Hi @tccasazza ,
The power button is mounted on the audio/power button board and I’m not sure that it is available as a separate part. Are there any markings on the switch itself which may help in identifying its’ make/ model/ voltage-current rating etc?
Here’s a link to a video that shows how to remove the board. (Apologies as you know probably know this already)
Here’s a link to a supplier of the part.
A search online reveals that there are other suppliers of the board, but they all state “out of stock”.
Hopefully this is of some help.