Yamaha - M/T Series Turbo Fusion 4 Propeller - 4 Blade - 14-1/2" x 23 Pitch - RH Rotation - MAR-14423-FR-E0. This stainless-steel, four-blade propeller features an advanced design with an aggressive rake, progressive pitch, and through hub vented exhaust. It's excellent on stepped-hull offshore boats. All Turboprops are polished stainless steel, designed and built for high performance for all Yamaha outboards. They are manufactured by Yamaha Marine Precision Propeller Industries, Inc., a wholly-owned subsidiary of Yamaha.. MAR-14423-FR-E0 - FUSION 14 1/2 X 23 R4