ALUMINUM PROPELLER 7.25X5 RIGHT

Function and technical context

The right 7.25x5 aluminum propeller is the direct propulsion element of the outboard motor, responsible for converting the mechanical power of the crankshaft into traction through controlled rotation in the water. In small displacement engines such as 5 hp, the propeller works in the final drive system, coupled to the tail shaft and designed to provide the optimal balance between thrust and speed in small and medium-sized boats. A propeller in poor condition or poorly sized generates loss of thrust, engine overload, increased fuel consumption and structural vibrations that can damage the gearbox and shaft bearings.

When to replace this part?

The aluminum propellers suffer progressive wear due to cavitational erosion, impacts against submerged objects and marine corrosion, manifesting in loss of maximum revolutions, abnormal vibrations during navigation, noticeable reduction in thrust or metallic noises coming from the tail. It is recommended to inspect the propeller at the beginning of each season and replace it when it presents deformations, cracks, visible erosion on the blades or loss of material; Preventive replacement of worn propellers avoids costly engine repairs and ensures safe and efficient navigation performance.

Equivalent manufacturer part numbers