This Polastorm Megara aluminum propeller is a 3-blade, right-hand rotation propeller with a diameter of 13 1/4″, a pitch of 17″, and 13 splines. It is designed for compatible Johnson, Evinrude, and Selva outboard motors as well as selected OMC drives with a 4 1/4″ gearcase.
The propeller is made of aluminum with a black finish and has a fixed, pressed-in rubber hub. The combination of a 13-spline hub, right-hand rotation, and 4 1/4″ gearcase class must match the engine's propeller shaft and installation. The diameter of 13 1/4″ corresponds to approx. 336.6 mm, while the pitch of 17″ corresponds to 431.8 mm.
The propeller size 13 1/4″ × 17″ indicates diameter × pitch. The choice of pitch affects the engine's operating RPM and must be matched to the engine, gear ratio, boat type, and load. Engine horsepower alone is therefore not sufficient to determine compatibility.
Compatible engine models
Documented Selva applications include 70, 80, 90, and 100 hp 2-stroke engines. Johnson/Evinrude applications include selected engines from 40 to 140 hp, including E-TEC 40, 50, 60, 75, 90, and 115 hp from 2004, E-TEC 55 hp from 2009, and E-TEC 130 hp from 2004 to 2010.
Additional Johnson/Evinrude applications include 45 hp Commercial from 1986, 50 hp 2-cyl. from 1971-1974 and 1977-1979, 50 hp 3-cyl. from 1994-1999, 55 hp Commercial from 1980, 60 hp 3-cyl. from 1970-1971 and 1986-2001, 60 and 70 hp 4-stroke from 1998, 65 hp 3-cyl. from 1972-1973 and Commercial from 1984-2001, 70 hp 3-cyl. from 1974, 75 hp from 1975-1984, 85 hp from 1969-1980 and 1991-1995, 88 hp from 1981-1996, 90 hp from 1981, 100 hp from 1979-1980 and 1988-1993, 110 hp from 1986-1989, 112 hp from 1994-1996, 115 hp from 1973, 120 hp from 1986-1994, 125 hp from 1971-1972, 135 hp from 1973-1976, and 140 hp from 1977-1984 and 1986-1994.
Compatible OMC drives include Model 400 and Cobra at 2.3-3.0 liters as well as Sea Drive at 1.6-1.8 liters. The installation must have right-hand rotation, a 13-spline propeller shaft, and a 4 1/4″ gearcase class. Also, ensure that the existing thrust washer, spacer, and mounting hardware fit the propeller.
OEM and cross-references
The primary OEM reference is 765183, also written as 0765183. The Polastorm reference is 4067-3133-17. Documented cross-references for the same propeller class include EMP P2411-1325-17, Michigan Wheel 011003, Solas 2411-133-17, and Turning Point 21432111. Historical Johnson/Evinrude catalog references include 382764, 391199, 176214, and 177131; these are not documented as a unique supersession sequence.
Always check the engine/drive model, gearcase, rotation, number of splines, propeller size, and original part number before purchasing.
Key features3-blade aluminum propeller
Propeller size: 13 1/4″ × 17″
13 splines
For 4 1/4″ gearcase class
Right-hand rotation (RH)
Fixed, pressed-in rubber hub
Black finish
OEM reference: 765183
Polastorm reference: 4067-3133-17
