Mercedes W177 Rear Light Trunk Tailgate Right O/S Harness Plug Cable A1779062000

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Rear Light Trunk Tailgate Right O/S Harness Plug Cable is an original electrical system component designed to support the right-hand tail light in the trunk lid. As a product from the Wires, harnesses, and connectors category, it ensures a proper electrical connection and stable communication between the light and the vehicle's electrical system, resulting in safe and predictable rear lighting operation. As a part dedicated to a specific Mercedes model, the harness guarantees a perfect fit for connectors and wire routing geometry.

Specifications and technical data

• SKU: A1779062000-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779062000
• Substitutable numbers: A1779062000, A 177 906 20 00
• Location on the vehicle: Rear, Right
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The offered harness is designed for installation in the rear of the vehicle, on the right side, where it is responsible for power supply and control signals for the right tail light in the trunk lid. Precisely selected connectors allow for a secure connection to the factory electrical system without the need for modifications or soldering. This maintains the integrity of the lighting system, including position lights, brake lights, turn signals, or reversing lights – in accordance with the configuration used in a given Mercedes W177 unit.

Construction and compatibility with the Mercedes system

The wiring harness has been prepared as a component dedicated to a specific Mercedes platform, which means matched wire length, proper routing, and the correct type of connectors. The use of the original pin architecture minimizes the risk of installation errors and communication problems within the vehicle's electrical network. Such a solution allows for maintaining the factory operating parameters of the tail light, including correct cooperation with control modules and diagnostic systems.

Benefits of using an original harness

Using a dedicated harness in the rear right part of the vehicle brings a number of practical benefits:

• secure, stable electrical connection with the trunk lid light,
• maintenance of factory lighting functionality and communication with control modules,
• reduced risk of installation errors thanks to matched connectors,
• easier diagnostics of potential faults in the lighting system.

For the user, this means more predictable vehicle operation and the possibility of efficiently replacing a damaged harness without interfering with other system components.

Condition, installation, and service application

The item comes from disassembly and is offered as a used part, which is a cost-effective service solution for post-accident repairs or mechanical damage to wires in the trunk lid area. Installation involves plugging in the factory connectors on the light side and the vehicle installation side, while maintaining the original wire routing. This allows for restoring the proper operation of the right tail light without the need to modify the main harness or use adapters.

Expanding the modernization of the rear system in Mercedes

If you are planning a comprehensive repair or modernization of the rear electrical system in your Mercedes and need other components from the same group, such as additional harnesses, connectors, or wire sections, check out the available parts in the Mercedes wires, harnesses, and connectors category.

Support for economical vehicle operation

When planning electrical system repairs, it is worth paying attention to the selection of appropriate parts and service strategy to reduce operating costs while maintaining the proper quality of repairs. Additional tips on optimizing service expenses can be found in the article Economical operation of a Ford – where to look for the greatest savings in mechanical and body repairs, which shows how to approach repairs from the perspective of long-term savings.