As mentioned, Kooima has lots of substitute parts. For KP rolls I would talk to Scherer. They have complete replacement KP's for Claas, don't know about Deere. They are terrific to deal with, unbelievable service. We have one of their complete processors, when the rolls wore they picked it up from our farm, rebuilt it, and delivered it back to our door and only charged for the parts. I can't praise Scherer enough.

http://www.scherercorrugating.com/