Brand New Aftermarket Outboard Gear Kit 43-8828121314-FF It is included Pinion Gear 43-882812; 12T                       Forward Gear 43-882813; 28T                       Reverse Gear 43-882814T;28T Fit on: MERCURY Outboard Engine 30, 40, 50, 55, 60, 75, 90, 100, 115, 125 HP30 40 CARB 4-STROKE (3 CYLINDER)    40 50 60 EFI (4 CYLINDER) 4-STROKE    40 50 60 EFI (4 CYLINDER) 4-STROKE    55 60 JET 40 (3 CYLINDER)    55 60 JET 40 45 (3 CYLINDER)    75 90 (4-STROKE)    75 90 115 125 DFI 1.5L (3 CYLINDER)    75 90 115 DFI    75 90 115 DFI 1.5L (3 CYLINDER)    75 90 115 DFI 1.5L (3 CYLINDER)    75 90 H.P. 65 JET (3 CYLINDER)    75 90 HP 65 JET (3 CYLINDER)    100 115 125 HP 80 JET (4 CYL)    115 125 HP JET 80 (4 CYLINDER)(2-STROKE)