Lexor 15.1X18 Right Hand Propeller

Function and technical context

As the terminal element of the propulsion line, this cast aluminum propeller with a diameter of 15.1 inches and a pitch of 18 inches converts engine torque into effective hydraulic thrust, directly determining the vessel's cruising speed, engine operating regime, and fuel consumption. Its right-hand rotation—clockwise as viewed from astern—makes it specifically suitable for installations on the transmission tail shaft of medium-power outboard motors, where the blade geometry and pitch angle are optimized for the RPM range of the Lexor propulsion unit. Inadequate pitch or damaged blades not only reduce thrust: they force the engine to operate outside its optimal RPM band, accelerating wear on the gearbox bearings, shaft seals, and the transmission shaft itself.

When to replace this component?

The clearest signs that the propeller requires inspection or replacement are: noticeable vibrations in the hull or throttle control at various engine speeds, inability of the engine to reach maximum RPM under full load, marked loss of top speed or response during docking maneuvers, and visible damage to the blades such as bending, cracks, cavitation erosion, or loss of section. It is recommended to visually inspect the propeller at each haul-out or at the start of the boating season, and immediately following any contact with the seabed, lines in the water, or submerged objects. Replacing the propeller at the first sign of imbalance or deformation prevents progressive damage to the shaft seal and tail bearings, failures that multiply repair costs and may leave the vessel out of service at the most inconvenient time.

Equivalent manufacturer references