Beat the high cost of replacing the entire ignition stator by replacing only the part that goes bad 99% of the time. Replacement coil fits OEM stator nos. 31120-958-023 or 31120-958-003. Fits ATC110 81-85, ATC185/S 80-83, ATC200 81-83, ATC200S 84-86 and FL250 Odyssey Four stroke 77-84 plus many other 4 cycle ATC s.