Moog RK80390 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Overview of Moog RK80390 Suspension Control Arm Assembly

The Moog RK80390 suspension control arm and ball joint assembly is designed for reliable performance on Ford and Mercury vehicles, including the Contour, Cougar, and Mystique models. This pre-greased, stamped steel control arm comes complete with all necessary hardware for a straightforward installation.

• Pre-greased for immediate use
• Includes grease fitting for easy maintenance
• Comes with rubber bushings for vibration dampening
• Bolt-in ball joint mounting with pinch-type stud
• Stamped steel construction in black finish
• Mounting hardware included for complete installation
• Maximum control arm length of 14.380 inches

Detailed Product Description

The Moog RK80390 suspension control arm and ball joint assembly is engineered with durability and fitment precision in mind. Constructed from stamped steel, this control arm offers structural strength while maintaining a manageable weight. The assembly includes rubber bushings that help absorb road vibrations and reduce noise, contributing to a smoother ride. The ball joint features a bolt-in mounting type with a pinch stud, ensuring secure attachment and reliable steering response. Additionally, the control arm is pre-greased and includes a grease fitting, allowing for easy lubrication and extended component life. The black finish provides corrosion resistance and a clean appearance under the vehicle.

Compatible Vehicles and Applications

This suspension control arm assembly is compatible with select Ford and Mercury models, specifically the Contour, Cougar, and Mystique. It is designed to meet the exact specifications required for these vehicles, ensuring proper fit and function. The part number RK80390 corresponds directly to this application, making it a suitable replacement for worn or damaged control arms on these models.

Common Issues Addressed by Moog RK80390

• Worn or damaged control arm bushings causing excessive play
• Ball joint wear leading to steering looseness or noise
• Corroded or bent control arms affecting wheel alignment
• Difficulty maintaining proper suspension geometry
• Vibration and harshness transmitted through the suspension

Installation Notes and Tips

Installation of the Moog RK80390 control arm assembly requires basic suspension tools and mechanical knowledge. Since the assembly comes pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before beginning work. Torque all fasteners to manufacturer specifications and verify proper alignment after installation. The included grease fitting allows for periodic lubrication to maintain ball joint performance.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards. The RK80390 control arm assembly undergoes rigorous quality control to ensure durability and fitment accuracy. This part includes a limited warranty against defects in materials and workmanship, providing confidence in its long-term reliability for Ford Contour, Mercury Cougar, and Mystique owners.