2019 Detroit DT12-OA, Truck Tractor, Transmission Assys, Fits to: Western Star 5700, (Used) 2018 Detroit (AT), TRANSMISSION ASSEMBLY- Model: DT12-OA, Serial Number: 71538462119315, Part Number: C07-00052-090, A 960 260 72 02, Engine: Detroit DD15, 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# 71538462119315, Casting# 71538462119315, Truck Year 2019 5KJJBHDR1KLKU4654