(Used) 2020 Allison (AT), TRANSMISSION ASSEMBLY- Model: 2100HS, Serial Number: 6311870487, Engine: Cummins ISB 260; B6.7, 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