Mercedes-Benz M W163 Rear Left Right N/O/S Shock Absorber Spring Strut

Mercedes-Benz M W163 Rear Left Right N/O/S Shock Absorber Spring Strut is a factory suspension component designed for the left or right side of the rear axle. Specifically engineered for the W163 architecture, it ensures consistent body control, cornering stability, and predictable vehicle behavior during braking and acceleration.

Specifications and technical data

• SKU: A1633201813
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1633201813
• Substitutable numbers: A1633201813, A 163 320 18 13, BG
• Location on the vehicle: Rear, Right, Left
• Category: Shocks, Struts & Assemblies

Purpose and function in the Mercedes W163 suspension

The presented item is a complete suspension strut (shock absorber with spring), dedicated to the rear axle of the vehicle, with the possibility of installation on either the left or right side. This configuration allows for maintaining suspension symmetry, which translates into predictable car reactions in various road conditions.

In the M-Class W163 suspension system, the shock absorber strut is responsible for:

• damping vibrations caused by road surface irregularities,
• maintaining constant tire-to-road contact,
• stabilizing the body during load changes,
• reducing body roll in corners and during emergency maneuvers.

By maintaining the original mounting geometry, this component works with factory suspension mounting points, which facilitates service and reduces the risk of incorrect rear axle kinematics adjustment.

Technical characteristics of the shock absorber strut

The rear shock absorber strut for the W163 combines a coil spring and a hydraulic damper in one unit, which simplifies installation and service. This design ensures:

• consistent performance of the spring and damping element,
• better control over suspension travel under heavy loads,
• stable vehicle handling both off-road and on paved roads.

Placement on the vehicle is limited to the rear axle, with the option to be used on both sides, allowing for replacement individually or in pairs – depending on the condition of other suspension components.

Condition, origin, and fitment

The offered strut belongs to the Shock absorbers and struts group and is an original component intended for Mercedes brand vehicles. The used condition of the part makes it a cost-effective solution while maintaining structural compatibility with the factory W163 suspension system.

For proper selection of the component, it is worth paying attention to:

• compatibility with the body version and suspension system of the specific vehicle,
• planned configuration – individual or axle-wide replacement,
• general condition of other rear axle components (control arms, bushings, mounts).

Benefits of using an original rear shock absorber strut

Using a dedicated shock absorber strut in the Mercedes M-Class W163 allows for maintaining driving parameters close to factory specifications. Key advantages include:

• maintaining the designed damping characteristics, essential when driving with a load and off-road,
• proper cooperation with standard suspension and body components,
• reducing the risk of incorrect rear axle geometry settings.

For users expecting predictable handling and stability during daily operation, choosing an original shock absorber strut is a technically safe solution consistent with the vehicle's design assumptions.

Technical support and additional information

To better understand the role of shock absorbers in driving safety and the impact of their wear on vehicle handling, it is worth reading the guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. The article discusses practical aspects of diagnostics and operation of suspension components in popular car models.

If you are planning a comprehensive repair or upgrade of the rear axle suspension area in your Mercedes and need other elements from the same group, such as additional struts, complete assemblies, or other shock absorber configurations, check the available parts in the Mercedes shock absorbers and struts category.