Moog RK621002 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Forward

Moog Suspension Control Arm and Ball Joint Assembly Overview

The Moog RK621002 suspension control arm and ball joint assembly is engineered for precise fitment on select Audi models including A4, A4 Quattro, A5, A5 Quattro, Q5, RS5, S4, S5, and SQ5. Designed with durability and performance in mind, this assembly features a forged aluminum control arm and pre-greased components to ensure reliable operation and long service life.

• Pre-greased ball joint for immediate use
• Forged aluminum control arm for strength and reduced weight
• Rubber bushings included for vibration dampening
• Press-in ball joint mounting with pinch-type stud
• Gray control arm color with a maximum length of 10.550 inches
• Mounting hardware included for straightforward installation

Detailed Product Description

The Moog RK621002 suspension control arm and ball joint assembly is constructed from forged aluminum, providing a balance of strength and lightweight performance critical for maintaining proper suspension geometry on Audi vehicles. The assembly comes pre-greased, eliminating the need for initial lubrication and reducing maintenance requirements. Rubber bushings are included to absorb road vibrations and improve ride quality. The ball joint features a press-in mounting type with a pinch stud, ensuring secure attachment and reliable steering response. This control arm assembly is finished in gray and measures up to 10.550 inches in length, matching OEM specifications for a precise fit.

Compatible Audi Models and Applications

• Compatible with Audi A4 and A4 Quattro models
• Fits Audi A5 and A5 Quattro vehicles
• Suitable for Audi Q5 and SQ5 SUVs
• Designed for Audi RS5, S4, and S5 performance models

Common Suspension Issues Addressed

• Worn or damaged control arms causing alignment problems
• Excessive suspension noise due to failing ball joints
• Vibration and harshness from deteriorated bushings
• Loose steering or poor handling characteristics
• Corrosion or fatigue in original suspension components

Installation Notes and Tips

Installation of the Moog RK621002 control arm assembly requires basic suspension tools and mechanical knowledge. Since the ball joint is press-in type with a pinch stud, proper tools should be used to avoid damage during removal and installation. The assembly comes pre-greased and includes rubber bushings and mounting hardware, simplifying the replacement process. It is recommended to perform a wheel alignment after installation to ensure 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 RK621002 control arm and ball joint assembly undergoes rigorous testing to verify fit, form, and function. While specific warranty details are not provided here, Moog typically offers limited warranties on their suspension parts to cover defects in materials and workmanship.