Pivot Bearing Mercedes V177 Rear Seat Left N/S Backrest Inner Pivot Bracket

Pivot Bearing Mercedes V177 Rear Seat Left N/S Backrest Inner Pivot Bracket is an original mounting component designed for the rear left seat section in the V177 body style. This specialized component ensures stable, secure, and precise seat mounting, which is crucial for comfort and the proper operation of the seating system.

Specifications and technical data

• SKU: A1779203904
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779203904
• Substitutable numbers: A1779203904, A 177 920 39 04, A1779200000, A 177 920 00 00
• Location on the vehicle: Rear, Left
• Category: Additional Seat Parts

Purpose and function of the mechanism

The presented seat mounting bracket mechanism has been designed for the rear left side of the vehicle, making it a perfect fit for the passenger area construction. It is responsible for the stable seating of the bench in the factory mounting points, which reduces unwanted play, squeaking, and seat movement while driving.

The element belongs to the Other seat parts group, which means it plays a specialized role in the seat mounting system, complementing rails, hinges, and other structural components. Thanks to its dedicated placement in the rear left part of the body, the mechanism works with factory mounting points and maintains compatibility with the original seat geometry.

Benefits of using an original Mercedes component

Using an original seat mounting bracket mechanism in a Mercedes vehicle allows you to maintain structural interior consistency and predictable seat behavior under all operating conditions. The most important advantages include:

• maintaining the factory position of the rear bench on the left side,
• reducing vibrations and unwanted noises in the seating area,
• compatibility with factory mounting points of the V177 body,
• easier removal and reinstallation of the seat during service work.

Thanks to this mechanism, it is possible to restore the correct seat fitment after a collision, bodywork repairs, or upholstery replacement, without the need for non-factory solutions. This is especially important when you care about maintaining the original interior construction and the proper operation of safety systems associated with the seats.

Mounting characteristics and application

The mechanism is intended for use in the rear part of the vehicle, on the left side, which facilitates the identification of the correct mounting location during repair. The mounting system is designed to work with factory seat and body components, which translates into a predictable installation process in workshop conditions.

In practice, this means that when properly attached, the element ensures:

• proper fitment of the seat to the body structure,
• maintenance of the correct seat geometry relative to the backrests and floor,
• stability during braking, acceleration, and driving over uneven surfaces.

Such properties are particularly important in vehicles used intensively – both in daily family use and in fleet applications, where reliable seat mounting has a direct impact on passenger comfort and safety.

Condition of the element and practical aspects

The offered mechanism comes from a group of used components, which allows for economical repair while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial when you want to combine reasonable costs with maintaining the factory seat system construction.

Before installation, standard workshop verification is recommended, including checking the mounting points, correct alignment relative to the seat, and checking the mechanical operation after assembly. A properly selected and installed element allows you to restore full functionality of the rear left seat section without the need for body modifications.

Expanding the seating system and selecting other elements

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

When selecting used mounting components for the interior, it is worth paying attention to structural compatibility, mechanical condition, and the origin of the parts. Practical tips on the safe selection of used elements and avoiding common mistakes can be found in the article Buying used car parts • Most common mistakes when choosing tuning parts, which helps you plan purchases consciously and optimize repair costs.