I have a 2001 Hydrodyne GSX AIR 20 and I bought it without a prop. Does anyone know what the stock prop is for this boat? Thank you.
A very common propeller on a direct drive ski boat is a 13" diameter, 13 Pitch propeller. There are other details you need to know. Is the propeller shaft splined, or keyed? What is the diameter of the propeller shaft? look up propeller shops in your area, and call them. You need to buy a propeller any way. It would be good to have a spare propeller, also.