2018 Detroit DT12-DA, Truck Tractor, Transmission Assys, Fits to: Freightliner Cascadia 125, (Used) 2017 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-DA, Serial Number: 71537401782923, Part Number: C07-00052-049, 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# 71537401782923, Casting# 71537401782923, Truck Year 2018 3AKJGLDR9JSHU4738