BMW E92 Rear Side Panel Light Lamp Bulb Holder Socket Left N/S 7174407

BMW E92 Rear Side Panel Light Lamp Bulb Holder Socket Left N/S is an original rear lighting system component designed for installation on the left side of the rear bodywork. Thanks to its factory design, it ensures proper bulb seating and a stable electrical connection, which translates into clear light signals and safe vehicle operation. This used OEM component is a sensible choice for repairs when you want to maintain compatibility with the factory BMW installation.

Specifications and technical data

• SKU: 7174407
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7174407
• Substitutable numbers: 63217174407, 7174407, 63214428113, 4428113
• Location on the vehicle: Rear, Left
• Category: Light Bulbs & LEDs

Purpose and function of the rear lamp socket

The presented lamp bulb holder socket has been designed specifically for the rear left side of the BMW E92 body. It is responsible for mechanical mounting of the bulb holder and for reliable routing of electrical signals to individual light points, such as the position light, brake light, or turn signal (depending on the lamp configuration in a given vehicle). A properly selected socket eliminates the risk of looseness, flickering lighting, and overheating of the contacts.

Construction and fitment to the BMW installation

The socket is a component from the Lamps and LED lights group, prepared to work with the factory BMW electrical harness. The design is based on standard mounting points, so installation is carried out in existing holes and clips without the need for modifications. Properly shaped guides and contact sockets facilitate correct insertion of the lamp holder and installation connector, which shortens service time and reduces the risk of assembly errors.

Benefits of using an original socket

Using an original lamp bulb holder socket in a BMW E92 allows you to maintain the consistency of electrical and mechanical parameters with the rest of the lighting system. In practice, this means:

• a stable electrical connection, reducing voltage drops at the contacts,
• proper positioning of the lamp holder relative to the lens,
• compatibility with the factory wiring harness,
• easier diagnostics of potential faults in the future.

For the user, this translates into clear and consistent operation of the rear lighting, which has a direct impact on safety and compliance with traffic regulations.

Condition of the component and service application

The lamp bulb holder socket is offered as a used part, which is a cost-effective solution while maintaining the original BMW specification. This type of component is particularly useful for post-collision repairs, replacing a damaged lamp, or addressing lighting interruptions resulting from contact wear. Thanks to the factory manufacturing standard, it can be treated as a functional replacement for a damaged socket without interfering with the vehicle's installation.

Lighting system expansion and technical knowledge

If you want to better understand how to select lighting system components for premium cars and how to safely replace headlights and LED components, it is worth reaching for specialized materials. Practical tips can be found in the article See more and better – a complete guide to selecting and replacing used LED and Xenon headlights, which discusses, among other things, the selection of used BMW LED headlights and the importance of original OEM parts in the lighting system.

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 bulb holders, control modules, or complete lamp assemblies, check the available parts in the category BMW Lamps and LED lights.

Additional market context and arguments for choosing used OEM components for premium cars are also provided by the blog post Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026, which shows why the conscious selection of used lighting elements is currently such a popular and sensible solution.