(USED) 2009 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2500PTS, Serial Number: 6310940811, Engine: Cummins ISB 175, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921