Mercedes W177 Hatchback Trunk Tailgate Hinge Right O/S Cosmic Black Metallic 191

Mercedes W177 Hatchback Trunk Hinge Right Cosmic Black Metallic 191 is an original body part from the Gas Springs, Locks, Hinges and Other Parts group, designed for the right side of the trunk lid. The hinge in the factory Cosmic Black Metallic color allows for maintaining a consistent body line and proper trunk lid operation without the need for custom-fit universal replacements.

Specifications and technical data

• SKU: A1777403600-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777403600
• Substitutable numbers: A1777403600, A 177 740 36 00
• Location on the vehicle: Right
• Color: Kosmos Black Metallic - 191
• Category: Lift Supports, Latches, Hinges & Additional Parts

Trunk Hinge Purpose and Function

The presented hinge is dedicated to the right side of the trunk lid in the W177 series hatchback body, ensuring the correct geometry for opening and closing the lid. The component is responsible for stable lid guidance, even load distribution, and precise closing, which is important for both user comfort and operational safety of the vehicle.

Thanks to its construction compliant with factory Mercedes standards, the hinge works with other lid mounting components, such as gas springs and locks, minimizing the risk of stress and sheet metal deformation.

Cosmic Black Metallic Color – Visual Matching

The factory Cosmic Black Metallic color allows for an aesthetic match to the body without the need for additional painting for vehicles in the same shade. This is a particularly beneficial solution for accident repairs or the replacement of individual parts where visual consistency and reduced preparation time for assembly are crucial.

The metallic finish is consistent with Mercedes' styling line, thus preserving the original visual characteristics of the trunk area.

Assembly and Operational Characteristics

The trunk hinge from this reference has been designed as a structural component that works with the factory mounting points in the W177 body. The appropriate shaping of the arm and the correct placement of mounting holes allow for proper alignment of the lid with the fenders, bumper, and rear lights.

In practice, this translates to:

• stable lid guidance throughout the full opening range,
• reduction of play and unwanted vibrations during driving,
• correct cooperation with the lock mechanism and gas springs.

As a body construction element, the hinge is important for maintaining proper gaps between body panels and for the comfort of everyday trunk use.

Part Condition and Application in Service

The offered hinge is a used part, allowing for economical vehicle repair while maintaining the original manufacturer's specifications. Such components are often used in professional body and paint shops and by discerning owners who prefer salvaged parts over unreliable aftermarket alternatives.

Choosing an original hinge from this series facilitates maintaining the factory operating parameters of the trunk lid and also reduces the risk of fitting issues or the need for mounting modifications.

Related Parts and Repair Extension

If you are planning a comprehensive repair or upgrade of the rear body area of your Mercedes and need other parts from the same group, such as additional hinges, trunk locks, or brackets that work with actuators, check the available parts in the category Mercedes Gas Springs, Locks, Hinges and Other Parts.

For users interested in a broader context of servicing and upgrading vehicles of this brand, materials discussing the development of Mercedes technical solutions in higher classes may be useful – more information can be found in the article about the evolution of the Mercedes S-Class and part selection across generations.

If you also operate vehicles of other premium brands and are interested in the topic of using salvaged parts in advanced electronic systems, it is worth reading the guide on servicing iDrive systems and electronic modules in BMW 3 and 5 series using used parts.