Genuine OEM Volkswagen Rear Brake Stop Lamp, part number 3G9945087E. This lamp illuminates brightly when the brake pedal is pressed, signaling to following vehicles that the driver is braking. It is positioned at the rear of the vehicle, often as a high-mount or third brake light. The lamp features a red lens and an elongated design, measuring approximately 0.52 meters in length. Choosing a genuine OEM brake lamp ensures correct illumination, precise beam pattern, and factory mounting for optimal safety and regulatory compliance.