MerCruiser 1547-5523A18 Pre-Alpha One Upper unit gearcase housing Sterndrive Grab Handles 312781 / 0312781 Water Pump

312781 / 0312781 Water Pump To Thermostat Housing Hose

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1408611 THRU 1916138 → STATOR PLATE ASSEMBLY

but every engine is slightly different

Clamp Bracket Port: 1458-2328A1

MerCruiser 1547-5523A18 Pre-Alpha One Upper unit gearcase housing Sterndrive Grab Handles 312781 / 0312781 Water PumpItem 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