Moog RK620025 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK620025 suspension control arm and ball joint assembly is engineered for precise fitment on BMW 325xi and 330xi models. 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 enhanced strength
• 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 14.110 inches for exact fit

Detailed Product Description

The Moog RK620025 suspension control arm and ball joint assembly is specifically designed to meet the suspension requirements of BMW 325xi and 330xi vehicles. Constructed from forged steel, the control arm offers robust structural integrity to withstand road stresses. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce noise and absorb shocks, contributing to a smoother ride. The ball joint features a press-in mounting type with a threaded stud, ensuring a secure and stable connection to the suspension system. This assembly also includes all necessary mounting hardware, providing a comprehensive replacement part that simplifies installation.

Common Applications and Problem Resolution

• Restores proper suspension geometry and alignment
• Eliminates clunking or knocking noises from worn control arms
• Improves steering response and vehicle stability
• Replaces damaged or fatigued ball joints to prevent unsafe handling
• Addresses excessive vibration or uneven tire wear caused by faulty bushings

Installation Notes and Tips

Installation of the Moog RK620025 control arm assembly requires basic suspension knowledge and tools. Since the part is pre-greased and includes bushings and mounting hardware, it is ready for direct installation. Ensure the vehicle is properly supported and aligned after replacement. Torque all fasteners to manufacturer specifications to maintain safety and performance. It is recommended to have a professional alignment performed following installation to optimize handling characteristics.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The RK620025 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.