Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.94 gear ratios only.
For use with 1-15/16" OD top cap bearing.
9-9/16" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.65 gear ratios only.
For use with 1-15/16" OD top cap bearing.
9-9/16" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.65 gear ratios only.
Uses SEI's exclusive heavy duty gear set. Recommended for V8 engines.
For use with 1-15/16" OD top cap bearing.
9-9/16" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.81 gear ratios only.
For use with 1-25/32" OD top cap bearing.
8-1/8" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.94 gear ratios only.
For use with 1-25/32" OD top cap bearing.
8-1/8" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.65 gear ratios only.
For use with 1-25/32" OD top cap bearing.
8-1/8" long input yoke.
Includes all seals, o'rings, bearings, gears and shafts for the upper unit.
Fits most Mercruiser I, R, MR and Alpha I upper units.
1973-1990.
For 1.65 gear ratios only.
For use with 1-25/32" OD top cap bearing.
9-9/16" long input yoke.