Moog RK620654 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Moog Suspension Control Arm and Ball Joint Assembly

The Moog RK620654 suspension control arm and ball joint assembly is designed specifically for Lexus LS400 models. This pre-greased, forged steel control arm ensures reliable suspension performance and durability for your vehicle.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Forged steel control arm construction in black finish
• Press-in ball joint with threaded stud type
• Compatible with Lexus LS400 suspension systems

Detailed Product Description

The Moog RK620654 control arm and ball joint assembly is engineered with a forged steel control arm that provides strength and longevity under demanding driving conditions. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to help absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint features a press-in mounting type with a threaded stud, ensuring secure attachment and ease of replacement. This control arm measures up to 12.510 inches in length and is finished in black to resist corrosion.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with Lexus LS400 models, providing a direct replacement for worn or damaged suspension components. The part number RK620654 corresponds specifically to this fitment, ensuring proper fit and function.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Alignment problems due to bent or weakened control arms
• Reduced handling performance and vehicle control

Installation Notes and Tips

Installation of the Moog RK620654 control arm assembly requires basic suspension knowledge and tools. Since the assembly comes pre-greased and includes bushings and mounting hardware, it simplifies the replacement process. Ensure the vehicle is properly supported and aligned after installation to maintain optimal suspension performance. The non-adjustable design means no additional adjustments are necessary beyond standard alignment procedures.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM specifications. The RK620654 control arm and ball joint assembly undergoes rigorous testing to ensure durability and performance. While specific warranty details may vary, Moog typically offers a limited warranty covering defects in materials and workmanship for this part.