OEM Upgrade 835257Q1 Flo-Torq II Hub Kit Fit for Mercury 135-300 HP, Mercruiser Alpha Bravo One Drives,Replacement for Quicksilver Flo Torq II Hub Kit ? Product Description Replaces OEM No.: 835257Q1 /835257K1 ? Outboard Engine Application: Fit Mercury 60-300HP,15 spline, Replaces OEM Numbers: 835257Q1 Fit MerCruiser 120-375hp Alpha and Bravo One Sterndrives Fit Mercury / Mariner 135-250 HP Fit Verado 200-300 HP Fit Mercury / Mariner 75 HP 1984 & Newer, 90 & 115 HP 1978 & Newer, 125 HP 1994 & Newer Fits Alpha and Bravo One Sterndrives Mercury / Mariner 75 HP 1984 & Newer 90 & 115 HP 1978 & Newer 125 HP 1994 & Newer Does not fit Mercury/Mariner 1977 and older Also fits Michigan Wheel and Mercury interchangeable propellers This hub kit will fit all Mercury made propellers that accept Flo-torq II ? Features: The Flo-Torq II Hub also has features to prevent damage to the propeller, such as when the propeller hits shallow water or an obstacle, it automatically disengages to avoid further damage. The Flo-Torq II Hub features a unique spring design that reduces propeller vibration during operation for smoother sailing. OEM: 835257Q1 835257K1 835257A1 ? PACKAGE Hardware kits For Boat Outboard (As Picture Showed)