Dorman 521-120 Suspension Control Arm - Rear Upper

Overview of Dorman Suspension Control Arm 521-120

The Dorman Suspension Control Arm 521-120 is designed specifically for Jeep Wrangler and Wrangler JK models. Constructed from durable steel with a coated black finish, this control arm offers reliable performance and longevity for your vehicle's suspension system.

• Made from stamped steel for strength and durability
• Black coated finish to resist corrosion
• Includes rubber bushing with black color for vibration dampening
• Overall length of 262.5 mm for precise fitment
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Press-in end type with bushing linkage end
• Compatible with Jeep Wrangler and Wrangler JK models

Detailed Product Description

This suspension control arm from Dorman is engineered to meet the specifications of Jeep Wrangler and Wrangler JK vehicles. The stamped steel construction ensures a robust frame capable of handling the stresses of off-road and on-road driving. The black coated finish provides protection against rust and environmental wear. The control arm includes a rubber bushing with a 14.3 mm inside diameter and 39.6 mm outside diameter, designed to absorb shocks and reduce noise. The ball joint mounting is welded with a threaded stud type, although the ball joint itself is not included, allowing for customization or replacement as needed. With an overall length of 262.5 mm, this control arm fits precisely to maintain proper suspension geometry.

Common Applications and Problem Solving

• Replaces worn or damaged suspension control arms on Jeep Wrangler and Wrangler JK
• Addresses issues with suspension noise caused by deteriorated bushings
• Restores proper wheel alignment and handling performance
• Eliminates excessive vibration and improves ride comfort
• Helps correct uneven tire wear related to faulty control arms

Installation Notes and Tips

Installation of the Dorman 521-120 control arm requires basic suspension knowledge and tools. Since the ball joint is not included, ensure compatibility with your existing ball joint or purchase separately if needed. The control arm comes with bushings pre-installed, but mounting hardware is not included, so reuse existing hardware or acquire new bolts and nuts as necessary. Proper torque specifications should be followed to maintain safety and performance. It is recommended to have a professional alignment performed after installation to ensure optimal suspension geometry.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards, providing dependable performance for Jeep Wrangler and Wrangler JK vehicles. The 521-120 control arm features a coated finish to resist corrosion and extend service life. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.