Moog RK621900 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Reliable Suspension Control Arm and Ball Joint Assembly

The Moog RK621900 suspension control arm and ball joint assembly is engineered for Chevrolet, GMC, and Isuzu trucks including the Canyon, Colorado, i-350, and i-370 models. Designed to restore precise steering and suspension performance, this pre-greased assembly offers durability and ease of maintenance.

• Pre-greased for immediate use and reduced maintenance
• Includes grease fitting for convenient lubrication
• Rubber bushings included to absorb road vibrations
• Stamped steel control arm construction for strength and reliability
• Bolt-in ball joint mounting with threaded stud for secure fitment
• Black finish control arm with a maximum length of 11.85 inches
• Mounting hardware included for straightforward installation

Durable Design and Construction Details

The Moog RK621900 control arm and ball joint assembly features a stamped steel control arm that balances strength and weight. Its black finish helps resist corrosion, extending the component's service life. The assembly comes pre-greased and includes a grease fitting, allowing for easy lubrication to maintain smooth ball joint operation. Rubber bushings are integrated to reduce noise and vibration, improving ride quality on Chevrolet Canyon, GMC Colorado, and Isuzu i-350 and i-370 vehicles. The ball joint uses a bolt-in mounting type with a threaded stud, ensuring a secure and precise fit.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with the following makes and models:

• Chevrolet Canyon
• GMC Colorado
• Isuzu i-350
• Isuzu i-370

It is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and steering response.

Common Issues Addressed by This Assembly

• Excessive play or looseness in the suspension system
• Uneven tire wear caused by misaligned control arms
• Clunking or knocking noises during driving over bumps
• Vibration or poor handling due to worn bushings or ball joints
• Difficulty maintaining proper wheel alignment

Installation Notes and Tips

Installation of the Moog RK621900 assembly requires basic suspension tools and mechanical knowledge. The included mounting hardware simplifies the process. Since the assembly is pre-greased and includes a grease fitting, periodic lubrication is recommended to extend component life. Ensure proper torque specifications are followed for all bolts and nuts during installation to maintain safety and performance.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards. The RK621900 assembly undergoes rigorous testing to ensure durability and fitment accuracy. While specific warranty details are not provided here, Moog typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or Moog directly for warranty terms.