Just for information purposes, I was given the same prop off a 60 Merc and it fit right on my 50 Yamaha 4 stroke.
Powertech SWC3R13PM70 3 blade prop for sale. Stainless, 13 pitch, 10.5 diameter. Comes with a 13 spline Mercury hub, but will likely fit many others with a different hub kit. There is not a ding or scratch on it, it is like new.
135$ shipped.
Just for information purposes, I was given the same prop off a 60 Merc and it fit right on my 50 Yamaha 4 stroke.
PM sent