BMW X3 G01 Rear Light LED Lamp Cable O/S Socket Plug Wiring Harness 9853378

BMW X3 G01 Rear Light LED Lamp Cable O/S Socket Plug Wiring Harness is an original electrical system component designed to support the rear LED lighting in the BMW X3 G01 model. Thanks to its factory-spec design, it ensures a stable electrical connection, proper lamp operation, and compatibility with the vehicle's electrical system. It is a practical solution for post-collision repairs, lamp replacements, or damage to the factory wiring harness.

Specifications and technical data

• SKU: 9853378-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9853378
• Substitutable numbers: 9853378, 63219853378
• Location on the vehicle: Rear
• Part type: Electrical Connector
• Category: Sockets, Connectors & Wiring

Purpose and function in the vehicle

The presented socket with wiring harness is a component from the Wires, plugs, and connectors category, responsible for the electrical connection between the rear LED lamp and the vehicle's electrical system. Its placement in the rear area of the vehicle allows for direct integration with the factory lighting system without the need for any modifications.

This component is responsible for, among other things:

• supplying power to the LED segments in the rear lamp,
• maintaining a stable connection with lighting control modules,
• minimizing the risk of circuit interruptions caused by loose or ill-fitting connectors.

Benefits of using an original BMW wiring harness

Using an original BMW solution for the rear LED lamp allows you to maintain the factory lighting performance parameters. The design of the socket and wires is matched to the electrical architecture of the BMW X3 G01, which reduces the risk of communication errors with the vehicle's electronics and diagnostic issues.

Key advantages include:

• Factory-fit connectors – no need for custom adapters or soldering wires.
• Consistency with the original electrical diagram – facilitates work for electricians and service centers specializing in the BMW brand.
• Reduction of potential faults related to poor contact or incorrect circuit resistance.

Application in repairs and rear lighting upgrades

The socket with wiring harness for the rear LED lamp is suitable both for standard replacement of a damaged part and for more extensive work on the rear lighting. It is particularly useful when the factory wiring has been damaged due to a collision, contact corrosion, or improper previous repairs.

In practice, this component allows you to:

• restore the correct operation of position lights, brake lights, turn signals, or reversing lights in the LED lamp,
• maintain compliance with factory electrical load parameters,
• reduce lighting error messages on the instrument cluster.

Product characteristics and condition

The offered item comes from the BMW brand and is part of the vehicle's original electrical system. As a pre-owned aftermarket product, it represents a reasonable compromise between repair costs and maintaining factory build quality. This solution is particularly beneficial when servicing older vehicles, where both technical compliance and operational economy are important.

Complementary BMW electrical system components

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other items from the same group, such as additional harnesses, connectors, or lamp adapters, check out the available parts in the BMW wires, plugs, and connectors category.

In situations where original components are no longer available through the authorized service network, it is worth considering the use of verified salvaged parts – you can find more on this topic in the article No parts at the dealership? How to handle repairs of older models using salvaged parts.