My new seat cost me $25 to cover the shipping and had to turn in my old seat. New seat is much more comfortable.The different $ may reflect different shipping costs as it seems that in previous posts there was a price range for the seats. You might get a lot more information if you searched the site.
Am I glad I stumbled onto this discussion....... I have been sliding down in my old seat for the last year and a half, so I called my dealer after reading this discussion and picked-up my new seat a couple of hours later. Cost me $35. This is the only flaw I had found in my otherwise perfect (for me) tractor. Kinda makes me want to go dig a hole somewhere now.