I have a 2008 John Deere 4120 CUT tractor and John Deere does not make the part for my tractor. The dealer was informed they are not making parts for it anymore. The part is the PTO valve module. When told this I wondered what the hell. The dealer did say that for now they can get the parts to rebuild it, springs ,valves, pistons, O-rings and more. Lucky for me the body was okay. I got that tractor because I wanted a tier 3 and not the tier 4. Called Stiner for parts and they said only for really older tractors and this was too new. So I asked dealer what would I have done if not for getting parts to fix it and he said "not a thing". He said parts are only available until they are all gone. Are all tractor dealers getting like this. I know they have after market for cars, trucks but when you spend a lot for a tractor you expect to get parts when needed. My dealer checked with all dealers of tractor parts and even Deere's remand plant but none. He even checked with salvage yards but no luck. Have any of you had the same problem.