Dorman 520-478 Suspension Control Arm - Front Right Lower

Overview of Dorman Suspension Control Arm 520-478

The Dorman Suspension Control Arm 520-478 is engineered for Subaru vehicles including the Baja, Forester, Impreza, Legacy, and Outback models. Designed with durable steel construction and a coated black finish, this control arm provides reliable suspension performance and longevity.

• Constructed from high-strength steel with casting and forging processes
• Includes a rubber bushing with black color and precise dimensions for fitment
• Overall length of 262.5 mm for accurate replacement
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Coated finish to resist corrosion and wear
• Press-in end type with bushing linkage end for secure installation
• Includes one rubber bushing but excludes ball joint and mounting hardware

Detailed Product Description

This suspension control arm from Dorman is designed to restore proper suspension geometry and handling characteristics on compatible Subaru models. The steel construction combines casting and forging techniques to ensure strength and durability under road stress. The black coated finish helps protect against rust and environmental damage. The control arm features a single rubber bushing with a 14.3 mm inside diameter and 39.6 mm outside diameter, providing effective vibration dampening and noise reduction. The welded ball joint mounting type with a threaded stud allows for secure attachment of the ball joint, although the ball joint itself is not included with this part. Measuring 262.5 mm in length, this control arm matches OEM specifications for a direct fit replacement.

Common Applications and Issues Addressed

• Restores suspension alignment and handling on Subaru Baja, Forester, Impreza, Legacy, and Outback
• Replaces worn or damaged control arms causing uneven tire wear
• Eliminates clunking or knocking noises from suspension movement
• Improves vehicle stability and steering response
• Addresses bushing deterioration that leads to excessive play or vibration

Installation Notes and Tips

• Ensure compatibility with your specific Subaru model and year before installation
• Ball joint and mounting hardware are not included and must be sourced separately
• Use proper tools to press in the bushing and secure the control arm
• Inspect related suspension components during installation for wear or damage
• Professional installation is recommended to maintain suspension alignment and safety

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-478 control arm undergoes rigorous quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.