I have bought a 1999 18 foot Searay with a Mercury 125 outboard, a standard configuration put together by Searay. Searay calls for a 48-77348 prop (12.75x21). The 1999 Mercury 125 outboard, model #1125412WD specs out WOT of 4750 to 5250 RPM. Currently the stats are, maximum RPM is 6000, 40...
