09796937 - It's build in Belgium so can not look it up. This seems to be the right documentation:
https://www.marineengine.com/parts/mercury-outboard-parts/40-4-cyl/9570790-and-up-bel
This seems to be the right Trim version...
Did you resolve your issue? I am in the same "Boat" hand have the Round Seal version. Need a new electric motor which is build into the housing so need to find the "Round Seal" version or any other hack that woks - just not the Square seal version which will not fit.
How did you solve this??? I have the exact same problem. Round seal and all I can find is the square seal version - also if anyone is in doubt, the Round Seal verson has 63ish mm between the mounting holses and the Square has 61mm so they do not fit
My problem is that the electric motor is...