Propeller Characteristics - Spline Count

Spline Count

Spline Count is an important factor in fitting a prop onto your boat. They are the little teeth you see on your prop shaft and inside the prop hub.

The number of splines on the shaft and inside the prop must match for the prop to fit your boat.

A Pin Drive prop application has no splines. The prop is secured to a smooth prop shaft with a pin through the shaft.


Count the teeth on your prop shaft or inside the prop hub to determine spline count.
Propeller Help Guide
P is for Propeller Propeller Basics
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Cupping Rake
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