2012 Cummins ISL9, , ECMs, Fits to: , (USED) 2012 CUMMINS ISL9 450 ENGINE ECM- Serial Number: 180921, Part Number: 4993120, ECM Code: C399923.12, D/C: 10/23/12, ESN: 73462785 Engine Family # CCEXH0540LAQ Engine HP: 450 Displacement: 540/8.9L CPL/AR:3689 E.C.S.: EGR, PTOX, SCRC Engine: P-21853 To find out more about this item, give us a call. We ship worldwide! Complete Recycling Group (CRG) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 180921, Truck Year 2012, Part# 4993120