I just told you it was not there. The thing that is visible the circuit breaker part# is in post 34. I bought a two post today and the one jd says is installed Looks like a regular solenoid not that circuit breaker and I got down and looked the best I could under the tractor and there is not a hidden solenoid. I got no idea where where it is or if they removed it when they did that starter improvement kit or or what.That also looks like a relay which is another (more proper) name for a solenoid. Solenoid is really the electromagnet coil.
There is no way they are running starter current through the key switch and/or safeties. There is a big relay with big wires that go to the starter and battery that make the starter go, which starts the engine. It probably takes on the order of 100A to do that. That would burn up the contacts in a key switch the first time you tried it.