Moog RK80531 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Moog RK80531 Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK80531 suspension control arm and ball joint assembly is engineered for precise fitment on select BMW models including the 318i, 318is, 318ti, 320i, 323i, 323is, 325i, 325is, 328i, 328is, M3, and Z3. Designed with durability and performance in mind, this assembly ensures reliable suspension function and improved vehicle handling.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings for effective vibration dampening
• Forged steel control arm construction for strength and longevity
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for a complete replacement solution
• Control arm finished in black for corrosion resistance
• Maximum control arm length of 12.7 inches for precise fitment

Detailed Product Features and Specifications

The Moog RK80531 control arm and ball joint assembly features a forged steel control arm that provides enhanced structural integrity compared to stamped steel alternatives. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce noise and absorb road vibrations, contributing to a smoother ride. The ball joint is designed with a press-in mounting type and a threaded stud, ensuring a secure and reliable connection to the suspension system. This assembly is finished in black to resist corrosion and maintain durability over time. Mounting hardware is included, simplifying the installation process and ensuring all necessary components are provided.

Compatible BMW Models and Applications

This suspension control arm and ball joint assembly is compatible with a range of BMW vehicles, specifically the 318i, 318is, 318ti, 320i, 323i, 323is, 325i, 325is, 328i, 328is, M3, and Z3 models. The part number RK80531 ensures exact fitment and performance for these vehicles, making it a suitable replacement for worn or damaged suspension components.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing excessive play or noise
• Ball joint wear leading to steering instability or uneven tire wear
• Corroded or weakened control arm compromising suspension integrity
• Vibration and harshness due to deteriorated suspension components
• Loose or faulty mounting hardware affecting alignment and handling

Installation Notes and Tips

Before installation, verify compatibility with your specific BMW model using the part number RK80531. The assembly comes pre-greased and includes mounting hardware, but it is recommended to inspect all suspension components during replacement. Use proper tools to press in the ball joint and torque mounting bolts to manufacturer specifications. Alignment should be checked and adjusted after installation to ensure optimal handling and tire wear.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The RK80531 assembly undergoes rigorous quality control to ensure fitment and function. While specific warranty details may vary, Moog typically offers a limited warranty against defects in materials and workmanship, supporting long-term confidence in the product.