Jim,

The easiest way to locate new Cessna parts is www.cessnaparts.com [cessnaparts.com] however, you will need the parts book if you don't know the part number of what you are seeking. This is the website for Hill Aircraft in Georgia, and they have current and discontinued stock. In a pinch you can call them 1-800-998-7832, and they can look up the part number for you.

If you don't have a parts book, you can get a PDF version for only $20 at http://www.mccurtaintg.com/cessna1.htm

Once you know Hill's price and availability, you can look elsewhere for a better deal or salvage etc if you wish, but I have had very good service from Hill over the years.