Mercedes ML W164 Rear Shock Absorber Strut Damper Left Right N/O/S A1643202431

The Rear Shock Absorber with Spring (Suspension Strut) for Mercedes-Benz M-Class ML W164 is a factory suspension component designed for the left or right side of the rear axle. Specifically engineered for the ML W164 series, it ensures consistent body control, predictable vehicle response, and stable damping of uneven surfaces during daily use.

Specifications and technical data

• SKU: A1643202431-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643202431
• Substitutable numbers: A1643202431, A 164 320 24 31, A1643201631, A 164 320 16 31, A1643201531, A 164 320 15 31, A1643200931, A 164 320 09 31, BG
• Location on the vehicle: Rear, Right, Left
• Part type: Shock
• Category: Shocks, Struts & Assemblies

Purpose and Function in Suspension

The presented suspension strut belongs to the Shock Absorbers and Struts category and operates at the rear of the vehicle, serving both the right and left sides. It is responsible for controlled vibration damping, maintaining tire contact with the road, and stabilizing the body during acceleration, braking, and cornering. Thanks to its design tailored to the ML W164's characteristics, the shock absorber with spring supports proper load distribution, which translates to predictable vehicle behavior when fully loaded and during higher-speed driving.

Compatibility and Replacement Numbers

This component has been developed as an original suspension strut for selected versions of the Mercedes-Benz M-Class ML W164 generation. It features a dedicated OEM part number and associated replacement numbers, facilitating the selection of the correct component when replacing the factory shock absorber. The presence of reference numbers allows for the safe use of the part in place of several factory variants, without altering the suspension geometry. Before purchasing, it is advisable to compare the markings with the currently installed component or the vehicle's service documentation to confirm full compatibility with your specific car configuration.

Installation and Operational Characteristics

The rear suspension strut for the ML W164 is designed for installation in factory mounting points, which helps maintain the original handling characteristics. Its placement on the vehicle covers the rear axle, with the possibility of use on either the left or right side, simplifying part selection for single-sided or paired replacements. A properly selected and functional shock absorber with spring contributes to:

• body stability during maneuvers and driving over uneven surfaces,
• more effective transfer of braking forces to the road,
• reduced vehicle roll and dive,
• more even tire wear.

Part Condition and Service Application

The offered suspension strut is a used part, making it a sensible choice for service repairs where maintaining the factory construction at controlled costs is a priority. This type of component is suitable for both replacing a damaged shock absorber after a mechanical failure and for gradual renovation of the suspension system in mature ML W164 models. Due to the importance of the suspension for safety, installation in a specialized service center is recommended, along with a simultaneous inspection of other rear axle components (including bushings, control arms, and spring mounts).

Technical Support and Additional Information

If you are planning a comprehensive repair or upgrade of the rear suspension area on your Mercedes and need other parts from the same category, such as additional struts, complete shock absorbers, or strut assemblies, check the available parts in the Mercedes Shock Absorbers and Struts category. To better understand the role of shock absorbers in the entire suspension system and the relationships between struts, control arms, and stabilizers, it is worth consulting the guide: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This will help you more easily plan the scope of service work and select the appropriate set of parts for your car.