Dorman 521-577 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for Nissan X-Trail

The Dorman 521-577 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for Nissan X-Trail models. Designed with quality materials and pre-greased components, this assembly ensures reliable operation and long service life.

• Pre-greased ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Aluminum control arm with black finish for corrosion resistance
• Press-in ball joint with threaded stud for secure fitment
• Compatible with Nissan X-Trail suspension systems

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-577) features a forged and cast aluminum control arm designed for light suspension grade applications. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, while the ball joint is press-in mounted with a 14 mm threaded stud for secure attachment. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single 12.3 mm mounting hole. Mounting hardware is provided to facilitate installation.

Compatible Nissan X-Trail Suspension Replacement

This Dorman suspension control arm and ball joint assembly is specifically compatible with Nissan X-Trail vehicles, providing a direct replacement for worn or damaged suspension components. It is designed to maintain factory suspension geometry and handling characteristics, ensuring safe and stable vehicle operation.

Common Suspension Issues Addressed

• Excessive play or looseness in steering
• Uneven tire wear due to misalignment
• Clunking noises from worn ball joints or bushings
• Reduced suspension responsiveness and control
• Vibration or instability during driving

Installation Notes and Tips

Installation of the Dorman 521-577 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary. Ensure all mounting hardware is torqued to manufacturer specifications. This assembly is not adjustable, so alignment should be checked and corrected after installation to maintain proper handling.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-577 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. While specific warranty details vary, Dorman typically offers limited warranties covering defects in materials and workmanship.