BMW X3 E83 Rear Right O/S Light Lamp Bulb Holder Plug Socket Wiring 8373312

BMW X3 E83 Rear Right O/S Light Lamp Bulb Holder Plug Socket Wiring is an original lighting system component designed for installation on the rear right side of the vehicle. Thanks to its factory-fit for the BMW X3 E83, it ensures stable bulb seating, proper electrical connection, and reliable operation of the tail light. This is a practical service solution for cases where the factory bulb holder or connector has suffered mechanical or thermal damage.

Specifications and technical data

• SKU: 3418440-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3418440
• Substitutable numbers: 63213418440, 3418440, 63213414400, 3414400, 63213413452, 3413452, 8373312
• Location on the vehicle: Rear, Right
• Category: Light Bulbs & LEDs

Purpose and function in the lighting system

The bulb holder with socket and wiring harness section is responsible for reliable power delivery to the bulbs and their correct positioning in the passenger-side tail light. The placement on the vehicle is the rear, right side, which is crucial when selecting parts for a specific lamp in the BMW X3 E83.

This component integrates:

• bulb sockets in the correct layout for the tail light,
• an electrical connector allowing for quick connection to the vehicle's wiring,
• stable mounting in the lamp housing, minimizing the risk of looseness and light flickering.

Benefits of using an original BMW holder

Using an original bulb holder with wiring in the BMW X3 E83 allows you to maintain the factory operating characteristics of the rear lighting. The appropriate geometry of the contacts and wires reduces voltage drops, which translates into uniform bulb brightness and a lower risk of errors in the light control system.

Key advantages include:

• compatibility with the factory tail light on the right side,
• preservation of the original seal and lamp mounting system,
• easier diagnostics of potential lighting faults after replacing the damaged holder.

Practical service application

The bulb holder with socket and wiring for the BMW X3 E83 is particularly useful in situations involving:

• overheating of contacts and burnt-out bulb sockets,
• mechanical damage to the holder during a rear-end collision,
• corrosion or breakage of wires in the vicinity of the lamp.

Replacing the complete holder with wiring is often faster and more predictable than spot repairs, which facilitates restoring full functionality to the rear lighting and reduces the risk of recurring ground or power supply issues.

Condition and functional characteristics

The presented item is a dismantled part and is offered as a used original BMW part. This solution allows for an economical repair of the lighting system while maintaining compatibility with the factory electrical installation and the construction of the right-side tail light.

Related products and technical knowledge

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 holders, wiring, or complete lamp modules, check out the available parts in the BMW Lamps and LED Lights category.

To better understand the importance of functional lighting for safety and the principles of selecting used lighting components, it is worth checking out the guide: Seeing more and better – a complete guide to selecting and replacing used LED and Xenon headlights, which discusses, among other things, the selection of original BMW lighting components and practical aspects of their replacement.