BMW F40 Taillight LED Lamp Wiring Connector Rear Left N/S 7450643

BMW F40 Taillight LED Lamp Wiring Connector Rear Left N/S is an original electrical installation component designed to support the rear left LED taillight in BMW F40 series models. Thanks to its precise fit to the factory body harness, it ensures a stable electrical connection and proper operation of lighting functions. It is a practical solution for replacing a damaged section of the installation or for post-collision repairs, when you want to maintain factory compatibility and consistency of the electrical system.

Specifications and technical data

• SKU: 7450643-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7450643
• Substitutable numbers: 7450643, 63217450643
• Location on the vehicle: Rear, Left
• Part type: Electrical Connector
• Category: Sockets, Connectors & Wiring

Purpose and function in the vehicle

The presented wiring is a component of the power supply and control system for the rear left LED taillight in the BMW F40 body. It is responsible for transmitting electrical signals between the vehicle's main harness and the lighting module, which directly affects the operation of position lights, brake lights, turn signals, or marker lights, depending on the specific lamp configuration.

Its location in the rear part of the body on the left side facilitates faster identification during service work and limits the scope of upholstery disassembly. As a result, replacing a damaged section of the installation can be carried out in an orderly and predictable manner.

Construction and fit to the BMW installation

As an element from the Wires, plugs, and connectors group, the wiring has been designed to work with factory BMW connectors. Properly selected wire cross-sections, insulation, and the type of connectors used allow for maintaining the correct electrical parameters in the LED lamp circuit.

Key design features of this component include:

• dedicated connectors compatible with the rear left LED taillight,
• wiring geometry adapted for routing in the rear body area,
• placement of mounting points allowing for stable positioning in factory guides.

Such a solution reduces the risk of mechanical stress, insulation abrasion, or incorrect harness routing in the trunk area.

Service application and benefits of installation

Using this wiring is particularly beneficial in situations where the installation has been damaged as a result of a collision, mechanical interference, or contact corrosion. Replacing the complete section instead of performing temporary soldered repairs allows for maintaining the consistency of the electrical system and facilitates potential future diagnostics.

The main advantages of the installation include:

• maintaining the original installation architecture within the rear LED taillight area,
• reducing the risk of communication errors with lighting control modules,
• orderly routing of the wiring in the luggage compartment, in accordance with the manufacturer's specifications.

This component will prove useful both for standard replacement of a damaged wire and for more extensive repairs of the rear body, where it is necessary to restore the original harness routing.

Product characteristics and condition

The wiring belongs to the group of BMW electrical installation components, which means it has been designed to work with the systems used in the F40 model. This makes it possible to maintain consistent electrical parameters and proper cooperation with the vehicle's diagnostic systems.

The product is offered as a used part, which in practice means the possibility of an economical repair while maintaining compliance with factory specifications. For many BMW users, this is a reasonable compromise between cost and functionality, especially in the case of components from the lighting installation group.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the rear electrical installation in your BMW and need other components from the same group, such as additional harnesses, connectors, or lamp adapters, check the available parts in the BMW Wires, plugs, and connectors category.

For a better understanding of the relationships between individual vehicle systems, including the impact of suspension condition on lighting operation and driving safety, it is worth checking out our service guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.