13.25" diameter x 17" pitch 3 blade Aluminum RH rotation 13 spline - includes hub kit and thrust washers Application: 18-21' SWEPT BLADE GENERAL USE 30-38 MPH - Precision die casting provides greater strength & longer life - Baked-corrosion resistant paint gives added protection Brand new, genuine Johnson/Evinrude/OMC/BRP Propeller. This is a factory original equipment part, not aftermarket..