Dorman 527-057 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

OE-Style Front Left Lower Control Arm

Dorman 527-057 is a direct replacement suspension control arm and ball joint assembly for specific Ram applications. It is built for the front left lower position and engineered to restore smooth ride quality, directional stability, and predictable handling on Ram 1500 and Ram 1500 Classic trucks.

Compatible with 2013-2018 Ram 1500, front left lower, and 2019-2024 Ram 1500 Classic, front left lower. This part cross-references MOOG Chassis Products RK623101 for the same application.

Key Features

• Direct replacement for the original equipment control arm and ball joint assembly
• Stamped steel control arm construction for standard replacement service
• Pre-greased design with no grease fitting included
• Ball joint included and installed with a threaded stud and machined mounting type
• Rubber bushings included for suspension isolation
• Mounting hardware included
• Gray finish
• Part number: 527-057

Detailed Description

Dorman 527-057 is engineered as an OE-style suspension control arm assembly for the front left lower position on Ram 1500 and Ram 1500 Classic models. The stamped steel arm, rubber bushings, and pre-installed ball joint are selected to match the original suspension layout and support consistent steering response. The assembly is pre-greased and uses a threaded ball joint stud with a 16 mm ball joint thread diameter for a direct-fit replacement approach. For buyers searching for a Ram 1500 front left lower control arm, Ram 1500 Classic lower control arm, or Dorman 527-057 suspension control arm and ball joint assembly, this part is built to address wear at a critical front suspension pivot point.

What It Helps Fix

• Clunking or looseness from a worn lower control arm assembly
• Uneven steering feel or wandering at the front end
• Excessive play caused by worn ball joint or bushings
• Directional instability during braking or lane changes
• Suspension noise from deteriorated OE-style components

Installation Notes and Tips

Install in the front left lower position only on the listed Ram applications. Verify mounting hole diameter, ball joint thread size, and suspension orientation before installation. Because the assembly is pre-greased and includes the ball joint and bushings, it is suited for replacing a worn OE unit rather than rebuilding the original arm. Always confirm alignment after installation on Ram 1500 and Ram 1500 Classic front suspension service.

Quality Assurance

Dorman uses an industry-leading evaluation process for this suspension control arm and ball joint assembly to help support proper ride quality, directional stability, and predictable dynamics. Part number 527-057 is built as a standard replacement component for specific vehicle applications.