Dorman 524-520 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Dorman 524-520 Front Right Lower Control Arm

Dorman 524-520 is a direct replacement suspension control arm and ball joint assembly for specific Mercedes-Benz and INFINITI applications. It is built for the front right lower position and uses an aluminum control arm with a pre-greased, installed ball joint for consistent steering response and stable road feel.

Key Features

• Direct replacement for the original equipment control arm and ball joint assembly
• Pre-greased with the ball joint installed
• Aluminum control arm construction with rubber bushings
• Press-in ball joint mounting with threaded stud design
• Mounting hardware included
• Black finish for a clean OE-style appearance
• Regular grade, light suspension application

Product Details

This Dorman 524-520 assembly is engineered for front right lower suspension service where OE-style geometry and predictable handling matter. The design supports smooth ride quality and directional stability, making it a practical replacement for worn control arm and ball joint components on Mercedes-Benz A-Class, B-Class, and CLA models, as well as the INFINITI QX30. This part cross-references MOOG Chassis Products RK622911 for the same application.

Compatible With 2017-2019 INFINITI QX30, front right lower; 2013-2019 Mercedes-Benz B250, front right lower; 2013-2019 Mercedes-Benz CLA200, front right lower; 2013-2019 Mercedes-Benz CLA250, front right lower; 2013-2018 Mercedes-Benz A200, front right lower; 2017 Mercedes-Benz A250, front right lower; 2013-2014 Mercedes-Benz A250, front right lower; 2016-2017 Mercedes-Benz B250e, front right lower; 2015-2017 Mercedes-Benz CLA180, front right lower; 2013-2016 Mercedes-Benz A180, front right lower; 2014-2015 Mercedes-Benz B Electric Drive, front right lower; 2012-2015 Mercedes-Benz B180, front right lower.

What It Helps Address

• Clunking or looseness from a worn lower control arm assembly
• Uneven steering feel or reduced directional stability
• Suspension noise from deteriorated bushings or ball joint wear
• Front-end alignment issues caused by damaged suspension components
• Ride quality changes from fatigued OE-style control arm parts

Installation Notes

Verify vehicle fitment by year, make, model, and front right lower position before installation. The ball joint is installed and the assembly is pre-greased, which helps streamline replacement. Because this is a press-in style ball joint assembly with mounting hardware included, follow factory service procedures and torque specifications during installation.

Quality Assurance

Dorman evaluates this suspension control arm and ball joint assembly through an industry-focused validation process to support OE-style fit, ride quality, and handling consistency. Part number 524-520 is built as a direct replacement for specific applications and is intended to restore proper suspension function on the listed Mercedes-Benz and INFINITI vehicles.