2021 Detroit DT12-OA, Truck Tractor, Transmission Assys, Fits to: Freightliner Cascadia 116 Day Cab, (Used) 2020 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-OA, Serial Number: 715384G2337429, Part Number: C07-00052-089, 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# 715384G2337429, Truck Year 2021, VIN 1FUBHTDV0MLMM5067 1FUBHTDV0MLMM5067