Mercedes ML W163 Gas Pressure Strut Tailgate Boot Trunk A1637400345

Mercedes ML W163 Gas Pressure Strut Tailgate Boot Trunk is an original tailgate support component, designed specifically for the ML W163 model family. This used gas strut ensures stable, controlled opening and closing of the trunk lid, improving daily comfort and operational safety. Thanks to its factory origin from the Mercedes brand, the correct operating parameters and fitment to the body structure are maintained.

Specifications and technical data

• SKU: A1637400345
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1637400345
• Substitutable numbers: A1637400345, A 163 740 03 45
• Category: Boot & Hatch Lids

Purpose and function in the vehicle

The trunk gas strut in the Mercedes ML W163 is responsible for the controlled lifting and holding of the tailgate in a stable working position. A correctly selected component:

• prevents the tailgate from slamming shut,
• facilitates opening the trunk without excessive force,
• stabilizes the position of the tailgate during loading and unloading,
• reduces stress on hinges and mounting elements.

As a result, daily use of the cargo area remains convenient, and the risk of the tailgate accidentally falling is significantly reduced.

Benefits of using an original Mercedes component

Choosing a trunk gas strut from the original Mercedes line means maintaining the factory operating characteristics of the tailgate. A component from the same design group as the original equipment ensures:

• properly selected damping and support force,
• compatibility with factory mounting points on the body and tailgate,
• consistency with other components in the rear body area.

A used but functional gas strut is a reasonable compromise between cost and functionality, especially for vehicles used daily, where reliability and proper operation of the trunk mechanisms are essential.

Installation and operational characteristics

The trunk gas strut from the ML W163 series is designed for installation in factory sockets, allowing for a near plug-and-play replacement without the need for body modifications. In practice, this means:

• maintaining the original geometry of the tailgate operation,
• no need for additional brackets or modifications,
• the possibility of replacement in pairs or individually – according to the adopted service strategy.

Using a component from the same model family reduces the risk of incorrect length or force characteristics, which is particularly important for the durability of the hinges and user comfort.

Application in the tailgate area

The gas strut belongs to the group of components responsible for the operation of the tailgate and trunk. Together with the hinges, lock, and seals, it forms a cohesive system that affects:

• convenience of access to the cargo area,
• safety during parking and loading,
• overall ergonomics of the rear body section.

Regular inspection of the trunk gas struts in the Mercedes ML W163 helps avoid situations where the tailgate does not stay in the upper position or requires excessive force to open.

If you are planning a comprehensive repair or upgrade of the rear zone in your Mercedes and need other components from the same group, such as actuators, hinges, or tailgate locks, check the available parts in the Mercedes Tailgates and Rear Parts category.

Choosing a used trunk gas strut vs. vehicle suspension

When choosing a used trunk gas strut, it is worth considering the general condition of the suspension and body, as the way the vehicle is used affects the loads acting on the rear of the body. For drivers analyzing the differences between factory configurations and more dynamic settings, comparative material regarding the design and operation of suspension components may be helpful – especially in the context of purchasing used parts. More information can be found in the article Factory vs. sports suspension – differences in design and is it worth buying used suspension parts?.

Summary

Mercedes ML W163 Gas Pressure Strut Tailgate Boot Trunk is a practical solution for users who want to restore the proper operation of the tailgate while maintaining factory fitment. A used, original component from the Tailgates and Rear Parts group allows you to maintain the comfort of operating the rear of the vehicle and reduce the risk of uncontrolled tailgate falling, which directly translates into the convenience and safety of daily use of the Mercedes ML W163.