Dorman 520-321 Suspension Control Arm - Rear Left Lower or Rear Right Lower

Durable Suspension Control Arm for Jeep Grand Cherokee

The Dorman 520-321 suspension control arm is engineered to provide reliable performance for Jeep Grand Cherokee models. Constructed from steel with a coated black finish, this control arm offers strength and corrosion resistance for long-lasting use.

• Made from durable steel with a coated black finish for corrosion protection
• Includes a rubber bushing with a black color and precise dimensions for optimal fit
• Casting and forged construction ensures structural integrity
• Threaded ball joint stud type with welded mounting for secure attachment (ball joint not included)
• Compatible with Jeep Grand Cherokee suspension systems requiring a 262.5 mm length control arm

Detailed Product Features and Specifications

The Dorman 520-321 suspension control arm features a robust steel construction combining casting and forging methods to maintain strength under stress. The black coated finish helps resist rust and wear from road conditions. This control arm includes a single rubber bushing with an inside diameter of 14.3 mm, an outside diameter of 39.6 mm, and a length of 92 mm, designed to absorb vibrations and reduce noise. The ball joint mounting type is welded, and the ball joint stud is threaded, though the ball joint itself is not included. The control arm measures 262.5 mm in overall length and uses a press-in type for the second end, with linkage end type being bushing. Mounting hardware and brackets are not included with this part.

Compatible Applications and Common Repair Uses

• Replacement for worn or damaged suspension control arms on Jeep Grand Cherokee vehicles
• Addresses issues such as uneven tire wear caused by faulty control arms
• Helps correct steering instability and improve vehicle handling
• Reduces suspension noise and vibrations from deteriorated bushings
• Restores proper suspension geometry for safer driving conditions

Installation Notes and Tips

When installing the Dorman 520-321 control arm, ensure the vehicle is securely lifted and supported. Since the ball joint is not included, verify compatibility with your existing ball joint or replace it separately if needed. Use appropriate tools to press in the bushing end and secure the control arm to the suspension assembly. Torque all fasteners to manufacturer specifications. Because mounting hardware is not included, retain or replace bolts and brackets as necessary during installation.

Quality Assurance and Warranty Information

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 520-321 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 official Dorman documentation for exact warranty terms.