The CDI Electronics 134-3736 Mercury/Mariner Distributer Trigger Housing fits the following engines with battery powered distributors:1969-1975 80 and 85 HP (4 cylinder), 1967-1979 90, 110, 115, 135, 140 and 150 HP (6 cylinder). Replaces part numbers: 332-4177, 332-4177A 3, 393-3736A79, 393-3736, 393-3736A 3, 393-3736A23, 393-3736A77.