ALUMINUM PROPELLER 15.50X17 RIGHT 48-18278A46

Function and technical context

The aluminum propeller is the propulsion element that transforms the power of the engine into forward movement of the boat. In this right-turn configuration with a 15.50" diameter and 17" pitch, it works coupled to the tail shaft to propel the water backward, generating the necessary thrust. This part is critical in the propulsion system, since any defect in its geometry, imbalance or deformation causes vibrations, loss of performance, excessive fuel consumption and possible damage to the bearings and the drive shaft.

When to replace this part?

Aluminum propellers wear out due to cavitation, marine erosion and micro-cracks after hours of continuous navigation. Typical symptoms include unusual vibrations at cruising speeds, reduced performance even though the engine is developing normal power, and changes in fuel consumption. It is recommended to inspect the propeller before each sailing season and replace it if it shows deep pits, deformations in the blades or partial breaks. Preventive replacement of a damaged propeller prevents engine overload and costly tailshaft repairs during the sailing season.

Equivalent manufacturer part numbers