Magneto Coil This coil fits Wisconsin engine model(s): ACN,         BKN,         AKM when equipped with Fairbanks Morse magneto number(s): FM-XD1B7S,        XD1B7S,        FMXD1B7S fits Wisconsin OEM magneto number(s):  Y135,        Y-135-S1,          Y135S1,        Y135S