Genuine OEM Audi Spark Plug, part number 101905615A. This component ignites the air-fuel mixture within the engine's combustion chambers. It is a critical part of the ignition system, ensuring efficient and reliable engine starting and operation. Weighing 0.047 kg, this spark plug is manufactured to precise specifications. Using a genuine OEM spark plug ensures the correct heat range, electrode gap, and material quality for optimal engine performance and longevity.