The BOUGIE EYQUEM RXC58HSEDP spark plug is intended for petrol engines in selected Citroën and Peugeot models. The spark plug initiates ignition of the air fuel mixture inside the combustion chamber. Its design supports a stable spark and helps maintain smooth engine operation. The electrode material resists heat and wear. The dimensions match engines within a defined vehicle range. The spark plug serves as a replacement part within existing ignition systems. Use depends on vehicle and engine type as indicated by the manufacturer. Proper application supports reliable starting and consistent combustion over the service life.