MULTI-D PROPELLER ALUM.AMITA3 13X19 RIGHT

Function and technical context

The propeller is the direct propulsion element of the marine engine, transforming the power of the crankshaft into thrust through the water through its blades. With 15 fixing splines, it ensures a firm and slip-free coupling on the transmission shaft, guaranteeing full transfer of engine torque to the propulsion of the boat. Its 13-inch diameter and 19-inch pitch place it in the application range for medium-power motors in outboard systems, where thrust efficiency is critical to maintaining speed and maneuverability. A failure in the coupling or deterioration of the blades causes loss of traction, abnormal vibrations in the transmission and excessive fuel consumption.

When to replace this part?

Aluminum propellers exhibit accelerated wear due to cavitation, marine corrosion and impacts against submerged objects; Typical symptoms include pronounced vibrations at cruising speed, loss of thrust despite normal engine power, and presence of spot corrosion or erosion on the leading edges of the blades. It is recommended to inspect the condition of the propeller at least once per sailing season, especially after strandings or impacts, and replace it preventively if more than 10% of material loss or blade deformation is observed. A preventive change prevents a complete propulsion failure from leaving you immobile in a risk zone.

Equivalent manufacturer part numbers