Moog RK621782 Suspension Control Arm and Ball Joint Assembly - Front Upper

Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK621782 suspension control arm and ball joint assembly is engineered for reliable performance in select GM trucks and SUVs. Designed with forged steel and pre-greased components, this assembly supports smooth steering and suspension operation for vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Forged steel control arm for durability
• Adjustable design with threaded ball joint stud
• Press-in ball joint mounting type
• Control arm length: 12.830 inches
• Black finish for corrosion resistance

Durable Construction and Design Features

The RK621782 control arm assembly features a forged steel control arm that provides strength and resistance to wear under demanding driving conditions. The included rubber bushings help absorb road vibrations, improving ride quality and reducing noise. The ball joint is press-in mounted with a threaded stud, allowing for secure attachment and easy replacement if needed. This assembly comes pre-greased, eliminating the need for initial lubrication, and includes all necessary mounting hardware for a straightforward installation. Its adjustable design allows for precise alignment adjustments to maintain proper suspension geometry.

Compatible Vehicles and Applications

This Moog suspension control arm and ball joint assembly is compatible with a range of GM vehicles, including:

• Cadillac Escalade, Escalade ESV, and Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Suburban 1500, and Tahoe
• GMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500
• Chevrolet Express 1500, Express 2500, Savana 1500, Savana 2500

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Misalignment affecting vehicle handling
• Corrosion or fatigue in original control arm components

Installation Notes and Tips

Installation of the Moog RK621782 assembly requires basic suspension tools and mechanical knowledge. Since the ball joint is press-in mounted, professional press equipment is recommended for removal and installation. The assembly comes pre-greased and includes mounting hardware, but verify torque specifications according to the vehicle service manual. After installation, a wheel alignment is advised to ensure proper suspension geometry and tire wear.

Quality Assurance and Warranty

Moog suspension components are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The RK621782 assembly is backed by Moog's limited warranty against defects in materials and workmanship. This warranty provides added confidence in the durability and performance of the control arm and ball joint assembly for your Cadillac, Chevrolet, or GMC vehicle.