Multi-d Aluminum Propeller AMITA3 13.3X17 Right Hand 2411-133-17

Function and Technical Context

The aluminum propeller AMITA3 series, reference SOL2411-133-17, is the propulsion element that converts the torque of the outboard motor into effective thrust on the water, constituting the final link in the kinematic chain between the engine and the aquatic medium. With a diameter of 13.3 inches and a pitch of 17 inches, right-hand rotation, this three-blade propeller is specifically designed for OMC and Selva engines, offering a balanced distribution between acceleration response and cruise speed performance. Its variable-pitch aluminum construction provides an optimal relationship between structural resistance and weight, maintaining hydrodynamic efficiency in the power range for which it was designed. Deterioration of the blades—whether from deformation, cavitation, or impact—directly compromises the thrust coefficient, skyrockets fuel consumption, and subjects the gearbox, seals, and tail bearings to abnormal stresses that accelerate premature wear.

When to Replace This Part?

The clearest indicators that the propeller needs replacement are: perceptible vibrations in the shaft or transom at different engine speeds, loss of maximum speed or throttle response, and visible damage to the blades such as nicks, bends, or deformations caused by contact with submerged objects or rocky bottoms. It is recommended to visually inspect the propeller at each seasonal tune-up and immediately after any impact, since even apparently minor deformation alters dynamic balance and causes asymmetrical loads on the hub and internal transmission components. Replacing the propeller at the first sign of damage is the most cost-effective decision: prolonged use of a damaged propeller leads to failures in the motor's lower unit whose repair is considerably more expensive.

Compatible Johnson/Evinrude Engines

Equivalent Manufacturer References