Dorman 526-284 Front Passenger Side Upper Suspension Control Arm and Ball Joint Assembly

The Dorman 526-284 is a front passenger side upper suspension control arm and ball joint assembly engineered as a direct OE replacement for select Mercedes-Benz models. This complete assembly restores proper front suspension geometry, delivering the smooth ride quality and precise handling characteristics the vehicle was designed to provide.

Key Features:

• Direct OE Replacement — bolt-on fitment designed to match the original equipment assembly on specific vehicle applications
• Pre-Installed Ball Joint — comes complete with ball joint and bushings pre-installed, reducing labor time and simplifying the repair
• Industry-Leading Evaluation Process — rigorously tested to ensure a smooth ride, directional stability, and agile handling
• Improved Engineering — Dorman engineers analyze original equipment failure points and incorporate design improvements to reduce the likelihood of repeat failure
• Corrosion Resistance — additional protective coatings help guard against rust and corrosion for long-lasting durability
• Passenger Side Upper Position — designed specifically for the front right (passenger side) upper control arm location

Control arm replacement intervals can vary widely — from approximately 30,000 to 100,000 miles — depending on driving conditions and road environment. Replacing a worn upper control arm and ball joint assembly restores proper suspension geometry, eliminates clunking or vibration, and helps maintain safe directional control. The Dorman 526-284 provides a reliable, cost-effective alternative to dealer parts for Mercedes-Benz suspension repair.