Switch Box Mercury Mariner | CDI 114-2986 CDI Electronics Mercury Mariner Switch Box | 114-2986 High performance replacement ignition pack for various 50 HP to 150 HP Mercury/Mariner 4 & 6 cylinder outboard engines. CDI Electronics outboard ignition pack Fits Mercury and Mariner 4 cylinder 50, 65, 80 & 85 HP battery ignition engines from 1967 to 1975 Fits Mercury and Mariner inline 6 cylinder 90, 100, 115, 125, 135, 140, & 150 HP battery ignition engines from 1967 to 1979 Switch box and ignition coil are attached to mounting plate for easy installation Does not contain a rev limiter or tach circuit CDI determines the most common causes of component failure and designs their replacements to be better than the original Replaces Mercury 332-2986A 3, 332-2986A 4, 332-2986A 5, 332-2986A 7, 332-2986A 8, 332-2986A 9, 332-2986A10, 332-2986A17, 332-2986A21, 332-2986A22, 332-2986A23, 332-2986 A24, 332-2986A25, and 332-2986A27 Replaces Sierra 18-5779