Cummins 3640192 Engine Hand Hole Cover is a replacement cover plate for Cummins engines, used to close the hand hole access on compatible power units. It matches Cummins 6LTAA8.9-C325 and NTA855-P400 engines, ensuring proper fit with the hand hole opening. This part, identified by the number 3640192, is intended for maintenance access sealing on those models.
