Moog RK620123 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Overview of Moog RK620123 Suspension Control Arm Assembly

The Moog RK620123 suspension control arm and ball joint assembly is engineered for precise fitment on select BMW models including the 525i, 530i, 545i, and 550i. Designed with durability and performance in mind, this assembly features a forged aluminum control arm and pre-greased components to ensure smooth operation and long service life.

• Pre-greased ball joint for immediate use
• Forged aluminum control arm for strength and reduced weight
• Includes rubber bushings for vibration dampening
• Press-in ball joint with threaded stud for secure mounting
• Gray finish control arm with a maximum length of 11.75 inches
• Mounting hardware included for straightforward installation

Detailed Product Description

The Moog RK620123 suspension control arm and ball joint assembly is specifically designed to meet the suspension needs of BMW 525i, 530i, 545i, and 550i models. The control arm is constructed from forged aluminum, providing a balance of strength and lightweight performance that helps maintain vehicle handling characteristics. The assembly comes pre-greased, eliminating the need for initial lubrication and reducing maintenance requirements. Rubber bushings are included to 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 a secure and reliable connection to the suspension system. Finished in gray, the control arm measures up to 11.75 inches in length, matching OEM specifications for proper fit and function.

Common Applications and Problem Resolution

• Replacement for worn or damaged suspension control arms on BMW 525i, 530i, 545i, and 550i
• Addresses issues with loose or noisy ball joints affecting steering precision
• Resolves vibration and harshness caused by deteriorated bushings
• Corrects alignment problems resulting from bent or compromised control arms
• Improves overall suspension stability and vehicle handling

Installation Notes and Tips

Installation of the Moog RK620123 assembly requires basic suspension knowledge and appropriate tools. Since the ball joint is press-in type with a threaded stud, ensure proper torque specifications are followed during mounting. The assembly comes pre-greased, so no additional lubrication is necessary before installation. Verify compatibility with your specific BMW model year and suspension setup before beginning installation. It is recommended to perform a wheel alignment after replacement to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The RK620123 control arm and ball joint assembly undergoes rigorous quality control testing. While specific warranty details are not provided here, Moog typically offers limited warranties on their suspension parts. Consult product documentation or Moog directly for exact warranty terms related to this part.