This Polastorm SEMA aluminum propeller for Honda 8–20 hp 4-stroke is a fixed, 3-blade propeller for outboard motors. The variant has a diameter of 9 1/4", a pitch of 11", and 8 splines.
The propeller size 9 1/4 x 11 indicates a 9 1/4" diameter and 11" pitch. The propeller is designed for a 2 1/2" gearcase. The gearcase measurement is a compatibility and mounting dimension, not the propeller's outer diameter.
Compatible engine models
The propeller is designed for Honda outboard motors of 8, 9.9, 15, and 20 hp with a 4-stroke engine, 2 1/2" gearcase, and propeller shaft with 8 splines. The documented engine group includes Honda BF8 from 2000, BF9.9 from 1988, BF15 from 1991, and BF20 from 2003.
The propeller is made of aluminum. Polastorm's aluminum propellers are manufactured using APC precision casting in a heat-treated aluminum alloy and finished with robotic, corrosion-resistant powder coating.
Always check the engine model, year, gearcase, spline count, and the dimensions of the existing propeller before purchasing.
Key featuresFixed, 3-blade aluminum propeller
Diameter: 9 1/4"
Pitch: 11"
Propeller shaft: 8 splines
For 2 1/2" gearcase
For Honda 8–20 hp 4-stroke
Series: SEMA
