Mercedes Vito W639 Rear Left Lamp N/S Light Bulb Socket Holder A0008201077

Mercedes Vito W639 Rear Left Lamp N/S Light Bulb Socket Holder is a factory-original rear lighting component designed to support bulbs in the left brake light. By maintaining the original geometry and connectors, it ensures proper operation of brake lights, position lights, and turn signals, as well as stable bulb mounting. It is a practical solution for repairing a damaged lamp or restoring full lighting functionality in a Mercedes Vito W639.

Specifications and technical data

• SKU: A0008201077
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0008201077
• Substitutable numbers: A0008201077, A 000 820 10 77
• Location on the vehicle: Rear, Left
• Category: Centre & Third Brake Light Assemblies

Purpose and function in the lighting system

The presented bulb holder is part of the Main and center brake lights category and is responsible for the mechanical and electrical operation of bulbs in the rear left lamp of the Mercedes Vito W639. The socket design allows for:

• stable seating of bulbs in their correct operating positions,
• reliable routing of electrical paths to individual lamp functions,
• easy removal and replacement of service bulbs,
• maintaining proper electrical contact with the vehicle's wiring harness.

As a result, the rear lighting system maintains the required functionality and signal visibility for other road users.

Construction and fitment for the Mercedes Vito W639

The socket has been designed specifically for the rear left lamp of the Mercedes Vito W639, which translates into precise fitment to the lamp housing and compatibility with the factory electrical harness. The arrangement of mounting points and contacts corresponds to the manufacturer's original specification, ensuring installation without the need for modifications or adaptations.

The placement on the vehicle, defined as rear – left side, ensures clear identification of the component during part selection and eliminates the risk of confusion between the right and left sides.

Benefits of using an original bulb holder

Using a dedicated bulb holder in the rear lamp offers a number of practical advantages:

• Stable lighting operation – proper routing of electrical paths reduces the risk of flickering lights or intermittent failures.
• Correct cooperation with the vehicle's electrical system – compliance with factory parameters facilitates diagnostics and service.
• Easier maintenance – quick access to bulbs and their replacement without interfering with the lamp structure.
• Reduced risk of contact overheating due to properly selected contact surfaces.

For the user, this means more predictable operation of brake and position lights, which is important for both safety and vehicle operating comfort.

Condition, installation, and practical application

The item is offered as a used part, which is a cost-effective solution while maintaining the original design and fitment for the Mercedes. The holder is intended for installation in the rear left lamp and can be used both for post-collision repairs and for replacing a worn or damaged socket that causes lighting issues.

In practice, installation involves transferring the holder into the lamp housing and connecting it to the factory electrical harness. Thanks to the preservation of the original connector form, this process is straightforward for an experienced mechanic or automotive electrician.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mercedes and need other components from the same group, such as rear lamps, bulb holders, or brake light modules, check out the available parts in the Mercedes main and center brake lights category.

Additional technical and operational tips

When selecting a bulb holder for the Mercedes Vito W639, it is worth paying attention to the compatibility of the mounting side and the type of lamp used in the vehicle. It is also recommended to check the condition of the contacts and wires in the harness to fully utilize the electrical efficiency of the socket and avoid recurring faults resulting from corrosion or installation damage.

In the case of broader service work on the vehicle, especially when you are also considering replacing powertrain components, a practical guide on purchasing used components may be helpful – you can find it in the article How to buy a used car engine and not get scammed – a step-by-step guide, which discusses universal principles for assessing the technical condition of used parts.