Ac main switch/breaker

Jul 7, 2004
8,496
Hunter 30T Cheney, KS
My '91 30T has what looks like a 3-gang SPST AC Main breaker/switch on the AC/DC control panel. One of the lugs on one of the breakers is loose and there is evidence of heat on the terminal. Where can I find an OEM style replecement? I've looked on the SBO parts listing.