BMW E90 Bulb Socket Rear Bulb Holder Light Side Panel Left N/S 6937473

BMW E90 Bulb Socket Rear Bulb Holder Light Side Panel Left N/S is an original rear lighting system component designed for installation on the left rear side of the vehicle. It ensures stable bulb seating, proper contact guidance, and a secure connection to the electrical harness, which translates into efficient operation of parking lights, brake lights, and turn signals. This is a practical solution for users who want to restore the full functionality of the rear lamp in their BMW.

Specifications and technical data

• SKU: 6937473
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6937473
• Substitutable numbers: 63216937473, 6937473
• Location on the vehicle: Rear, Left
• Category: Other Interior Parts & Accessories

Purpose and function in the lighting system

The presented bulb holder is designed specifically for the rear left lamp in the BMW E90 series. Its function is to:

• keep the bulbs in the correct operating position,
• ensure stable electrical contact,
• facilitate bulb replacement without interfering with the lamp structure,
• reduce the risk of overheating and loosening of the sockets.

Thanks to its precise fit to the lamp geometry, the holder supports even distribution of thermal and mechanical loads, which is important during daily vehicle operation.

Construction and fitment for BMW

The bulb holder is a structural component prepared for the factory BMW rear lamp, taking into account the specific shape of the housing and the arrangement of mounting points. Properly profiled bulb sockets and contact guides allow for:

• precise seating of the holder in the lamp without additional modifications,
• secure connection to the factory electrical harness,
• maintaining the original lighting characteristics of the lamp.

Such a solution allows for maintaining the integrity of the electrical system and minimizes the risk of installation errors that could result in lighting failure messages or unstable light operation.

Benefits of using an original lamp holder

Using a dedicated bulb holder in the BMW E90 brings a number of practical benefits in daily operation:

• easier diagnostics and bulb replacement thanks to the organized socket layout,
• reduction of light flickering issues resulting from loose contacts,
• better protection of electrical connections against vibrations and micro-movements of the body,
• maintaining the factory standard of safety and vehicle visibility on the road.

For users who care about the technical and aesthetic consistency of the rear of the vehicle, using the correct lamp holder is an essential element of lighting repair or modernization.

Installation area and service application

The component is intended for installation in the rear left part of the vehicle, within the lamp assembly. It works well both for typical repairs after mechanical damage to the lamp and for replacing a worn-out holder that may cause electrical contact problems. Thanks to a design consistent with factory solutions, the installation process is orderly and predictable, which is important in workshop practice.

If you are planning a comprehensive repair or modernization of the rear lighting zone in your BMW and need other components from the same group, such as additional lamp holders, bulb sockets, or mounting elements, check the available parts in the Other BMW category.

Substantive support and knowledge development

For those interested in comparing technical solutions used in various car models, including engines, brakes, and chassis, an article describing the differences between standard and sports versions may be helpful. In this context, it is worth reading the material Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers design key vehicle systems for performance and durability.