copy of MULTI-C PROPELLER ALUM.AMITA3 11.40X12 RIGHT

Function and technical context

The propeller is the fundamental propulsion element of the marine engine, responsible for transforming the engine's power into direct thrust to move the boat. It works in the transmission system, coupled directly to the engine output shaft, and constantly interacts with the water through its blades. Its performance directly affects the maximum speed, acceleration, fuel consumption and loading capacity of the boat. A worn, damaged or misadjusted propeller reduces propulsion efficiency, generates excessive vibrations in the drive shaft and can cause cavitation, a phenomenon that deteriorates the engine through microscopic implosions in the water.

When to replace this part?

Noticeable changes in the engine rpm at maximum power, loss of top speed, formation of cracks or visible deformations in the blades, and abnormal vibrations in the transmission are indicators that the propeller requires immediate replacement. It is recommended to check the condition of the propeller at the beginning of each navigation season and after impacts against submerged objects; In intensive navigation conditions, a visual inspection every 200-300 hours of operation is advisable. Preventive shifting prevents offshore failures and protects expensive marine drivetrain components.

Engine Compatibility Table

Equivalent manufacturer part numbers