Dorman 521-273 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Overview of Dorman Suspension Control Arm for Infiniti FX35 and FX45

The Dorman 521-273 suspension control arm and ball joint assembly is designed specifically for Infiniti FX35 and FX45 models. This pre-greased, light suspension grade control arm offers a reliable replacement option to maintain proper suspension geometry and vehicle handling.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Press-in ball joint with pinch stud type installed
• Constructed from durable iron with a black finish
• Compatible with Infiniti FX35 and FX45 suspension systems

Detailed Product Features and Specifications

The Dorman 521-273 control arm assembly features a casting/forged iron construction that ensures strength and durability under regular driving conditions. It comes pre-greased and includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is press-in mounted with a pinch stud type and is installed for convenience. This assembly includes one mounting hole with a diameter of 12.3 mm and is supplied with all necessary mounting hardware for a straightforward replacement process. The control arm measures a maximum length of 237 mm and a maximum width of 288.5 mm, finished in black to resist corrosion.

Compatible Vehicles and Applications

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

• Infiniti FX35
• Infiniti FX45

It is designed to replace worn or damaged control arms in these vehicles, restoring proper suspension alignment and handling characteristics.

Common Suspension Issues Addressed

• Excessive play or looseness in the front suspension
• Uneven tire wear due to misalignment
• Clunking or knocking noises during driving
• Reduced steering responsiveness or stability
• Vibration or harshness from worn bushings or ball joints

Installation Notes and Tips

• Ensure vehicle is securely lifted and supported before removal
• Compare new control arm dimensions with the original part for fitment confirmation
• Torque mounting hardware to manufacturer specifications
• Check alignment after installation to maintain proper handling
• Since the ball joint is pre-installed and pre-greased, no additional lubrication is required

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-273 control arm assembly undergoes rigorous quality checks to ensure durability and performance. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.