Sierra Clutch Cross Pin Spring Special Order est. 10 Days; For use on Mercury/Mariner Outboard Engines 70, 75, 80, 90, (serial # A996142 & later), 100, 115, 125, 4 cyl. (serial # B209468 & later), Mercruiser - MR/Alpha I/O, 1MC-1/R/MR/Alpha Mercruiser/Gen II lower S/N D469859-F679999, Mercruiser Vazer.; Replaces: 24-30893; O.E.M. # 24-30893;