MERCURY : 25 (4-STROKE) Model Serial Ranges 0G590000 THRU 0G760299 0G760300 THRU 0T408999 0T409000 THRU 1B344298 9973100 THRU 0P016999 0P017000 THRU 0P153499 0P153500 THRU 0P388282