This is a genuine OEM kit, not a pattern / aftermarket item. It will fit:
Two-stroke models:
3HP: 1991 - 2001 (twin cylinder models)
4HP: 1987 - 2001 (not models with reverse)
If you have any doubts as to whether this will fit your outboard, please email the model and serial number, and I will be able to inform you of the correct one.