URO 2173303900 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Reliable Suspension Control Arm for Mercedes-Benz Maybach Models

The URO Suspension Control Arm and Ball Joint Assembly (Part Number 2173303900) is engineered to meet the demands of Mercedes-Benz Maybach vehicles, including the S550, S560, S600, S650, S65 AMG, S450, S550e, and S600 models. Designed for the upper control arm position, this assembly ensures precise suspension performance and vehicle stability.

• Durable casting and forged construction for strength and longevity
• Pre-greased ball joint with a grooved stud for secure fitment
• Includes bushings and a black chloroprene rubber dust boot for protection
• Welded ball joint mounting type with steel housing and POM plastic cup bearing
• Compatible with upper control arm suspension systems on select Mercedes-Benz Maybach models

Detailed Product Features and Specifications

This URO suspension control arm assembly is built with a combination of casting and forging processes to provide a robust and reliable component for your vehicle's suspension system. The ball joint is pre-greased and features a grooved stud type, welded securely to the arm, ensuring consistent performance without the need for additional grease fittings. The included bushings help absorb road vibrations and maintain alignment, while the black chloroprene rubber dust boot protects the ball joint from dirt and moisture, extending its service life. The ball joint housing is made of steel, and the bearing uses a POM plastic cup for smooth articulation. This assembly is designed specifically for the upper control arm position and is not adjustable, with an adjustment range of 55 degrees.

Compatible Vehicles and Applications

• Mercedes-Benz Maybach S550
• Mercedes-Benz Maybach S560
• Mercedes-Benz Maybach S600
• Mercedes-Benz Maybach S650
• Mercedes-Benz S65 AMG
• Mercedes-Benz S450
• Mercedes-Benz S550e

This part is ideal for replacing worn or damaged upper suspension control arms on these models, helping to restore proper suspension geometry and improve handling.

Common Suspension Issues Addressed

• Excessive play or looseness in the upper control arm
• Uneven tire wear due to misalignment
• Clunking or knocking noises from the front suspension
• Reduced steering responsiveness or stability
• Damaged or torn dust boots leading to premature ball joint failure

Installation Notes and Tips

When installing the URO 2173303900 control arm assembly, ensure the vehicle is securely lifted and supported. Since mounting hardware is not included, retain original bolts and nuts or source replacements as needed. Verify the ball joint stud is properly seated and torqued to manufacturer specifications. The pre-greased ball joint eliminates the need for additional lubrication during installation. After installation, a professional wheel alignment is recommended to maintain optimal suspension performance.

Quality Assurance and Warranty

URO parts are manufactured to meet or exceed OEM standards, using quality materials such as steel and durable rubber components. While specific warranty details are not provided, URO products typically come with a limited warranty against defects in material and workmanship. Using this control arm assembly helps maintain the integrity of your Mercedes-Benz Maybach suspension system with reliable, engineered components.