MerCruiser 1547-5523A18 Pre-Alpha One Upper unit gearcase housing Sterndrive
Item Description This particular unit has stickers for a Pre Alpha One 888 Ford 302 5.0L V8 gearcase, but the housings are the same no matter what drive/engine you have from that period of 1970-1982 (I-4, I-6, V8 120hp, 140hp 165hp, 2.5L, 3.0L 4cyl, 4.1L 3.7L 170, 470, 898, 305, 350, etc..) The housing is in good condition. The shape of your case should look just like this. Stamped Part Number is 1547-5523 (sometimes 1547-3917 or 1547-5523-S or 1547-7504 ) (Located in the exhaust area on the underside of the case) This is not as important, but rather the case style, Please see last picture. The races are still installed. See The infographic image at the end of this listing to help with your understanding of which empty gearcase you are looking for. Freshwater Used part. Compatibility DRIVE SHAFT HOUSING ASSEMBLY AND GEAR ASSEMBLY (120/140 1970-1977) DRIVE SHAFT HOUSING ASSEMBLY AND GEAR ASSEMBLY (165 1970-1977) DRIVE SHAFT HOUSING AND GEAR ASSEMBLY (120/140 1978-1982) DRIVE SHAF