Robert, when you're in a hole, stop digging!

Info on HDF is usually accurate, but I never make a purchase w/o talking to the mfgr or vendor. As mentioned, call (not email) MCC about their switch compatability.
If you call, it's more likely you can get a clear answer.

Carl

 

FYI. OEM Switch cannot be bought separately according to my local Harley dealer. That is one expensive repair if the switch on the heated seat ever goes bad.