Sealing oil leaks?

[Kajtek1]

I found NAPA Solenoid. Might be the same Lang's is selling, just different label.
The switch doesn't care what voltage you use it for. I am taking a chance with the switch above, who is electronic switch with unknow amp rating, but coming from China it is very cheap. It is flat, so I can glue it anywhere.
Any other switches are much taller and would have require drilling a hole.
On edit
I found Lang's is also having starter switches, who I hope will operate ignition like the old one. No good description, so I posted a question.
My original ignition switch is beaten up, so maybe I will go this route.