Audi A4 S4 B8 Rear Lamp Right O/S Tail Light Bulb Holder Socket 8K9945258D

Audi A4 S4 B8 Rear Lamp Right O/S Tail Light Bulb Holder Socket is an original lighting system component designed for installation in the rear right lamp of these models. It ensures stable bulb seating, correct electrical connections, and the reliable operation of tail lights and brake lights, which directly impacts vehicle visibility and driving safety. This is a practical solution for users who want to restore full lighting functionality without using random aftermarket replacements.

Specifications and technical data

• SKU: 8K9945258D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K9945258D
• Substitutable numbers: 8K9945258D, 8K9 945 258 D
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function in the lighting system

The rear right tail light bulb holder is responsible for securely mounting the bulbs and ensuring their proper connection to the vehicle's electrical system. A correctly selected component from this group allows for:

• maintaining a stable electrical contact while driving,
• proper operation of position lights, brake lights, and other lamp functions,
• reducing the risk of flickering or lighting failure on uneven roads.

By using an original holder dedicated to a specific tail lamp, the lighting system maintains the parameters specified by the vehicle manufacturer.

Compatibility with the Audi A4 / S4 B8 rear right lamp

The presented component has been designed specifically for use with the rear right lamp in the Audi A4 and S4 B8 generation. This means the shape, mounting points, and electrical connectors are perfectly matched to the factory lamp, with no need for modifications or adaptations. Precise fitment minimizes the risk of looseness, leaks, and assembly issues.

In practice, this translates into a faster replacement of the damaged holder and the ability to retain the original lamp, which is important both from a safety perspective and for the vehicle's future value.

Characteristics of the original Audi component

The original Audi tail light bulb holder is made of materials selected for their resistance to the heat generated by bulbs and the variable operating conditions in the rear part of the body. The design provides proper routing of electrical paths, which limits the risk of contact overheating and local installation damage.

The factory solution ensures compliance with the vehicle's electrical parameters, as well as the correct placement of bulb sockets in the lamp, which is significant for proper light distribution. As a result, the driver maintains full lighting functionality in accordance with the vehicle's homologation.

Used condition and benefits of choosing an original part

The item comes from the secondary market, which allows combining the advantages of an original part with an attractive purchase cost. Compared to random replacements, a used OEM holder usually works better with the factory wiring harness and the lamp itself, reducing the risk of assembly problems.

For owners thinking about the future resale of the car, using original lighting components is an argument for maintaining equipment consistency. If you want to learn more about the impact of original used parts on vehicle value, it is worth reading the article Original used parts vs. car resale price – how not to lose money?.

Audi tail lights and brake lights – expansion and service

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other elements from the same group, such as lamp lenses, lamp modules, or additional bulb holders, check out the available parts in the Audi tail lights and brake lights category.

Summary

Audi A4 S4 B8 Rear Lamp Right O/S Tail Light Bulb Holder Socket is a practical solution for drivers who want to restore full lighting efficiency without compromising on fitment and quality. The original design, dedicated to the rear right lamp, facilitates installation and ensures stable light operation, which translates into comfort and safety on the road.