STAINLESS STEEL PROPELLER 15.3x19 LEFT 48-13701A46

Function and technical context

The propeller is the fundamental propulsion element of the marine transmission system, responsible for converting engine power into direct thrust. This stainless steel impeller works on the output shaft of the Mercruiser engine, transmitting the rotation of the crankshaft to the water to generate controlled traction of the boat. Its stainless steel construction guarantees maximum resistance to saline corrosion and erosion caused by cavitation, critical factors in marine navigation. The left-turn design ensures correct compatibility with specific reverse transmission systems, avoiding erratic behavior in maneuvers and maintaining the directional stability of the vessel.

When to replace this part?

The propeller should be inspected periodically for cracks, warping, cavitation damage, or loss of material in the blades, symptoms that dramatically reduce propulsive efficiency and can cause dangerous vibrations. It is recommended to check the condition of the propeller at the beginning of each sailing season and after any impact against submerged objects, rock or sand. Preventive replacement at the first signs of wear prevents failures at sea, loss of maneuvering control and secondary damage to the shaft and support bearings.

Equivalent manufacturer part numbers