QuickSilver 835274Q1 Flo-Torq II Hub Kit Yamaha Hub kit makes replacing or upgrading propellers easy For use with Yamaha 150-300 HP 4-stroke outboards and 115-250 VMAX SHO outboards using OEM single piece thrust washer Cushions and protects drivetrain from most impact Reduces vibration and shift noise Increases available propeller selection