Mercedes W447 Rear Lamp Left N/S Tailgate Light Plug Socket Wiring A4478200064

Mercedes W447 Rear Lamp Left N/S Tailgate Light Plug Socket Wiring is an original electrical installation component designed to support the rear left light in the tailgate. Thanks to its factory-fit for the W447 body, it ensures a stable electrical connection and proper operation of the lighting assembly. It is a practical solution for post-collision repairs, lamp replacement, or wiring harness damage.

Specifications and technical data

• SKU: A4478200064-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4478200064
• Substitutable numbers: A4478200064, A 447 820 00 64
• Location on the vehicle: Rear, Left
• Category: Sockets, Connectors & Wiring

Purpose and function in the vehicle

The offered component belongs to the Wires, plugs, and connectors group and is responsible for the electrical connection of the rear lamp located on the left side in the tailgate area. Its placement at the rear on the driver's side allows for precise fitting to the factory installation without the need for modifications.

This type of solution is particularly useful when:

• the factory wire or lamp socket has been damaged,
• the complete tailgate lamp is being replaced and a compatible connection is needed,
• it is necessary to restore the original wiring harness routing after bodywork and paint repairs.

Benefits of using the original Mercedes wiring

Using a component from the original Mercedes installation helps maintain the electrical integrity of the entire lighting system. Properly selected connectors and wire gauges support the correct operation of lamp functions and minimize the risk of errors in lighting monitoring systems.

The main advantages include:

• factory fitment for the specific W447 body model,
• maintenance of proper wire routing within the tailgate area,
• reduced need for soldering and custom-made connectors, which improves connection reliability.

Use in repairs and upgrades

The rear tailgate lamp wire with socket for the left side is suitable both for standard replacement of a damaged part and for more extensive service work. It can be used for:

• restoring the installation after mechanical damage or corrosion,
• swapping lighting components within the tailgate,
• servicing the electrical system when maintaining the original connector type is required.

With this solution, you can orderly restore full functionality to the rear lighting, which is important for both safety and compliance with road traffic regulations.

Condition and selection of the correct component

The item comes from disassembly and is offered as a used part, which provides a favorable compromise between repair costs and maintaining the manufacturer's original specifications. When selecting, it is worth paying attention to compatibility with the body version and the rear lamp configuration of the specific vehicle.

To facilitate identification, the product card provides manufacturer markings, reference numbers, and information about the placement on the vehicle, assigned to relevant attributes such as brand, placement on vehicle, or condition.

If you are planning a comprehensive repair or upgrade of the rear lighting area in your Mercedes and need other components from the same group, such as additional harnesses, connectors, or lamp sockets, check the available parts in the Mercedes wires, plugs, and connectors category.

For those considering broader vehicle modifications using parts from disassembly, practical tips on safe selection and installation of components may be useful – you can find them in the article Tuning with used parts – how to gain performance without spending a fortune.