Spark Plug Spark plug igniting the air-fuel mixture in the combustion chamber NGK "SIFR6B7G" - Not availableHAVAL - H6, H8, H9; AUDI - A4, A6; RENAULT - Megane, Laguna; PEUGEOT - 405; CITROËN - BX, ZX; VOLVO - V70; BMW - 3; ...