(Used) 2003 CATERPILLAR C10, ENGINE ECM- Part Number: 239-3879-00, Serial Number: 315360281K, Engine Information- Displacement: 10.3L, Horsepower: 350, Serial Number: MBJ04587, Part Number: 7E-8050 01, 2 Rectangular Plugs with 70 Pins each, 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