Dorman 520-589 Suspension Control Arm - Rear Left Upper

Durable Suspension Control Arm for Buick and Chevrolet Models

The Dorman 520-589 suspension control arm is engineered to provide reliable performance for select Buick and Chevrolet vehicles. Designed with quality steel construction and a coated finish, this control arm ensures durability and resistance to corrosion for long-lasting use.

• Constructed from stamped steel for strength and durability
• Includes rubber bushings with black color for effective vibration dampening
• Coated black finish to resist rust and wear
• Bushing inside diameter of 14.3 mm and length of 92 mm for precise fit
• Bolt-in ball joint mounting type with threaded stud (ball joint not included)
• Compatible with Buick Impala, LaCrosse, Regal and Chevrolet Malibu, Malibu Limited
• Part number 520-589 for accurate identification and replacement

Product Details and Specifications

This suspension control arm from Dorman is designed with a stamped steel construction that balances strength and weight. The black coated finish protects the arm from corrosion, extending its service life. It comes equipped with a single rubber bushing that measures 39.6 mm in outside diameter and 14.3 mm inside diameter, providing effective noise and vibration isolation. The control arm length is 384.3 mm, with an overall length of 262.5 mm, ensuring proper alignment and fitment. The ball joint mounting is bolt-in style with a threaded stud, though the ball joint itself is not included. This part does not include mounting hardware or grease fittings, so those components must be sourced separately if needed.

Compatible Vehicles and Applications

This Dorman suspension control arm is compatible with the following vehicles:

• Buick Impala
• Buick LaCrosse
• Buick Regal
• Chevrolet Malibu
• Chevrolet Malibu Limited

It is designed to replace worn or damaged control arms that affect vehicle handling and suspension performance.

Common Issues Addressed by This Control Arm

• Excessive suspension noise or clunking during driving
• Uneven tire wear caused by misaligned suspension geometry
• Loose or unstable steering feel
• Vibration or harshness transmitted through the suspension
• Worn or damaged bushings leading to poor ride quality

Installation Notes and Tips

Installation of the Dorman 520-589 control arm requires basic suspension knowledge and tools. Since the ball joint is not included, ensure the existing ball joint is inspected and replaced if necessary. Mounting hardware is not included, so retain or replace bolts and nuts as needed. Proper torque specifications should be followed to maintain suspension integrity. It is recommended to have a professional alignment performed after installation to ensure optimal vehicle handling.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 520-589 control arm undergoes 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 Dorman’s official documentation for exact warranty terms.