2017 Detroit DT12-OB, Truck Tractor, Transmission Assys, Fits to: Freightliner Cascadia 125, (Used) 2016 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-OB, Serial Number: 71536401725169, Part Number: C07-00052-056, Engine: Detroit DD13, 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# 71536401725169, Casting# 71536401725169, Truck Year 2017 1FUJGEDV8HLJA5886