Porsche Cayenne 9PA Audi TT 8J Number Plate Light Lamp 7L5943021B

Porsche Cayenne 9PA Audi TT 8J Number Plate Light Lamp is an original component from the LED lamps and lights group, designed for precise illumination of the license plate area. This used OEM part ensures a factory fit, a consistent look with the rest of the vehicle's lighting, and stable operating parameters during daily use.

Specifications and technical data

• SKU: 7L5943021B
• Mark: Porsche
• Condition: Used
• OEM Part Number: 7L5943021B
• Substitutable numbers: 7L5943021B, 7L5 943 021 B
• Part type: Light Bulb
• Category: Light Bulbs & LEDs

Application and vehicle function

The presented number plate light has been designed for Porsche Cayenne 9PA and Audi TT 8J models, where it is responsible for uniform, legible illumination of the license plate at the rear of the vehicle. Thanks to LED technology, it provides bright, clear light with a stable color temperature, which improves the visibility of the registration number after dark and in difficult weather conditions. The original design allows for compatibility with the factory electrical installation, minimizing the risk of errors in burnt-out bulb monitoring systems or interference with the operation of other lighting elements. This is particularly important in modern vehicles, where diagnostic systems are sensitive to non-standard components.

Construction, LED technology and fitment

The lamp belongs to the LED lamps and lights group, which means it uses an energy-efficient light source with a long service life. LED diodes generate a uniform luminous flux with low power consumption, which relieves the electrical system and reduces component heating during operation. The housing has been designed for installation in the dedicated spot on the trunk lid, maintaining proper tightness and resistance to typical operational loads, such as moisture or temperature changes. The factory electrical connector facilitates plug-and-play installation, without the need for harness modifications or the use of additional adapters.

Benefits of using an original LED lamp

Choosing an original number plate light for a Porsche Cayenne 9PA or Audi TT 8J primarily ensures:

• maintaining a consistent light color with other vehicle lighting elements,
• a secure fit to the factory mounting hole,
• proper cooperation with onboard electronics and diagnostic systems,
• stable lighting performance over a long period of use. The used OEM part represents a reasonable compromise between cost and quality, allowing you to restore full functionality of the license plate lighting without compromising on factory manufacturing standards.

Condition, verification and purchase of used lighting

The part is offered in a used condition, which in practice means it has been removed from a vehicle and verified for further use. This type of solution is particularly attractive for maintenance repairs when you want to maintain the original vehicle specification while optimizing service costs. If you want to deepen your knowledge about selecting and replacing lighting elements, including LED and Xenon headlights, practical aspects of installation, and the importance of original components, it is worth checking out our guide: See more and better – a complete guide to selecting and replacing used LED and Xenon headlights. For drivers who are planning broader service work and want to consciously use the second-hand parts market, our practical guide on optimizing repair costs may also be helpful: how to save on car service by choosing used OEM parts.

Expanding Porsche lighting upgrades

If you are planning a comprehensive repair or upgrade of the exterior lighting zone in your Porsche and need other elements from the same group, such as additional LED lamps, lighting modules, or other body illumination components, check out the available parts in the Porsche LED lamps and lights category.