STAINLESS STEEL PROPELLER 15.3x19 RIGHT 48-13700A46

Function and technical context

The stainless steel propeller is the fundamental propulsion element that transforms the power of the engine into direct movement of the boat. This 15.3" pitch and 19" diameter propeller works in the propulsion system, coupling directly to the output shaft of the Mercury, Mariner or Mercruiser engine. Its geometry and right rotation are designed to optimize hydrodynamic efficiency in recreational and professional boats, balancing cruising speed with initial acceleration. The stainless material ensures long-lasting resistance in coastal navigation environments where corrosion is a constant threat, preventing premature degradation that would compromise both navigation performance and safety.

When to replace this part?

A propeller requires replacement when it presents symptoms such as abnormal vibrations during navigation, progressive loss of maximum speed, audible cavitation (characteristic bubbling noise), or visible damage such as cracks, bending or erosion on the blades. It is recommended that the propeller be inspected at least once a year or after each active boating season, especially if it has been navigated in debris-laden waters or has suffered impacts from submerged objects. Preventively replacing a worn propeller prevents engine overloads, fuel losses and costly propeller shaft repairs.

Equivalent manufacturer part numbers