Driver Shaft Nut Model: 901-7908M-06-00, 9017908M0600, 901-7908M-06, 9017908M06 Compatible with outboard motors from 8HP to 20HP, 2-stroke and 4-stroke Suitable for outboard models: 9.9, 13.5, F9.9, F13.5, FT8, FT9.9, 15, F15, F20, F8