Mercedes W207 E220 CDI Front Right O/S Suspension Leg Brake Disc Wheel Hub

The Mercedes W207 E220 CDI Front Right Knuckle with Shock Absorber is a complete solution for the front suspension, combining the steering knuckle with the shock absorber on the passenger side. This component is designed for the front axle, allowing for precise geometry restoration and the return of stable vehicle handling. Thanks to its factory design, it ensures consistent performance of the drivetrain and predictable vehicle behavior in everyday use.

Specifications and technical data

• SKU: A2043202866-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2043202866
• Substitutable numbers: A2043202866, A 204 320 28 66, A2043320201, A 204 332 02 01, A2044213681, A 204 421 36 81, A0004213012, A 000 421 30 12
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and Vehicle Placement

The presented knuckle and shock absorber set is designed for installation on the front right axle of the vehicle. Its placement on the front, right side is crucial for correct wheel alignment, steering system operation, and effective damping of road surface vibrations.

Combining the steering knuckle and shock absorber into a single unit simplifies the service process, reduces the risk of installation errors, and allows for quicker replacement of the entire suspension sub-assembly.

Technical and Functional Characteristics

The steering knuckle integrated with the shock absorber is responsible for several key tasks in the drivetrain:

• guiding the wheel vertically and horizontally,
• transferring loads from the road surface to the body,
• interacting with the braking and steering systems,
• damping vibrations and stabilizing the driving path.

Thanks to its design consistent with solutions used by Mercedes, the correct suspension geometry is maintained, which translates to predictable vehicle behavior, even tire wear, and proper functioning of driver assistance systems.

Application in the Suspension System

This element belongs to the group of Suspension Replacement Kits, meaning it is intended for comprehensive servicing of the front part of the drivetrain. Replacing the complete knuckle and shock absorber assembly is particularly recommended in cases of mechanical damage, excessive wear, or after a collision, as well as when a noticeable deterioration in driving comfort and vehicle stability occurs.

This service approach helps to reduce potential sources of play, simplify diagnostics, and ensure consistent suspension performance parameters on the right side compared to the left.

Benefits of Using an Original Used Component

An original Mercedes component, despite being a used part, retains its factory design and fit for the specific model. In practice, this means:

• secure fit with other suspension and body elements,
• preservation of the designed shock absorber performance characteristics,
• compatibility with standard mountings and accessories.

For the user, this translates to more predictable installation, reduced need for modifications, and the ability to restore the vehicle's original driving characteristics.

Technical Support and Additional Materials

To better understand the role of the shock absorber and steering knuckle in the entire drivetrain and the relationships between individual components, it is worth consulting the guide: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This article helps assess the condition of the suspension and plan service work consciously.

If you are planning a comprehensive repair or upgrade of the front suspension area in your Mercedes and need other parts from the same group, such as struts, knuckles, or complete suspension modules, check the available parts in the Mercedes Suspension Replacement Kits category.

Additionally, when deciding on used components, the material discussing the differences between standard and sports solutions and part selection issues may be helpful: Standard vs. Sport Suspension – Construction Differences and Used Part Selection.