BMW G20 LED Taillight Lamp Wiring Cable Adapter Rear Right O/S 7955842

BMW G20 LED Taillight Lamp Wiring Cable Adapter Rear Right O/S is an original electrical installation component designed to support the right rear lamp in the BMW 3 Series G20 body. Thanks to the factory fitment and the maintenance of the correct connector geometry, the cable ensures a stable electrical connection and proper operation of the vehicle's rear lighting. It is a practical solution for post-collision repairs, lamp replacement, or fixing a damaged harness in the rear right corner area.

Specifications and technical data

• SKU: 7955842-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7955842
• Substitutable numbers: 7955842, 63217955842
• Location on the vehicle: Rear, Right
• Part type: Electrical Connector
• Category: Sockets, Connectors & Wiring

Purpose and function in the BMW G20 installation

The rear right lamp adapter is responsible for a secure and sealed connection between the main vehicle wiring harness and the passenger-side rear lamp. Its placement in the Rear, Right zone means it operates in an area exposed to vibrations, temperature fluctuations, and moisture, which is why proper connector fitment is crucial for lighting reliability.

This component is particularly important for:

• replacing or upgrading the right rear lamp,
• post-accident repairs in the rear panel and body corner area,
• factory harness damage, e.g., broken wires or issues with the connector block.

Connector construction and advantages of the original adapter

The adapter belongs to the Wires, plugs, and connectors group, meaning it was designed as an intermediate element between the vehicle's installation and a specific receiver – in this case, the rear lamp on the right side. Properly selected wire cross-sections, correct pin layout, and factory-standard plug construction reduce the risk of:

• loose contacts causing flickering or light failure,
• errors in lighting control systems,
• overheating of connections during long-term operation.

Using an original BMW adapter helps maintain electrical compatibility with the vehicle's control modules, which is especially important in modern installations with advanced diagnostics.

Benefits of using an original BMW cable

Choosing an adapter dedicated to the BMW G20 allows you to avoid modifying the installation, soldering, or using universal connector blocks. This brings measurable benefits:

• installation is faster and more predictable,
• the factory harness architecture is preserved,
• subsequent diagnostics of potential lighting faults are easier.

The product comes from the BMW parts group, which for many users means consistency with other installation elements and the ability to fit directly into factory brackets and wire routings in the body.

Operational characteristics and installation

The adapter is designed for operation in the rear right part of the vehicle, where wires are routed near the trunk lid and side panel. The appropriate harness shaping facilitates its placement in original guides, which limits the risk of abrasion and stress during operation. The condition described as used means the element comes from disassembly, which in practice often translates into a favorable price-to-functionality ratio while maintaining the factory design.

Before installation, it is recommended to perform a standard check of the contact and insulation condition, and then connect the adapter according to the factory harness routing in the BMW G20, ensuring it is not exposed to excessive bending during trunk lid operation or lamp removal.

Expanding the BMW lighting installation

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 additional adapters, lamp connectors, or harness sections, check the available parts in the BMW Wires, plugs, and connectors category.

For drivers considering broader service work on vehicle components, including parts operating in difficult conditions, an article discussing the differences between stock parts and more heavily loaded components, as well as issues regarding purchasing second-hand parts, may be helpful – you can find it here: Stock vs. sports suspension – design differences and is it worth buying used suspension parts?.