Dorman 526-278 Suspension Control Arm and Ball Joint Assembly - Front Right Lower Forward

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 526-278 suspension control arm and ball joint assembly is engineered for select Mercedes-Benz models, including the Maybach S550, S560, S450, S500, and S500L. Designed to restore proper suspension geometry, this assembly combines durable steel construction with pre-installed components for reliable performance.

• Control arm made from robust steel with a black finish
• Includes rubber and steel bushings for enhanced durability
• Machined ball joint with threaded stud for secure mounting
• Pre-installed ball joint included for convenience
• One mounting hole with a diameter of 12.3 mm
• Control arm dimensions: maximum width 288.5 mm, maximum length 237 mm

Detailed Product Description

The Dorman 526-278 suspension control arm and ball joint assembly is a casting/forged type component designed to meet the specifications of Mercedes-Benz vehicles such as the Maybach S550, S560, S450, S500, and S500L. The control arm is constructed from steel, providing strength and resistance to wear. It features a black finish that helps protect against corrosion. The assembly includes both rubber and steel bushings, which work together to absorb road vibrations and maintain suspension stability.

The ball joint is machined and comes pre-installed with a threaded stud, ensuring a precise fit and secure attachment. This assembly is not adjustable but is designed to match the original equipment specifications for proper alignment and handling. The single mounting hole with a 12.3 mm diameter facilitates straightforward installation.

Common Applications and Problem Resolution

• Restores proper suspension alignment and handling on Mercedes-Benz Maybach S550 and S560 models
• Replaces worn or damaged control arms causing uneven tire wear or steering issues
• Addresses suspension noise or looseness due to failing bushings or ball joints
• Improves ride quality by maintaining correct suspension geometry
• Suitable for models including S450, S500, and S500L requiring a direct replacement control arm assembly

Installation Notes and Tips

Installation of the Dorman 526-278 control arm and ball joint assembly should be performed by a qualified technician familiar with Mercedes-Benz suspension systems. Ensure all mounting surfaces are clean and free of debris before installation. Torque specifications should follow manufacturer guidelines to maintain safety and performance. Since the ball joint is pre-installed, no additional assembly is required, simplifying the replacement process.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 526-278 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.