2017 Detroit DT12-OA, Truck Tractor, Transmission Assys, Fits to: Freightliner Cascadia 125, (Used) 2016 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-OA, Serial Number: 71538401673535, Part Number: C07-00052 -054, A 960 260 05 02, Engine: Detroit DD15, 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# 71538401673535, Casting# 71538401673535, Truck Year 2017 3AKJGLDR1HSHT5865