BMW M2 F87 LED Rear Tail Light Lamp Left N/S Cable Wiring Harness Loom 7420991

BMW M2 F87 LED Rear Tail Light Lamp Left N/S Cable Wiring Harness Loom is an original electrical installation component designed to support the rear left LED light in this model. The dedicated wiring harness ensures proper power supply and control of lighting functions, which translates into stable lamp operation and correct communication with the vehicle's electronics. It is a practical solution when replacing a damaged lamp or repairing the wiring in the rear area of the vehicle.

Specifications and technical data

• SKU: 7420991-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7420991
• Substitutable numbers: 63217420991, 7420991
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function in the vehicle

The presented wiring harness is an installation component for the rear left light in the BMW M2 F87, belonging to the Rear lights and brake lights category. It is responsible for transmitting signals to the LED lamp, including power supply and control signals for individual lighting functions, such as position lights or brake lights. Thanks to its dedicated design for a specific body model, the correct wire lengths, appropriate connectors, and a logical installation routing layout are maintained.

Advantages of using an original BMW wiring harness

Using an original wiring harness in the rear lighting area provides a number of technical benefits:

• secure fit to the vehicle's factory electrical installation,
• maintenance of correct communication with lighting control modules,
• appropriate shielding and wire cross-sections selected for the LED lamp load,
• factory connectors minimizing the risk of looseness, overheating, and contact oxidation.

As a result, the rear light and brake light system operates stably, without random errors on the dashboard and without the need for installation modifications.

Scope of application and repair scenarios

The rear left LED tail light wiring harness is particularly useful in situations where:

• the factory installation has been damaged as a result of a rear-end collision,
• the wires have been cut or melted in the vicinity of the lamp,
• the connectors have corroded or suffered mechanical damage,
• it is necessary to replace the LED lamp while restoring the correct electrical connection.

This component allows for the restoration of proper lighting operation without the need to create custom harnesses or use universal solutions, which is particularly important in modern LED systems.

Condition and assembly aspects

The offered wiring harness comes from original BMW equipment and is a used part, which in practice means that the factory geometry of the wires and compatibility with serial mounting points are preserved. Assembly involves connecting the connectors to the lamp and the vehicle's installation in the rear part of the body, while maintaining the factory wire routing. Proper placement of the harness reduces the risk of chafing, tension, and interference with other trunk equipment components.

Technical support and additional information

When selecting electrical installation components for a BMW, it is worth paying attention to compatibility with the specific body version and type of LED lighting. For those interested in a broader context of operation and servicing of this brand's models, including the costs of aftermarket parts, an article comparing popular BMW diesel units may be helpful – BMW N47 vs M57 / M57N / M57N2 – a ranking of legendary diesels.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other components from the same group, such as tail light assemblies, control modules, or additional wiring harnesses, check the available parts in the BMW rear lights and brake lights category.