Part number S-1483-2 or -1 is what you are looking for. In the manual they show another part number for the bracket. Most of us do not need that but the parts which you will find often include it as they include the whole assembly.
I got one from Avparts in Newnan, GA and a quick search of their inventory shows they still have one in stock. Its the -2 part number meaning it is left handed, which I THINK means it goes on the pilot door. I think I paid around 135$ for it and yes thats what they go for and possibly more if you want a new part. It is getting nearly impossible to find salvage or repaired latches anymore as we are buying them all up. Repairing a corroded or worn assembly is extremely difficult also as finding the individual parts is just about impossible at this point.
Cessna never meant for these little birds to be flying 30-40 years later. We were all supposed to be upgrading!!!
Here is the link to Avparts website....
http://www.av-parts.com/ I have seen the wrong sided parts used and they will still work just fine. I got one from Rex up in Clinton this year and bought a new one from Avparts this summer for the pilot side, since it gets used all the time. The one I bought from Rex is wrong sided and I used it for the pax side with good results. Both my latches were going bad and the pax side was taped shut for a bit.
Good luck with this, its one of those special parts which is getting really hard to find, but which most of us need taking care of these old planes.
