Dorman 521-492 Suspension Control Arm - Rear Upper Forward

Overview of Dorman Suspension Control Arm 521-492

The Dorman Suspension Control Arm 521-492 is engineered for reliable suspension performance on select Mercedes-Benz models. Designed with durable steel construction and a coated finish, this control arm supports stable handling and ride quality for vehicles like the Mercedes-Benz 300E and E55 AMG.

• Constructed from high-strength steel with casting and forging methods
• Black coated finish for corrosion resistance
• Includes a rubber bushing with black color and precise dimensions (14.3 mm inside diameter, 39.6 mm outside diameter)
• Overall length of 262.5 mm for exact fitment
• Welded ball joint mounting type with threaded stud (ball joint not included)
• Press-in end type with bushing linkage end
• Compatible with multiple Mercedes-Benz models including 190E, 300D, 500SL, and SLK230

Detailed Product Description

This Dorman suspension control arm (part number 521-492) is designed to restore proper suspension geometry and improve vehicle stability. The steel construction combines casting and forging techniques to provide strength and durability under road stress. The black coated finish helps resist corrosion, extending the service life of the control arm. It comes equipped with a single rubber bushing that cushions suspension movement and reduces noise and vibration. The welded ball joint mounting type with a threaded stud allows for secure attachment, although the ball joint itself is not included. With an overall length of 262.5 mm, this control arm fits a range of Mercedes-Benz vehicles such as the 400E, C280, and SL500, ensuring precise replacement and alignment.

Compatible Vehicles and Applications

• Mercedes-Benz 190E, 300CE, 300D, 300E, 300TD, 300TE
• Mercedes-Benz 400E, 500E, 500SL, 600SL
• Mercedes-Benz C36 AMG, C220, C230, C280
• Mercedes-Benz E55 AMG, E300, E320, E420, E430, E500
• Mercedes-Benz SL320, SL500, SL600, SLK230

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Excessive suspension noise or vibration
• Misalignment leading to uneven tire wear
• Loose or compromised ball joint mounting points
• Corrosion or structural fatigue in original control arm

Installation Notes and Tips

• Ensure vehicle is securely lifted and supported before removal
• Inspect ball joint and mounting hardware; replace if necessary as they are not included
• Use proper torque specifications for mounting bolts to maintain suspension integrity
• Alignment check is recommended after installation to ensure proper handling
• Grease fitting is not included; no lubrication required for this control arm

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 521-492 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 material and workmanship to provide confidence in your purchase.