Audi A4 B7 Headlight Wiring Harness Cable Plug Right O/S 8E0941004AK

Audi A4 B7 Headlight Wiring Harness Cable Plug Right O/S is an original headlight electrical system component for the passenger side, designed for precise connection of the lamp to the vehicle's electrical system. This part from the Wires, harnesses and connectors group ensures stable power supply and correct light signal communication, which translates into safe and predictable operation of the front lighting. Thanks to the factory geometry and connectors matched to the specific model, the harness facilitates the service replacement of a damaged section of the installation without the need for modifications.

Specifications and technical data

• SKU: 8E0941004AK-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0941004AK
• Substitutable numbers: 8E0941004AK, 8E0 941 004 AK, 0301219602, 0 301 219 602
• Location on the vehicle: Right
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the lighting system

The presented wiring harness is responsible for connecting the right headlight to the vehicle's body electrical system, carrying power and control signals to the individual lamp circuits. The placement on the right side of the vehicle allows for secure routing of the wires in the factory mounting points, which limits the risk of abrasion, looseness, and lighting operation disturbances. Using a dedicated harness instead of universal solutions helps maintain correct circuit resistance and signal stability, which is especially important in more modern lighting control systems.

Construction, connectors and compatibility

The harness has been designed as an element matched to the specific construction of the headlight and installation in the Audi A4 B7, with appropriately selected wire lengths, branch layouts, and connector types. Factory connectors ensure proper fit with the lamp sockets and the vehicle's installation, which facilitates assembly and minimizes the risk of errors during connection. This makes it possible to maintain the original electrical architecture without the need for soldering, crimping additional terminals, or using adapters, which is important both for durability and for diagnosing potential future faults.

Condition, service application and benefits of installation

The item comes from dismantling and is offered as a used headlight wiring harness, which is a cost-effective solution for post-accident repairs, mechanical damage, or corrosion of contacts in the original installation. Using an original harness from the same model series allows for maintaining the consistency of electrical parameters and correct wire routing in the headlight chamber and wheel arch. Replacing a damaged section with a complete harness shortens repair time, facilitates service work, and reduces the risk of subsequent lighting problems, such as flickering, dashboard errors, or intermittent light failures.

Application in workshop practice and operation

The right-side headlight wiring harness will prove useful both in professional body and paint shops and in workshops specializing in automotive electrics, where repeatability of assembly and compliance with factory documentation are important. For the vehicle user, installing the original harness means restoring the proper operation of low beam, high beam, and other headlight functions, without the need to interfere with the vehicle's main installation. This is a practical solution for post-collision repairs, replacing the headlight with another unit, or removing the effects of previous, non-factory installation modifications.

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Audi and need other elements from the same group, such as additional harnesses, wire sections, or dedicated connectors, check out the available parts in the Audi wires, harnesses and connectors category.

When planning broader service work on the vehicle, it is also worth checking out practical tips on assessing the condition of used components – our guide How to buy a used car engine and not get scammed – a step-by-step guide may be helpful, which shows what to look for when choosing parts from the secondary market.