Model#? General Advice/HELP!!!!!

[bfriendly]

I have a '94 Mercury ob, 90hp(3cyl).

My power trim unit FRIED(Motor) while the boat was parked. The local guy down the street wanted $847 for an entire new unit.......OBVIOUSLY if I am sporting this Engine on an old Procraft F/S, I have NO $.

I ordered a New Motor for $250, turning pump, but not working the cylinder, so I had the Cylinder checked out......it is fine and they put on new Seals for the agreed $90 Diagnostics Fee. still does not work and a piece of plastic came out of the lower drain plug-found by the cylinder place. They said if they had Schematics for the Pump itself, they "MAY" be able to help

I think I found the entire unit for $563 on this website(which brought me to this forum), but cannot find my model Number...Serial Number is OGO39215.

Please help. I have not been fishing this whole summer and am really missing all the fun.

THANKS for any help!

[boats.net]

Model number is 109412PD Mercury Outboard Parts 1994 1090412PD

[bfriendly]

Thank you. I also cannot find my Serial Number that would match any of the serial numbers on the parts lists......WHERE do I find my serial number? Is there a different serial number for the trim unit versus the Engine itself?
Thanks again.

[boats.net]

It should be the serial number(0G039215) on transom bracket.