Moog RK621945 Suspension Control Arm and Ball Joint Assembly - Front Lower Forward

Overview of Moog RK621945 Suspension Control Arm Assembly

The Moog RK621945 suspension control arm and ball joint assembly is engineered for precise fitment on select BMW models including the 325xi, 328i xDrive, 328xi, 330xi, 335i xDrive, 335xi, and X1. Designed with durability and performance in mind, this assembly ensures reliable suspension function and vehicle stability.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete replacement
• Forged steel control arm construction for enhanced strength
• Press-in ball joint with threaded stud for secure mounting
• Black finish control arm with a maximum length of 10.640 inches

Detailed Product Features and Specifications

The Moog RK621945 control arm assembly features a forged steel control arm that provides robust structural integrity, essential for maintaining suspension geometry under various driving conditions. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, contributing to a smoother ride. The ball joint is press-in mounted with a threaded stud type, ensuring a secure and reliable connection to the suspension system. This assembly is designed specifically for BMW models such as the 325xi, 328i xDrive, 328xi, 330xi, 335i xDrive, 335xi, and X1, guaranteeing compatibility and proper fitment.

Applications and Problem Resolution

• Replaces worn or damaged suspension control arms on compatible BMW models
• Addresses issues related to suspension noise and vibration
• Corrects alignment problems caused by faulty control arm bushings
• Improves handling and steering response by restoring suspension geometry
• Eliminates play or looseness in the ball joint connection

Installation Notes and Tips

Installation of the Moog RK621945 control arm assembly requires basic suspension knowledge and appropriate tools. Since the part comes pre-greased and includes bushings and mounting hardware, it simplifies the replacement process. It is important to torque all fasteners to manufacturer specifications and perform a wheel alignment after installation to ensure optimal vehicle handling and tire wear.

Quality Assurance and Warranty Information

Moog is recognized for manufacturing suspension components that meet or exceed OEM standards. The RK621945 control arm assembly undergoes rigorous testing to ensure durability and performance. While specific warranty details should be confirmed at the point of purchase, Moog typically offers a limited warranty covering defects in materials and workmanship.