ALUMINUM PROPELLER 7.8X8 RIGHT

Function and technical context

The 7.8x8 aluminum propeller is the fundamental propulsion component that transforms the mechanical power of the engine into movement of the boat through controlled rotation in the water. This propeller works directly coupled to the engine's drive shaft, propelling the fluid backward to generate forward traction. The 7.8-inch diameter and 8-inch pitch are sized to optimize the balance between acceleration and speed in small displacement outboard motors. Its right-hand configuration (clockwise rotation) ensures compatibility with the gearbox of the specified engines, being critical to maintain propulsion efficiency and avoid vibrations that could damage the structure of the engine and the boat.

When to replace this part?

The aluminum propeller requires replacement when it presents visible deformations, radial cracks, loss of material in the blades, or progressive erosion that affects the geometry; These symptoms cause a notable reduction in thrust, increased vibrations and excessive fuel consumption. It is recommended to inspect the propeller at the beginning of each boating season and check it after impacts with submerged objects, dense algae or shallow bottoms. Preventively replacing a worn propeller prevents overloading of the engine, protects the gearbox and guarantees predictable and safe behavior of the boat in navigation.

Equivalent manufacturer part numbers