<1>Brand,Diameter and Pitch

Identify your current propeller brand，The center of the propeller (commonly known as the hub), you can find the diameter and pitch of the propeller, or the OEM number

<2>Spline Tooth

The number of teeth is very important to confirm. It must be clear that propellers of different brands are not completely universal.

<3>Horsepower and Year

On the Outboards body or on the mounting bracket, you can quickly find the metal nameplate with the year of production, horsepower value and model number engraved on it.

<4>Material

Stainless steel propellers are more expensive but are far stronger and more durable than aluminum, while delivering increased performance.Aluminum propellers are relatively inexpensive and suitable for general purpose use.