(Used) 1999 Cummins ISX, ENGINE ECM- Remanufactured Part Number: 3681405-RX, Serial Number: A27035057, D/C 0624 Family Number: YCEX, Displacement: 15L, Horsepower: 500, CPL: 2629, ESN: 14007055, E.C.S.: PCM, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921