Interesting that they (
https://www.sewingpartsonline.com/pr...trol-032270116 ) guarantee that it will fit the 158.18150 even though it doesn't have the notch like #6817
https://www.sewingpartsonline.com/pr...d-kenmore-6817 which is unfortunately not available.
I guess they have a disclaimer
Some machine models have changed the style of foot control they use through the years of their production. Please compare our picture of the end of the cord with the configuration of the spot where the plug goes into your machine. If you are unsure it will match, please email us a clear picture of where the plug goes into your machine and we would be happy to assist you.
I'm wondering if you have someone that could possibly test it with a multi meter and make sure that that is the problem with the machine. I don't know how to use one, but from my understanding it is possible.
https://www.reddit.com/r/AskElectron...ith/?rdt=41685 I think I would do some more research into testing with a multi meter and perhaps someone who is more familiar with this type of thing. Maybe someone more familiar will jump in and confirm or deny it is possible and advised.
It isn't the most wanted solution, but I think that if the plug is half way decent that one could splice the cord with new wiring for the foot controller and wall plug.