BMW E92 LCI Rear Light Side Panel Wire Cable Harness Left N/S 7251957

BMW E92 LCI, Rear Tail Light Wiring Harness is an original electrical system component designed to service the rear lighting in the facelifted coupe body style. Engineered for specific connectors and body geometry, the harness ensures stable power supply and correct control of the left-side rear lamp.

Specifications and technical data

• SKU: 7251957-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7251957
• Substitutable numbers: 7251957, 63217251957
• Location on the vehicle: Rear, Left
• Category: Centre & Third Brake Light Assemblies

Vehicle Application and Function

The presented tail light wiring harness is dedicated for installation in the rear of the vehicle, on the driver's side. It is responsible for delivering power and control signals to the lighting unit, covering functions such as brake lights, position lights, turn signals, as well as reverse and fog lights – according to the configuration of the installed lamp.

Thanks to its factory fit for the specific body model, the harness maintains the correct wire routing, which reduces the risk of insulation abrasion, unwanted stress, and installation errors. This is particularly important when repairing after a collision or replacing damaged lighting.

Construction and Installation Fit

The component is designed as a complete harness for the left rear lamp, with appropriately selected wire length and factory connectors. This allows for a near plug-and-play installation, without the need for modifying the existing wiring or soldering additional wire sections.

• Factory Connectors – ensure a secure electrical connection and proper locking in the lamp socket.
• Appropriate Wire Gauge – sized for the current loads typical for rear lighting.
• Thoughtful Routing – harness designed to follow original mounting points in the body.

This solution facilitates compliance with factory service documentation and minimizes installation time in a workshop environment.

Benefits of Using an Original BMW Harness

Using an original BMW wiring harness in the "Main and Center Brake Lights" category allows for restoring full rear lighting functionality without the quality compromises typical of universal aftermarket parts.

• Stable Lighting Operation – reduces the risk of flickering, brake light failures, or turn signal malfunctions.
• Vehicle Electronics Compatibility – ensures proper cooperation with control modules and the onboard diagnostic system.
• Operational Safety – correct functioning of brake and position lights impacts vehicle visibility and the reaction of drivers behind.

For workshops and users, this means fewer service callbacks and predictable electrical system performance in the long term.

Condition, Verification, and Service Application

The offered harness is a used part from a dismantled vehicle, providing a cost-effective solution while maintaining original manufacturer specifications. Before being offered for sale, components of this type are routinely verified for circuit continuity, insulation condition, and connector integrity, allowing for their reuse in a vehicle.

The harness is particularly suitable for situations such as:

• repair after mechanical damage to the rear of the body,
• resolving lighting issues resulting from previous, unprofessional wiring modifications,
• restoring factory configuration after installing non-factory lamps or adapters.

Related Products and Resources

If you are looking for other components in the BMW Main and Center Brake Lights category, check out the BMW Main and Center Brake Lights available in our store to find a complete solution for your model.

If you are interested in the cost-effectiveness of purchasing dismantled parts and practical tips for selecting used components, read the article Used Car Parts for Mini Cooper – A Way to Style and Save, where we discuss the advantages of making informed choices from the aftermarket.