VW Passat B8 Estate Rear Tail Light Wiring Harness Cable Left N/S 3G9945207J

VW Passat B8 Estate Rear Tail Light Wiring Harness Cable Left N/S is an original electrical installation component designed to support the rear lighting on the left side of the vehicle body. Thanks to its factory design, the harness ensures a stable electrical connection between the light and the vehicle's wiring system, which translates into proper light operation and road safety. It is a practical service solution for Passat B8 Estate users who want to restore the full efficiency of the lighting system without modifying the installation.

Specifications and technical data

• SKU: 3G9945207J-1
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3G9945207J
• Substitutable numbers: 3G9945207J, 3G9 945 207 J
• Location on the vehicle: Rear, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented wiring harness is a component from the Wires, harnesses and connectors group, responsible for power supply and signal transmission to the rear light on the left side of the estate body. Its location in the rear area of the vehicle on the driver's side allows for direct connection to the factory light, without the need for modifying the electrical installation.

The harness has been designed specifically for the Volkswagen Passat B8 Estate model, which means matched wire lengths, the correct connector layout, and compliance with the electrical parameters applied by the manufacturer. Such a solution reduces the risk of installation errors and problems with lighting system diagnostics.

Advantages of using an original Volkswagen harness

Using an original wiring harness in a Passat B8 Estate brings a number of practical benefits:

• factory connectors matched to the rear light on the left side,
• compatibility with the vehicle's electrical installation without the need for soldering or creating custom wires,
• maintaining proper communication with on-board systems responsible for light control,
• easier diagnostics of potential faults in the future.

Thanks to this, the harness constitutes a functional service solution in case of damage to wires, connectors, or during repairs after collisions in the rear part of the body.

Product characteristics and installation

The left rear tail light wiring harness is a component from the Volkswagen brand offer, which guarantees the maintenance of the vehicle manufacturer's quality standards. The product is intended for installation in the rear zone on the left side, maintaining the original wire routing and mounting points.

Due to the factory fitment, installation comes down to correctly routing the harness along the original brackets and connecting the connectors to the light and the vehicle's installation. Such a solution minimizes repair time and reduces the risk of additional faults resulting from improper electrical modifications.

Component condition and service application

The offered harness comes from the used parts group, which allows for an economical repair while maintaining the manufacturer's original specifications. It is a sensible choice in situations where there has been damage to wires, connectors, or the entire section of the installation within the rear light on the left side, for example after a collision or mechanical interference.

Replacing the harness with an original component from the same construction group helps restore the proper operation of position lights, brake lights, turn signals, or fog lights, depending on the light configuration in a given Passat B8 Estate unit.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Volkswagen and need other components from the same group, such as additional wire sections, connecting harnesses, or service connectors, check the available parts in the Volkswagen wires, harnesses and connectors category.

For drivers interested in a broader approach to selecting original used parts, identification procedures using catalog numbers, and the impact of such solutions on vehicle durability, the guide article on the selection and operation of original used parts in premium class cars may be helpful.