MerCruiser 98704A3 98703A3 Alpha One Power Trim Cylinders Rams Pistons Arms 470 Complete Upper & Lower Gearcases so I'm guessing it's the

so I'm guessing it's the earliest model of the pans found on 86-96 engines

You get the whole set of 4 of them

1983-1990 ( R / MR / Gen I) - This used cap 94998A4 / 94997C-1

see pictures

91199 /  > 2 Holes on top > No cut-out on coupler end flare

MerCruiser 98704A3 98703A3 Alpha One Power Trim Cylinders Rams Pistons Arms 470 Complete Upper & Lower Gearcases so I'm guessing it's theItem Details Power Trim Cylinders For use with all Alpha One Units (1983 1990) Regardless of Engine (2. 5L 120hp 3. 0L 140hp 4. 3L V6 5. 0L 305 V8 5. 7L 350 V8 etc) However, THIS IS NOT XD Trim Cylinders (14035 1 & 14034 1) These were used basically in for the 1983 1986 models before they started putting the XD trim arms on everything. Please check what numbers are stamped on your cylinders as you will need to swap the lines from yours to these ones,