Aluminum Propeller 9.30X7 Right Hand 4111-093-07A

Function and technical context

This 9.30-inch diameter, 7-inch pitch aluminum propeller with right-hand rotation acts as the final element in the propulsion chain, converting the rotational torque of the tail shaft into hydraulic thrust on the water. Specifically designed for 15 HP outboard motors, its blade geometry balances traction during acceleration with efficiency at cruise speed, making it particularly suitable for lightweight boats, semi-rigid craft and small recreational vessels. The clockwise rotation viewed from the stern—conventional in the vast majority of single-engine installations—makes it directly compatible with the standard output shafts of Johnson, Evinrude and Suzuki outboard units listed in the applications table. A damaged propeller or one with incorrect pitch forces the motor to operate outside its optimal rpm band, increasing fuel consumption, generating vibrations that accelerate wear on the thrust bearing and impact-resistant hub, and reducing the service life of the water seal of the propulsion unit.

When to replace this part?

The clearest signs that the propeller requires replacement are noticeable vibrations in the motor foot at any rpm, loss of planing ability or top speed without apparent engine cause, persistent cavitation accompanied by irregular noise in the propulsion unit, and the presence of dents, bends or visible erosion on the blades when inspected out of the water. It is recommended to visually inspect the propeller at the beginning and end of each boating season, as well as immediately after any contact with the bottom, rocks or submerged objects. Acting preventively at the slightest blade deformation avoids progressive secondary damage to the impact-resistant hub, the propeller shaft and the internal seals of the outboard, repairs significantly more costly than simple propeller replacement.

Compatible Johnson/Evinrude Motors

Equivalent manufacturer references