2021 Detroit DT12-OA, Truck Tractor, Transmission Assys, Fits to: Freightliner Cascadia 116, (Used) 2020 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-OA, Serial Number: 715384G2337732, Part Number: C07-00052-090, 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# 715384G2337732, Casting# 715384G2337732, Truck Year 2021 1FUBHSDV0MLMN4619