ALUMINUM PROPELLER 15.3X19 RIGHT 48-13700A46

Function and technical context

The 15.3×19 aluminum propeller is the fundamental propulsion element that transforms the power of the Mercury engine into movement of the boat. Mounted on the tail shaft, it works in the marine propulsion system, propelling water backward to generate the thrust that moves the ship. Its right-hand turn design is optimized for engines from 135 to 300 hp with Command Thrust system, guaranteeing efficient power transmission during cruising and acceleration. The condition and balance of the propeller are critical: a worn, damaged or poorly balanced propeller causes excessive vibrations, reduced performance, loss of speed and increased fuel consumption, in addition to increasing structural fatigue of the shaft and bearings.

When to replace this part?

Aluminum marine propellers require periodic visual inspection at each seasonal maintenance: look for cracks, blade deformations, galvanic corrosion or metal loss. If you detect abnormal vibrations during navigation, a progressive reduction in maximum speed, or if the propeller has been impacted by submerged objects (rocks, logs, nets), replacement is mandatory to maintain safety and performance. Prevention is economical: changing a damaged propeller avoids costly repairs to the shaft, bearings and couplings at sea or in port.

Equivalent manufacturer part numbers