How to find model number for a Mercury Classic Fifty

[holger]

Hi

I have a Mercury Classic Fifty 45hp that needs some new parts. I have found a site that provides what i need, I hope, but i need the model number. How can i find this with only the serial number?
The serialnumber is 9459891.

I hope somebody can help me out

Best regards
Holger
Norway

[boats.net]

Here is the link to parts diagram,
Mercury Outboard Parts 45 (4 CYL.) 9248006 THRU 9466691