BMW F20 F21 Tail Light Rear Lamp Left N/S Plug Socket Wiring 1-2141397-1

BMW F20 F21 Tail Light Rear Lamp Left N/S Plug Socket Wiring is an original rear lighting installation component designed for installation on the left side of BMW F20/F21 series vehicles. The use of a factory socket with wiring ensures a stable electrical connection, proper operation of the tail lights and brake lights, and facilitates maintenance of the lighting system.

Specifications and technical data

• SKU: 7241543-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7241543
• Substitutable numbers: 63217241543, 7241543, 1-2141397-1, 2141397
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function in the lighting system

The presented wiring harness with socket is a component in the Tail lights and brake lights category, responsible for the electrical connection between the tail lamp and the vehicle's electrical system. The placement on the vehicle, defined as rear – left side, allows for unambiguous identification of the installation area and reduces the risk of errors when selecting parts.

This component is particularly useful for:

• repairs after collisions in the rear, left part of the bodywork,
• damage to the factory socket or the power cable supplying the lamp,
• problems with intermittent power supply to the position lights or brake lights.

Connector construction and benefits of using an OEM component

The socket with wiring has been designed as part of the factory installation, which ensures the correct geometry of the connector, the appropriate length of the wire, and a perfect fit for the original tail lamp. As a result, the connection is mechanically and electrically stable, and installation does not require any modifications to the harness or the use of adapters.

Key benefits of using this solution include:

• reliable signal transmission to the position light, brake light, and other lamp functions,
• preservation of the factory connection standard in the BMW installation,
• reduction of the risk of electrical diagnostic errors associated with non-factory modifications.

Vehicle placement and installation aspects

The component is intended for installation in the rear, left part of the vehicle, in the immediate vicinity of the lamp. Such precise determination of placement on the vehicle facilitates the selection of the correct component during lighting system repairs. In practice, installation comes down to connecting the socket to the lamp and plugging the wire into the factory harness, while maintaining the original cable routing.

This solution is beneficial for both workshops and individual users, as it allows for the restoration of full lighting functionality without the need to reconstruct the entire rear wiring harness.

Product condition and service application

The offered component is in used condition, which allows for an economical repair of the lighting system while maintaining the original BMW specification. Such components are often chosen for post-accident repairs, where both technical compliance and optimization of service costs are important.

In combination with a properly selected tail lamp, the socket with wiring enables the restoration of correct light operation, the elimination of lighting errors on the dashboard, and compliance with safety requirements and traffic regulations.

Part selection by numbers and technical support

The component has a dedicated OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific version of the BMW F20/F21. When selecting, it is recommended to compare the markings with the existing installation or the vehicle's service documentation to ensure full electrical and mechanical compatibility.

If you want to better understand the differences between original, replacement, and used parts and their long-term cost-effectiveness, it is worth reading the article: Original, replacement, or used parts – what to choose when repairing a BMW.

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