Brand New Aftermarket Upper Gear Set 43-75325A3(17 & 19 teeth)(1.84:1) 43-75325A3 Gear Set = 43-853643 (17 teeth) + 43-821824 (19 teeth) SIMILAR ITEM NUMBER: Sierra No.: 18-2204 GLM No.: 11230 Fit on: Mercury Mercruiser MC-I, R, MR, Alpha I and Gen II drives ALPHA ONE GEN II STERNDRIVE AND TRANSOM ASSEMBLY - ALPHA ONE (GEN.II) 1996-1997 ALPHA ONE GEN II STERNDRIVE AND TRANSOM ASSEMBLY - ALPHA ONE (GEN.II) 1991-1995 R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Transom Assembly) 1983-1990 R/MR ALPHA ONE STERNDRIVE - R/MR/ALPHA ONE (Sterndrive) 1983-1990 .
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