Rear Lamp BMW X3 E83 Left N/S Light In Trunk Lid Socket Plug Wiring 8369712

Visual condition of the part 

The product shows signs of use visible in the photos. 

Rear Lamp BMW X3 E83 Left N/S Light In Trunk Lid Socket Plug Wiring is an original electrical installation component designed to support the rear lighting on the left side of the vehicle. It ensures a stable connection between the wiring harness and the rear lamp, which translates into reliable operation of the position and brake lights. This is a practical solution for users who want to restore full lighting functionality without interfering with the factory installation.

Specifications and technical data

• SKU: 3418443-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3418443
• Substitutable numbers: 63213420205, 3420205, 63213418443, 3418443, 63213414013, 3414013, 63216990175, 6990175, 8369712
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function in the vehicle

The presented cable with a plug has been designed for the BMW X3 E83 model and belongs to the Rear lights and brake lights group. It is responsible for transmitting electrical signals to the driver's side rear lamp, which includes, among others, position lights, brake lights, and other functions provided in the given vehicle configuration.

The placement on the rear left side of the vehicle allows for precise fitting to the factory lamp mount, without the need to modify the harness or use adapters. This maintains the consistency of the installation and ensures proper cooperation with the lighting control modules.

Construction and technical fitment

The element consists of a section of the electrical installation with a factory plug matched to the rear lamp socket. The connector used is prepared for operation in conditions typical for the rear body compartment, taking into account temperature and humidity changes. The cable design enables:

• a stable electrical connection with the rear lamp on the left side,
• maintenance of the correct pin sequence in accordance with the factory BMW standard,
• installation in existing harness routings in the trunk or the side part of the body.

Thanks to the use of the original connector geometry, the cable works with the factory rear lamp, which reduces the risk of contact looseness and problems with intermittent lighting failure.

Service application and installation benefits

This cable with a plug is particularly useful in situations where the factory harness at the lamp has been damaged (e.g., broken wires, melted connector, contact corrosion). Replacing the entire section with the plug is often a faster and more predictable solution than makeshift repairs, such as soldering or using universal terminal blocks.

The main advantages of using this element include:

• restoration of proper rear and brake light operation on the left side without interfering with the main harness,
• preservation of the factory connection standard, which facilitates diagnostics and potential future repairs,
• reduction of the risk of errors in the lighting control system resulting from incorrect connections.

Characteristics as a used part

The offered cable is an aftermarket item, which means it comes from disassembly but has been verified for installation suitability. For the user, this means the possibility of using an original component as an attractively priced alternative to a new part. In practice, this allows for an economical repair of the lighting system while maintaining compliance with the factory specification.

Compatibility and reference numbers

The part has a dedicated OEM number and related interchangeable numbers, which facilitates unambiguous identification in BMW catalogs and part selection systems. Before purchasing, it is worth comparing the markings with the vehicle data or using the part number search engine to confirm full compatibility with a specific version of the BMW X3 E83.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other elements from the same group, such as combination lamps, bulb holders, or additional cables with plugs, check the available parts in the BMW rear lights and brake lights category.

To better plan repairs and make informed choices when selecting aftermarket components, it is worth reading practical tips on choosing original elements – the article The best used car parts – a guide to the most frequently chosen original parts will be helpful.