Ben
Is that a 3 section toggle switch? Those might be really hard to come by. Have you checked with Don Nieser at Commodore Aero?
Original part #S1790-1 replaced by S1790-1-1
http://www.cessnadirect.com/s1790-1.html
Yingling indicates it is out of stock. I checked a few other sources and don't come up with anything. Call Don.......