Selecting the Right Propeller
Check your engine manual for the recommended Wide Open Throttle (WOT) RPM Range. Running at WOT the boat should ideally be near the top end of the range for best performance. Water sports or extra weight on board may require a drop in propeller pitch to meet WOT recommendations. Check here if you need to know your engines recommended WOT RPM range. Check here if you want to replace your prop and you know the original part number.

Running in the proper WOT range already?
Find the diameter and pitch indicated on your current prop. Most propellers are marked with this information. Match the diameter and pitch when selecting a replacement.

Need a change in pitch to match WOT?
RPMs too high? Move to a higher pitch to slow the RPM and for more top speed potential.
RPMs too low? Move to a lower pitch to increase RPM and for greater acceleration.
2 inches in pitch equals around 400 RPMs.

Aluminum vs Stainless Steel
Well designed aluminum props perform very well. An aluminum propeller will break more easliy and therefore sacrifice itself when striking larger objects or the bottom. This can save expensive gearbox and shaft damage in your lower unit.

Stainless Steel props can withstand more damage from small objects in the water and are more corrosion resistant in salt or brackish water. They are a good choice for well known deep water running.

Spare Prop
It's a smart idea to have a spare propeller on board. A broken prop can leave you stranded, and running a broken prop to get home can cause damage to your engine.

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