2001 Allison 1000 SERIES, Truck Delivery, Transmission Assys, Fits to: Freightliner MT55 Chassis, (Used) 2000 Allison, (AT), TRANSMISSION ASSEMBLY- Model: 1000 Series, Part Number: E004506, Serial Number: 9620012786, Engine: Cummins ISB, 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# 9620012786, Casting# 9620012786, Truck Year 2001 4UZAA5BW51CH64635