Mercedes W639 Tailgate Hinge Top Right O/S Trunk Brilliant Silver A6397400437

Mercedes W639 Tailgate Hinge Top Right O/S Trunk Brilliant Silver is an original body component from the Tailgates and rear parts group, designed for the right side of the vehicle's rear area. The hinge ensures stable operation of the tailgate, proper maintenance of geometry, and secure closing, which translates into comfort in daily use. This used, factory-made Mercedes component is a sensible choice for body repairs when fitment and predictable long-term performance are essential.

Specifications and technical data

• SKU: A6397400437-BRS
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397400437
• Substitutable numbers: A6397400437, A 639 740 04 37, KD
• Location on the vehicle: Right
• Color: Brilliant Silver Metallic - 9744
• Category: Boot & Hatch Lids

Purpose and function of the hinge

The presented hinge operates in the upper part of the right side of the tailgate, responsible for its guidance during opening and closing. A properly selected component in this location:

• maintains the correct position of the door relative to the body,
• reduces the risk of edges rubbing against the bodywork,
• stabilizes the operation of the lock and actuators,
• helps maintain the tightness of the rear part of the vehicle.

Thanks to this, replacing a worn or damaged hinge with an original component allows for restoring the correct operation of the tailgate without the need for interference with other structural elements.

Original Mercedes component – fitment and compatibility

As a part designed for the Mercedes W639 family, the hinge has been engineered for specific mounting points and the geometry of the rear body area. This means:

• factory-standard mounting hole spacing,
• preservation of the correct tailgate pivot axis,
• consistency with other hinge and lock system elements.

In practice, this translates into easier installation and no need for modifications or adjustments to the part. The original origin also promotes compliance with factory body tolerances, which is important for precise setting of gaps and body lines.

Brilliant Silver Metallic color – visual aspect

The hinge is finished in Brilliant Silver Metallic, which is significant both aesthetically and practically. For vehicles in a similar paint tone, this reduces the need for additional painting of the component after installation. Even with a different body color, the factory metallic finish provides a neutral, orderly appearance within the trunk recess and good surface protection against external factors.

Characteristics of the used component

As a used part, the hinge retains the original design and operating parameters intended by the manufacturer. This is a solution that allows for balancing repair costs while maintaining the factory performance characteristics of the tailgate mechanism. In many cases, installing a verified, used body component is more predictable than using aftermarket replacements with uncertain geometry or build quality.

Mercedes tailgates and rear parts – expansion and repairs

If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other elements from the same group, such as additional hinges, mounts, or support elements for the tailgate, check out the available parts in the Mercedes tailgates and rear parts category.

Why choose original used components?

In the case of structural body elements, such as tailgate hinges, original used components often provide a favorable compromise between price and functionality. Factory parts are designed for long-term use, and their geometry and rigidity are tailored to the specific model. In the context of selecting used subassemblies, it is also worth familiarizing yourself with a broader approach to vehicle repairs – you can find more on this topic in the article Manual transmission failures in cars – why is an original used part a more sensible choice than regeneration?.

Summary

Mercedes W639 Tailgate Hinge Top Right O/S Trunk Brilliant Silver is a factory component from the Tailgates and rear parts group, designed for the right side of the rear body. It ensures proper guidance and stable closing of the tailgate, and thanks to its original design, it facilitates installation and the maintenance of correct body geometry. It is a practical solution for repairs of the vehicle's rear area when functionality and compliance with the manufacturer's specifications are the priority.