(Used) 2005 Caterpillar C7, ECM- Serial Number: 15956052IE, Part Number: 240-5302-01, Family Number: 5CPXH0442HBK ESN: SAP20940. Ar.no./CPL: 249-8272. For more information about this item, give us a call. We ship Worldwide!. (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY. ELKTON, MD 21921.