al.. no numbers on my print heads, and turns out they are aftermarket print heads.. and no i've never had these replaced before...
Curious, as to why you believe this head, I assume it is one head, is aftermarket?
Usually the head rank sticker is removed (you can't see it when the head is in the carriage) to enter the head rank through the front panel. In the 'old days' people would just print out the Parameters sheet and tuck in the left side of the machine. Now, it is all available in digital format.
If you have the 'Parameters' you should be able to put those in the new motherboard.