Mercedes W639 Jack Fixture Holder Mount Bracket Support A6395800022

Mercedes W639 Jack Fixture Holder Mount Bracket Support is an original structural component designed to provide stable support for the factory jack within the vehicle body. Thanks to its precise fit for the W639 platform, it ensures secure seating for the jack, which translates into safer vehicle lifting and more controlled maintenance work. This is a practical solution for users who want to maintain the factory functionality of the support points and preserve the integrity of the body structure.

Specifications and technical data

• SKU: A6395800022
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395800022
• Substitutable numbers: A6395800022, A 639 580 00 22, KZ
• Category: Other Interior Parts & Accessories

Purpose and function of the jack bracket

The presented bracket is a mounting component dedicated to the vehicle's support zone where the factory jack operates. Its purpose is to:

• provide a stable support point for the jack,
• transfer loads from the jack to the body structure,
• reduce the risk of improper vehicle support during lifting.

Thanks to a design consistent with factory solutions, the bracket works with the original geometry of the sills and floor, which facilitates maintaining the correct position of the jack relative to the body. This is particularly important for maintenance work performed outside of a workshop lift, where secure and repeatable positioning of the support point is crucial.

Original origin and fitment for Mercedes W639

The bracket was designed by the vehicle manufacturer for a specific platform, which results in an excellent fit for the construction of the Mercedes W639 commercial and passenger-commercial class. Factory mounting geometry allows for installation in the intended location without the need for modifications, and maintaining the original design concept of the body facilitates subsequent service activities.

An element of this type is particularly useful in situations where the factory bracket has suffered mechanical damage, corrosion, or deformation due to improper support. Replacing it with an original bracket allows for restoring the proper functionality of the lifting point and reducing the loads transferred to non-adapted parts of the body.

Characteristics of the used component

The offered bracket comes from disassembly and has the status of a used part. This means it is an OEM component that has already been in service in a vehicle but has retained the structural functionality necessary for further use. In practice, this allows combining the advantages of an original fit with a more favorable purchase cost compared to new replacements.

In the case of load-bearing and mounting elements, such as jack brackets, the use of a used OEM component is a frequently chosen solution in professional workshops, as it enables maintaining the consistency of the structure with the vehicle manufacturer's original specifications.

Application in service and body repairs

A functional jack bracket is important not only when changing wheels but also during many other service tasks performed "from below," where the vehicle is lifted with a jack. A properly functioning support point limits the risk of sill deformation, floor damage, or the jack slipping uncontrollably.

In practice, the installation of such an element is recommended, among other things, after body repairs in the area of the sills or floor, after side collisions, and in vehicles used intensively in fleets, where support points are frequently used. Restoring the factory bracket facilitates subsequent maintenance activities for both the user and the service center.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the chassis area in your Mercedes and need other elements from the same group, such as supports, brackets, or service mounts, check the available parts in the Other Mercedes category.

For a comparison of design solutions used in high-performance vehicles and a better understanding of the differences in chassis and load-bearing system construction, it is worth reading the material on our blog: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are interested in how the use of used OEM elements can affect vehicle downtime in the service and repair costs, the following article will be helpful: Availability of car parts off-the-shelf vs repair time – how do used OEM parts shorten workshop stays?, in which we discuss the practical aspects of selecting such components in daily workshop work.