i took this boat trade in last month i cleaned it up it had what looked like a new prop on it not a nick scuff nothing well i pulled another boater in that broke down and it caused me to go far into docking area and i chipped it up so i get in yesterday took it off and it has no numbers once i got the paint stripped off it looks like someone sanded it alot maybe it was rebuilt from a bigger prop? anyway i have no way of knowing the size. the center looks new nothing spun