Audi A4 B9 Rear Tail Light Lamp Wire Connector Plug Outer Right O/S 8W5945076A

Audi A4 B9 Rear Tail Light Lamp Wire Connector Plug Outer Right O/S is an original electrical installation component designed to support the right, outer tail light in the Audi A4 B9 generation model. Thanks to the factory-spec connector geometry and the precisely matched wire length, the harness ensures a secure electrical connection and stable lighting operation. It is a practical solution for post-collision repairs, lamp replacement, or damage to the factory wiring.

Specifications and technical data

• SKU: 8W5945070A-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5945070A
• Substitutable numbers: 8W5945070A, 8W5 945 070 A, 2SK012248, 2SK 012 248
• Location on the vehicle: Rear, Right
• Category: Other Starters, Alternators, ECUs & Wiring

Application and vehicle function

The presented harness operates in the rear lighting area on the passenger side, responsible for power supply and control signals for the outer tail light. The vehicle placement, defined as rear – right side, facilitates clear identification of the component during part selection and installation.

The element is designed to work with the factory Audi installation, which allows for maintaining the vehicle's original electrical architecture without the need for modifications or soldering universal connectors.

Construction and installation fitment

The harness consists of a wire and a plug matched to the socket of the outer tail light on the right side. The connector design has been engineered to:

• ensure a stable, mechanically secure connection with the lamp,
• minimize the risk of contact looseness and circuit interruption,
• facilitate assembly and disassembly during lighting service.

The original plug geometry limits the possibility of connection errors, and the properly routed wire allows for correct placement of the harness in the trunk area or the lamp cavity.

Benefits of using an original Audi harness

Using a factory harness in an Audi A4 B9 brings a number of practical service and operational benefits:

• Compatibility with the vehicle's installation – maintaining the original standard of connectors and wire cross-sections.
• Reduction of potential assembly errors thanks to the dedicated plug shape.
• Possibility of restoring proper lighting operation after mechanical damage or wire corrosion.
• No need to use adapters or adapt universal harnesses.

The product comes from the Audi group, which is important for users expecting consistency with the factory solutions used in the vehicle.

Condition of the component and use in repairs

The offered harness is a used component, which makes it an attractive cost-effective alternative to new parts while maintaining the original specification. Such components are particularly useful for:

• post-accident repairs of the rear body section,
• replacing a damaged lamp along with a section of the installation,
• resolving light failure issues resulting from wire damage near the lamp.

Choosing an original, used harness often allows for shortening repair time and avoiding additional work related to adapting the installation.

Part selection by numbers and parameters

For precise component selection, it is worth using the manufacturer's markings and interchangeable numbers visible in the technical specification section. This allows for verifying compatibility with a specific version of the Audi A4 B9 equipment and avoiding problems with tail light compatibility.

In case of doubts when selecting the harness, comparing the shape of the plug and the placement on the vehicle, defined as the rear right side, is helpful.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other elements from the same group, such as harnesses, connectors, or lamp adapters, check the available parts in the Other Audi category.

To better understand the structural differences between individual model lines of this brand, including solutions used in the drivetrain and chassis, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which helps in consciously planning further modifications and car service for Audi vehicles.