Propeller for Bi Drive Z-Power Outdrive 4 Blade

(1) 5018.1.FL propeller.  
See red arrow in picture 2 for the part this replaces.

Includes: 
4 Blade Nylon Prop ( see picture for rotation)
No screws

Specs:
Glas filled nylon
Diameter: 42mm 
Shaft Size: 6mm

Note: Due to the style of the drive dog, this only works with the Bi Drive.