Includes all seals, o'rings, bearings and gears for the lower unit.
Mercury / Mariner 3.0 liter outboards (Fleetmaster units only)
1.62:1 ratio 13 / 21 tooth count
1999 - 2006 units with 3.265" OD & 1.750" ID forward bearing
Single upper driveshaft bearing
Ratcheting clutch