Need help with Mercury 25XD - Serial Number inside

[blah7]

Trying to find replacement parts for my Motor. Serial is A147629.

When looking online, they usually tell me to select between these options for that motor:
6443973 THRU 0B238463
7209533 THRU 0A730006
9415101 THRU 9507380

Not sure which one I fall into.

I also need to know the year it was made, if possible.

Much thanks.

 

[Fun Times]

MERCURY (25 H.P. EH (1985) Serial No: 0A147629 Model No: 1025575

Parts catalog Number 90-13286 - 18/20/25 H.P. (XD),
http://www.mercruiserparts.com/selectDocs.asp?doc_nbr=13286

Service manual part number 90-435093 - 18/20/25

 

[blah7]

I ended up bringing it to a shop. Couldn't find parts for it, the one I did find were outta stock on backorder.

The problem, from what they told me, is that it was an exhaust seal blown. (For those with similar problems).