I have a mercury 20 HP (Merc.200) 1976 and I need a new propeller, it came off. I've had a 9X9 but my motor was turning very very fast at full throttle. Did'nt give more speed between ¾ to full. I'm looking for a 11 pitch 3 blades propeller. I need a propeller with 8 splines. Many of them are 10. I've looked also for 8-15HP propellers for 1986 and younger and they have also props with 8 splines same thing as my 20 hp mercury.
Do they fit on my outboard, I would need a 11X10 3 blades props, my boat is in aluminum. I do not have a pontoon.