MerCruiser 45-42634 Sterndrive Driveshaft Alpha One Gen 1 MR Lower Unit Gearcase Lower Unit Widely used in MerCruiser platforms

Widely used in MerCruiser platforms 1987-2005 (likely even to present) (2

5hp (S/N 2529895 Thru 3801457) / Mercury 60 6hp (1916139 THRU 2529894)

Compatibility on this isn't exactly clear as it was used in conjunction with other models that had molded hose retainers

Found on Johnson / Evinrude Models 1968-1971 (And Possibly Others)

MerCruiser 45-42634 Sterndrive Driveshaft Alpha One Gen 1 MR Lower Unit Gearcase Lower Unit Widely used in MerCruiser platformsItem Details MerCruiser Lower Unit Drive Shaft 45 42634 used in all MerCruiser MR & Alpha One Gen I lower units 1983 1990 <<< Please make sure that the one you are replacing does not have a pre load pin**** If you are looking for one with a preload pin (1970 1982), please contact me and I should be able to help. Very little Normal wear on the splines. I left the bearing on here, it should be good, but you will want to check it before installation and