Mercury Mercruiser - Upper Gear Kit - Fits Alpha One Gen II, Vazer Drive - 43-853643A2 Yamaha-F90-2003 Material: Cast from marine-grade aluminum

Material: Cast from marine-grade aluminum alloy for long-lasting corrosion resistance

Moisture proof sealing ring around the shaft to keep out spray and make it seat firmly in the outlet

Designed for flybridge and open cockpit applications

55 HP (3 cylinder)

Mercury Mercruiser - Upper Gear Kit - Fits Alpha One Gen II, Vazer Drive - 43-853643A2 Yamaha-F90-2003 Material: Cast from marine-grade aluminum7"19 teeth, 1. 81 ratio Alpha One Gen II; 2. 58 ratio Vazer Fits: Alpha One Gen II (s n 0L000040 and above) (1998 & newer) Vazer drive WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.