I have broken a few of these switches over the years. I have done this by reaching over the generator to retrieve something stored behind the genset.
I received a quote from my Onan dealer and on Amazon for around $90- plus tax which is ridiculous.
I tracked down the OEM manufacturer and the cost is about $23- plus a one time set up fee of about $50- I plan on ordering 2 of these. They stated that they make this for ONAN. If anyone is interested please let me know and I can order them for you $33- each plus USPS of about $8.00.
I will order the switches within a week.
SM 376 Kimberlite