Mercedes Vito W639 Seat Box Front Left N/S Seat Mount Base Bracket A6396601740

Mercedes Vito W639 Seat Box Front Left N/S Seat Mount Base Bracket is an original structural component designed for the installation of the driver's or front left passenger's seat. This robust seat box frame ensures stable seat positioning, proper load distribution, and a consistent connection to the vehicle floor, which is essential for both safety and interior ergonomics.

Specifications and technical data

• SKU: A6396601740
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6396601740
• Substitutable numbers: A6396601740, A 639 660 17 40, BG
• Location on the vehicle: Front, Left
• Category: Centre & Overhead Console Parts

Purpose and function in the Mercedes Vito W639

The described seat base is designed specifically for installation in the front left section of the Mercedes Vito W639 cabin. Its purpose is to precisely position the seat relative to the floor, center tunnel, and console, ensuring the factory geometry of the driver's or passenger's area is maintained, along with the correct operation of adjustment mechanisms and mounts.

This component belongs to the Console Parts group, which is responsible for the construction and layout of the central interior zone – including the areas around the seats, tunnel, and mounting bases. Proper fitment of this part helps avoid body stress, seat mounting play, and unwanted noises while driving.

Construction and mounting fitment

The seat base is in the form of a box-type bracket that works with the factory mounting points in the floor and the seat structure. Properly shaped surfaces and mounting holes allow for:

• stable bolting to the body in the front left cabin area,
• correct seating of the seat rails or frame,
• maintaining the proper height and angle of the seat.

As a result, after replacement, the factory seat position is maintained, which is important for driving comfort, visibility, seat belt operation, and any adjustment systems.

Characteristics of the used component

The offered seat base is a used part, sourced from a dismantled Mercedes vehicle. Such structural components, provided their material integrity is maintained, serve very well as an economical service solution in the event of mechanical damage, corrosion, or deformation of the original base in the vehicle.

Choosing an original part from dismantling allows you to maintain compliance with the vehicle's factory specifications while reducing repair costs compared to purchasing a new part. Before installation, it is recommended to perform a standard inspection of the mounting surfaces, threads, and the flatness of the contact area with the floor.

Installation and operational tips

When replacing the seat base in a Mercedes Vito W639, it is worth paying attention to a few technical aspects:

• cleaning and anti-corrosion protection of the mounting points in the floor,
• using appropriate bolts with the correct strength class,
• checking the parallelism of the seat rails after tightening the base,
• verifying the operation of the seat adjustment mechanisms after installation.

This approach helps maintain the stability of the seat structure and reduces the risk of subsequent play or squeaking during vehicle operation.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of the center console area and seat mounts in your Mercedes and need other items from the same group, such as additional brackets, supports, or trim covers, check out the available parts in the Mercedes Console Parts category.

To better take care of the durability of components sourced from dismantling, including interior structural elements, it is worth reading practical tips on maintenance and operation – you can find them in the article How to extend the life of used car parts?, which describes proven methods for protecting and servicing used components.