Trunk Lid Mercedes W177 Boot Tailgate Panel Kosmos Cosmic Black Metallic - 191

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

Mercedes W177 Tailgate Cosmos Black Metallic is an original rear trunk lid panel designed for rear body mounting. This used part from the Tailgates and Rears category allows for a technically correct body repair while maintaining factory geometry and a consistent metallic paint finish in Cosmos Black Metallic – 191.

Specifications and technical data

• SKU: A1777401400-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777401400
• Substitutable numbers: A1777401400, A 177 740 14 00
• Location on the vehicle: Rear
• Color: Kosmos Black Metallic - 191
• Category: Boot & Hatch Lids

Technical Characteristics and Fitment

The presented Mercedes W177 tailgate is a body element designed as a rear lid panel, mounted at the rear of the vehicle. The OEM construction ensures proper body line alignment, correct mounting gaps, and compatibility with factory mounting points for hinges, locks, and accessories.

The Cosmos Black Metallic – 191 color is a dark, metallic paint that fits well with the styling of modern Mercedes models, facilitating an aesthetic replacement of a damaged tailgate without the need for immediate repainting of the entire rear body (depending on condition and individual painting requirements).

Application in Body Repairs

The tailgate from this series is intended for Mercedes compact class vehicles of the W177 family, where it is responsible for:

• closing the luggage compartment and sealing the rear of the body,
• correctly guiding the styling lines of the vehicle's rear,
• stable mounting of additional elements such as the lock, lighting, or decorative trim (if provided in the specific car configuration).

Thanks to its factory geometry, the panel allows for precise alignment of the tailgate with the fenders, bumper, and roof, which is important for both aesthetics and proper trunk closure.

Condition, Origin, and Benefits of Choosing a Used Part

The offered tailgate is a used part, which in practice means a favorable compromise between repair cost and maintaining original structural quality. Compared to aftermarket alternatives, the original body panel ensures:

• better fit to factory mounting points,
• retention of original structural rigidity in the rear body section,
• visual consistency with other elements of the Mercedes W177 body.

For users planning a conscious purchase of used market parts, a guide describing the principles of selecting and operating such parts may be useful – detailed information can be found in the article Used Parts – Your Guide to the Best Deals in an Automotive Store.

Preparation for Installation and Practical Aspects

The tailgate from the Tailgates and Rears category is designed for installation at the rear of the body, using factory mounting points. Before installation, it is recommended to:

• verify the compatibility of the part with the specific Mercedes W177 body version,
• check the condition of the paint surface and prepare for repainting if necessary,
• check the proper operation of the lock mechanism and hinges after assembling the entire rear lid unit.

This approach helps to reduce installation time and minimize the risk of needing additional bodywork and painting adjustments.

Related Mercedes Body Parts

If you are also planning to replace other tailgate elements or rear panels on vehicles of this brand during rear body repairs, check the available parts in the Mercedes Tailgates and Rears category.