Minn Kota 1/2″ shaft, 3/16″ pin (MKP-33, MKP-38): prop hub dimensions
The fit dimensions PropShaper uses for e-foil and boat propellers on this mount, with the sources behind them. Open it in the studio to design a propeller around this hub and export an STL for printing.
Dimensions
| Shaft bore | ø12.9 mm |
| Drive slot | 5.2 mm wide × 5.5 mm deep across the front face |
| Hub body | ø96.84 mm × 58.74 mm long |
Source quality: Manufacturer drawing or CAD.
Fit notes
Minn Kota MKP-33 drawing: 1/2″ bore, hub ø96.84 × 58.74 (MKP-38 is ø111.13 × 60.33), 3/16″ × 1″ drive pin (2262658); 3/8-24 nyloc nut.
Sources
Every dimension stays editable in the studio, so you can adjust the bore or add a set screw to match your own hardware. Printed props are prototypes: check the fit on the bench and spin them up behind a guard.