What size Prop?

[sam blatt]

I have a 2009 Nitro 750Sc with a 2009 Mercury 90h.p. two stroke. I am in need of a new prop, but i'm new to boat ownership and don't know where to find the pitch or diameter of the stock prop on now. Any help would be good. Hoping to buy new prop tomorrow. Thanks for the help.



Sam

 

[Juan Gonzalez]

I hope I can explain:

I own a stock prop too (Mercury). My prop has a number on the side of the prop (77346A45P19) P19 means a pitch of 19".



The diameter and the pitch are also mentioned on the back of the prop. Right now you can

 

[Bob Bourget2]

The stock prop on that {2008} rig was a 21", alum.

 

[TOMMY RICH]

I'm runnin' a 13"x21P SS on my 90 and it works perfect.

The 21 is a good prop all the way up to a 125.