Spark Plug Spark plug igniting the air-fuel mixture in the combustion chamber NPS "W20FP-U" - Not availableOPEL - Kadett C, Ascona, Corsa A; CITROËN - CX; RENAULT - Rodeo 4; SKODA - 105,120; UAZ - 3160; VOLVO - 66; FIAT - 126; ...