Mercedes W221 Lamp Rear Right O/S Tail Light Plug Socket Wiring A2115450328

Mercedes W221 Lamp Rear Right O/S Tail Light Plug Socket Wiring is an original electrical system component designed for the right rear lamp in Mercedes vehicles. It ensures a stable connection between the wiring harness and the lighting assembly, which translates into safe and predictable operation of the tail lights and brake lights. This used OEM component is a sensible choice for professional repairs or replacing a damaged lamp plug.

Specifications and technical data

• SKU: A2218200266-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218200266
• Substitutable numbers: A2218200266, A 221 820 02 66, A2115450328, A 211 545 03 28
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function of the component

The presented wiring with plug is dedicated to the lighting system in the rear part of the body, on the right side. Its task is to provide a secure, mechanically stable, and electrically correct connection between the lamp and the vehicle's installation. Thanks to this:

• the brake light signal is correctly transmitted to the lamp,
• position lights and other tail light functions operate according to the manufacturer's specifications,
• compatibility with the factory Mercedes electrical system is maintained.

Using an original plug with wiring minimizes the risk of contact issues, connector overheating, or installation errors that often occur with unprofessional modifications.

Construction and installation fitment

The wiring with plug has been designed as a component mounted in the rear of the vehicle, on the right side, in the immediate vicinity of the lamp. The connector design complies with the factory Mercedes standard, which facilitates installation in place of the damaged component without the need for interfering with the original wiring harness.

Key functional features:

• factory connector geometry matched to the tail lamp socket,
• appropriate wire length allowing for correct routing within the bodywork,
• maintenance of correct polarity and pin arrangement, which supports trouble-free light operation.

Thanks to this, the component can be used both for standard replacement of a damaged plug and for post-collision repairs where a section of the installation near the lamp has been damaged.

Product condition and benefits of choosing a used part

The offered wiring with plug comes from the Tail lights and brake lights category and is a used component, which allows combining the functionality of an original part with an attractive price. The used OEM component retains factory fitment parameters while enabling an economical repair of the lighting system.

Choosing a verified used part is also a way to reduce waste and reuse fully functional components. If you want to learn more about the advantages of this approach, it is worth reading the article Eco-driving: discover the benefits of used car parts, which discusses the practical and environmental pros of using used subassemblies.

Safety and reliability of the lighting system

A properly functioning right rear lamp has a direct impact on driving safety – it is responsible for vehicle visibility and braking signaling. Using the original wiring with plug helps maintain:

• stable electrical connections, reducing the risk of flickering or light failure,
• connector resistance to typical operational loads in the rear of the body,
• compliance with factory protections and Mercedes installation parameters.

This solution is particularly recommended for professional repairs, where consistency of the result and compliance with the manufacturer's technical documentation are important.

Expansion and modernization of the Mercedes lighting system

If you are planning a comprehensive repair or modernization of the rear lighting zone in your Mercedes and need other components from the same group, such as combination lamps, control modules, or additional power cables, check the available parts in the Mercedes tail lights and brake lights category.