Dorman 521-494 Suspension Control Arm - Rear Center Forward Right

Overview of Dorman Suspension Control Arm 521-494

The Dorman 521-494 suspension control arm is engineered for select Mercedes-Benz models, including the CL63 AMG, S550, and S600. Constructed from durable aluminum with a coated black finish, this lateral link is designed to maintain precise suspension geometry and improve vehicle handling.

• Material: High-strength aluminum for lightweight durability
• Construction: Casting and forged for structural integrity
• Finish: Black coated surface for corrosion resistance
• Bushing: Includes one black rubber bushing with 14.3 mm inside diameter
• Ball Joint: Threaded stud type, welded mounting (ball joint not included)
• Length: Overall 262.5 mm for exact fitment
• Mounting: Press-in end type with bushing linkage end

Detailed Product Description

This Dorman suspension control arm (part number 521-494) is specifically designed for Mercedes-Benz vehicles such as the CL500, S63 AMG, and S450. The aluminum construction combines casting and forging processes to provide a balance of strength and weight savings. The black coated finish helps protect against rust and wear over time. It comes equipped with a single rubber bushing that measures 14.3 mm inside diameter and 92 mm in length, ensuring proper vibration dampening and suspension articulation. The ball joint mounting is welded with a threaded stud type, although the ball joint itself is not included. This lateral link is non-adjustable and intended for direct replacement to maintain factory suspension performance.

Common Applications and Problem Resolution

• Restores proper suspension alignment and handling on Mercedes-Benz CL and S-Class models
• Replaces worn or damaged control arms causing uneven tire wear
• Eliminates clunking or knocking noises from suspension movement
• Improves ride stability by addressing bushing deterioration
• Corrects suspension geometry after minor collision or impact damage

Installation Notes and Tips

Installation of the Dorman 521-494 control arm requires basic suspension knowledge and tools. Since the ball joint is not included, reuse the existing ball joint or source separately if needed. Ensure the bushing is properly seated in the press-in end during installation. Torque all mounting hardware to manufacturer specifications. Alignment check is recommended after replacement to maintain optimal handling characteristics.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-494 control arm undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.