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

Dorman 526-284 Front Right Upper Control Arm

Dorman 526-284 is a direct replacement suspension control arm and ball joint assembly for specific Mercedes-Benz applications. It is built for the front right upper position and engineered to restore smooth ride quality, directional stability, and predictable steering response.

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits front right upper suspension locations on select Mercedes-Benz S-Class models
• Aluminum control arm construction with casting/forged design
• Pre-greased with ball joint included and installed
• Rubber bushings included for suspension isolation
• Machined ball joint mounting type with pinch-style stud
• Standard replacement grade for OE-style service
• Part number 526-284 for easy identification

Fitment Details

• Fits 2018-2021 Mercedes-Benz S560, Front Right Upper
• Fits 2018-2020 Mercedes-Benz Maybach S560, Front Right Upper
• Fits 2018-2020 Mercedes-Benz Maybach S650, Front Right Upper
• Fits 2018-2020 Mercedes-Benz S450, Front Right Upper
• Fits 2019-2020 Mercedes-Benz S450L, Front Right Upper
• Fits 2019-2020 Mercedes-Benz S560e, Front Right Upper
• Fits 2019-2020 Mercedes-Benz S560L, Front Right Upper
• Fits 2016-2020 Mercedes-Benz S600L, Front Right Upper
• Fits 2016-2018 Mercedes-Benz S400L, Front Right Upper
• Fits 2014-2018 Mercedes-Benz S500, Front Right Upper
• Fits 2017-2018 Mercedes-Benz S500L, Front Right Upper
• Fits 2015 Mercedes-Benz S500L, Front Right Upper
• Fits 2017 Mercedes-Benz Maybach S550, Front Right Upper
• Fits 2016-2017 Mercedes-Benz Maybach S600, Front Right Upper
• Fits 2014-2017 Mercedes-Benz S550, Front Right Upper
• Fits 2015-2017 Mercedes-Benz S550e, Front Right Upper
• Fits 2015-2017 Mercedes-Benz S600, Front Right Upper
• Fits 2014-2015 Mercedes-Benz S400, Front Right Upper

Built for OE-Style Suspension Service

This suspension control arm and ball joint assembly is made for Mercedes-Benz S560, S550, S600, and related S-Class variants that use the front right upper suspension position. The aluminum construction, integrated ball joint, and included bushings support precise suspension geometry and consistent road feel. Dorman 526-284 is a practical replacement when the original upper control arm shows wear, looseness, or noise.

This part cross-references MOOG Chassis Products (e.g., RK623922) for the same application.

What It Helps Address

• Front-end clunking or knocking from a worn upper control arm
• Excessive play in the suspension joint
• Uneven steering feel or reduced directional stability
• Suspension noise caused by deteriorated bushings
• Restoring OE-style alignment control at the front right upper corner

Installation Notes and Tips

Verify the front right upper position and confirm vehicle trim before ordering. This assembly is pre-greased and includes the ball joint and bushings, but mounting hardware is not included. After installation, a professional wheel alignment is recommended to confirm suspension geometry and steering response.

Quality Assurance

Dorman uses an evaluation process focused on fit, function, and durability for direct replacement suspension components. Part number 526-284 is built as a standard replacement for specific Mercedes-Benz applications and is intended to match the original equipment layout for service repair.