(Used)2013 CUMMINS ISX, ENGINE ECM- Serial Number: A26104366, Part Number: P3684009-RX, DC: 1317, E/C: AB10419.23, SC: 11187 Family Number: DR1680-RX Displacement: 15L Horsepower: 450 Ar.No. CPL: 8520 ESN: 60808086 Part Number: 4018419 Engine: P-37449, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921