Spark Plug Spark plug igniting the air-fuel mixture in the combustion chamber ESTANFI "EST-T20TT" - Not availableMERCEDES-BENZ - S-Class, 124, 190, Kombi; RENAULT - 21; PEUGEOT - 205, 305; FORD - Escort; CITROËN - BX; AUDI - A6; ...