2012 Allison 1000HS, Truck Delivery, Transmission Assys, Fits to: International DuraStar 4300, (Used) 2011 Allison (AT), TRANSMISSION ASSEMBLY- Model: 1000HS, Serial Number: 6311061493, Engine: International MAXXFORCE 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, Serial# 6311061493, Casting# 6311061493, Truck Year 2012 1HTJTSKLXCH615551