The parts man at our local dealership said that they have been changing everything over to the NH system. Evidently it has casued lot of problems of parts availability and some parts have been misnumbered. The parts guys hate it because parts that have had the same number for years suddenly have a completely new random number. The new numbers are randomly selected and are about 12 digits long. Have you thought about getting your auger reflightedIJ We have a welding and fabricating shop nearby that reflights augers with heavy duty flighting, balances, and straigtens them. We've had them do unloading augers, inclined augers, grain cart augers, etc. The only ones they won't touch are the bottom grain tank augers and those beneath the rotor, because they're too thin. Maybe there's someone in your area that can do that. Good luck.