Description
Mercedes W164 Gas Pressurized Spring Strut Tailgate Trunk Set is a practical solution for users who want to restore the proper operation of the tailgate in their SUV. The set of two components provides stable support for the trunk lid, improving daily comfort and safety during loading. It is a functional choice for drivers expecting a proven design and reliable operation of the tailgate lifting mechanism.
Specifications and technical data
- SKU: A1647400445-1
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A1647400445
- Substitutable numbers: A1647400445, A 164 740 04 45, A1647400345, A 164 740 03 45
- Location on the vehicle: Right
- Category: Boot & Hatch Lids
Application and function in the vehicle
The presented set is designed for the tailgate in Mercedes M-Class W164 generation models. These components are responsible for controlled opening and holding the tailgate in a stable position, which is important for both user convenience and protecting the hinges and lock from excessive loads.
The gas springs operate on the right side of the vehicle in the tailgate system, working in conjunction with other hinge and mounting components. A properly selected set reduces the risk of the tailgate falling, makes it easier to lift, and reduces the load during manual opening.
Construction and technical characteristics
The gas struts for the tailgate in the Mercedes W164 use gas pressure to generate lifting force. Thanks to this, the movement of the tailgate is smooth, and the stop in the upper position is stable. The design is based on a cylinder with a piston and a precisely selected seal, which allows for multiple work cycles under typical operating conditions.
In practice, this means:
- controlled opening and closing of the tailgate,
- reduced load on hinges and mounts,
- reduced risk of the lid falling suddenly,
- more comfortable access to the cargo area.
The fitment to a specific body generation ensures that the geometry and stroke of the springs are consistent with the structural requirements of the rear body, which translates into predictable tailgate behavior throughout the full range of motion.
Benefits of installing the gas spring set
Using a complete set of two gas springs in the tailgate allows for even distribution of forces and maintains the proper operation of the mechanism. Replacing both elements at the same time is particularly beneficial when the existing struts have lost some of their performance.
The most important advantages of this solution include:
- improved loading ergonomics – the tailgate stays in the upper position without the need for support,
- increased user safety when working around the trunk,
- reduction of noise and vibrations resulting from the improper operation of worn components,
- restoration of the factory operation of the tailgate.
The product comes from the Tailgates and rear parts group, which means it is designed to work with other rear body components – hinges, locks, and interior covers.
Fitment, condition, and installation
The set is intended for Mercedes vehicles and is a solution dedicated to the M-Class W164 generation SUV body. The components are salvaged, which allows for maintaining the original operating characteristics and compatibility with factory mounting points. The used nature of the parts makes this a reasonable cost-effective alternative to new components while maintaining proper structural fitment.
Installing gas springs in the tailgate usually does not require body modifications – it is done in the existing mounting sockets. It is recommended to install them in pairs to ensure even operation on both sides of the tailgate and consistent load on the hinges.
Expanding the Mercedes tailgate system
If you are planning a comprehensive repair or modernization of the rear body area in your Mercedes and need other elements from the same group, such as tailgate hinges, locks, or additional brackets, check the available parts in the Mercedes Tailgates and rear parts category.
If you are interested in a broader context of using original, used components in premium cars and want to better understand how they influence the preservation of the brand’s character, it is worth reading the article Audi and pure emotion – how used parts help maintain the brand’s DNA, which shows the importance of properly selected components in premium segment vehicles.
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