 suspension control arm and ball joint assembly is engineered for reliable performance in select Infiniti and Nissan vehicles. Designed with pre-greased components and included bushings, this assembly supports smooth suspension operation and vehicle handling.

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings and mounting hardware for a complete installation
• Machined ball joint with pinch stud type for secure fitment
• Constructed from lightweight aluminum with a black finish
• Compatible with Infiniti 370Z, EX35, EX37, G37, Q50, Q60, QX50 and Nissan models

Technical Specifications and Features

This suspension control arm and ball joint assembly (part number 522-558) features a casting/forged aluminum control arm designed for light suspension grade applications. The assembly includes a machined ball joint with a 14 mm thread diameter and a pinch stud mounting type, ensuring precise alignment and durability. Rubber bushings are pre-installed to reduce vibration and noise, while the single mounting hole with a 12.3 mm diameter simplifies installation. The control arm measures up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance.

Compatible Infiniti and Nissan Models

This Dorman suspension control arm and ball joint assembly is compatible with a range of Infiniti and Nissan vehicles, including the Infiniti 370Z, EX35, EX37, G37, Q50, Q60, and QX50. It is designed to meet the suspension requirements of these models, providing a direct replacement for worn or damaged control arms and ball joints.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Corroded or bent control arms affecting suspension geometry
• Loose or failing ball joint mounts reducing vehicle handling
• Vibration and noise from deteriorated suspension components

Installation Notes and Tips

Installation of the Dorman 522-558 assembly requires basic suspension knowledge and tools. Since the control arm comes pre-greased and includes bushings and mounting hardware, preparation time is reduced. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Verify torque specifications for mounting bolts and ball joint stud during installation. Alignment check after installation is recommended to maintain proper handling.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 522-558 control arm and ball joint assembly undergoes quality inspections to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.