Genuine OEM Volkswagen Spark Plug, part number 06K905601B. This essential component is responsible for igniting the compressed air-fuel mixture within the engine's combustion chambers, initiating the power stroke. It is installed in the cylinder head of the engine. Featuring a ceramic insulator and precisely engineered electrodes, it delivers a consistent spark under extreme conditions. Opting for a genuine OEM spark plug ensures the correct heat range, electrode gap, and material composition for optimal combustion efficiency, fuel economy, and engine longevity.