Sierra International 18-5775 Switch Box 3 &amp; 6 cylinder outboards with ADI ignition system CDI Interchange: 114-7778 Chrysler / Force / US Marine Interchange: 332-7778A12 Mallory Interchange: 9-25100 Mercury Marine Interchange: 332-7778A6, 332-7778A12, 332-7778A9, 332-7778A3, 332-5524A1, 332-7778A1, 332-7778A7, F749301, F7778A9 Mercury Race Outboard Interchange: 332-7778A3, 332-7778A12 Mercury Sport Jet Interchange: 332-7778A12