Mercedes W164 Gas Pressurized Spring Strut Tailgate Trunk Right O/S A1647400445

The Mercedes W164 Rear Right Tailgate Strut Actuator is an original part from the Tailgates & Rear category, designed for precise operation on the right side of the vehicle. It provides stable support for the tailgate, controlling its movement in a predictable and safe manner, which translates to convenience in daily use and proper functioning of the entire lifting system.

Specifications and technical data

• SKU: A1647400445
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647400445
• Substitutable numbers: A1647400445, A 164 740 04 45
• Location on the vehicle: Right
• Category: Boot & Hatch Lids

Actuator Purpose and Function

The tailgate strut actuator in the Mercedes W164 model is responsible for the controlled opening and closing of the tailgate on the right side of the vehicle. This component stabilizes the tailgate's movement, limits sudden drops, and assists in lifting it, thereby reducing stress on the hinges and improving the comfort of tailgate operation.

Thanks to the appropriate selection of its operating characteristics, the actuator works in conjunction with the body structure, ensuring adequate support force and smooth movement throughout the full range of tailgate opening.

Construction and Performance Parameters

The presented actuator is a component specifically designed for the tailgate system in the Mercedes W164, taking into account the geometry of the hinges and the weight of the tailgate. Appropriately selected operating pressure and damping characteristics allow for:

• controlled opening of the tailgate without jerking,
• stable holding of the tailgate in the open position,
• reduction of excessive loads on the mountings and bodywork.

Its placement on the right side of the vehicle guarantees compatibility with the factory mounting system, which facilitates replacement and minimizes the risk of improper fit.

Installation and Compatibility

The actuator is designed for installation in factory mounting points, allowing for installation without interfering with the body structure. In practice, this means:

• maintaining the original operating geometry of the tailgate,
• no need for modifications to mountings or additional adapters,
• consistency with other tailgate system components, such as hinges or seals.

As a part from the Tailgates & Rear category, it is dedicated for operation in this specific body area, which translates to predictable performance during daily vehicle use.

Condition and Benefits of Use

The offered actuator is a used part, allowing for an economical replacement while maintaining compliance with factory specifications. Choosing an original component of this type offers:

• certainty of fit with the tailgate structure,
• preservation of the operating characteristics intended by the manufacturer,
• reduction of the risk of excessive load on hinges and mountings.

Using the correct actuator on the right side of the vehicle improves tailgate operation ergonomics, increases user convenience, and contributes to the durability of the entire lifting system.

Related Products and Technical Knowledge

If you are looking for other parts from the Tailgates & Rear category dedicated to the Mercedes brand, check out our offer on Mercedes Tailgates & Rear to select complete solutions for your car. For a comparison of the operating characteristics of different engine units and secondary market maintenance costs, you can also read the article BMW N47 vs M57 / M57N / M57N2 – Ranking of Legendary Diesels, which helps to better understand the impact of part selection on long-term vehicle ownership costs.