Genuine OEM Volkswagen Spark Plug, part number 06Q905601E. This critical component is responsible for igniting the air-fuel mixture within the engine's combustion chambers, initiating the power stroke. It is installed in the cylinder head. Weighing approximately 0.054 kg, this spark plug is engineered to precise thermal and electrical specifications. Using a genuine OEM spark plug ensures correct heat range, electrode gap, and material composition for optimal engine performance and fuel efficiency.