Dorman 521-177 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-177 suspension control arm and ball joint assembly is designed for reliable performance on Nissan Frontier, Pickup, and Xterra models. This pre-greased, steel control arm assembly offers a straightforward replacement solution for light suspension needs.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Press-in ball joint with threaded stud
• Constructed from durable steel with black finish
• Compatible with Nissan Frontier, Pickup, and Xterra vehicles

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-177) features a light suspension grade type suitable for regular driving conditions. The control arm is made from forged and cast steel, providing strength and durability. It comes pre-greased and includes rubber bushings to reduce vibration and noise. The ball joint is installed and features a press-in mounting type with a 14 mm threaded stud for secure attachment. The assembly includes one mounting hole with a diameter of 12.3 mm and comes with all necessary mounting hardware for installation. The control arm measures up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance.

Compatible Nissan Models and Applications

This Dorman suspension control arm and ball joint assembly is compatible with Nissan Frontier, Pickup, and Xterra models. It is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and vehicle handling.

• Eliminates suspension noise caused by worn bushings
• Restores steering stability and control
• Corrects uneven tire wear due to faulty ball joints
• Improves ride comfort by replacing damaged components
• Addresses loose or unstable front suspension issues

Installation Notes and Tips

Installation of the Dorman 521-177 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly is ready for immediate installation. Ensure the mounting hole aligns properly with the vehicle’s frame and torque all hardware to manufacturer specifications. No grease fitting is included, so no additional lubrication is necessary after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. This suspension control arm and ball joint assembly undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.