Fits 1983-1990 Mercruiser "MR" & Alpha I style lower.
This lower has no preload pin on the driveshaft.
For gearcases using a forward gear bearing with 3.500" OD and 1.875" ID
Includes all seals and bearings for the lower unit.
SEAL & BEARING KIT Fits Mercruiser Repair Kit 93-106-700K