2007 Mack E7, Truck Tractor, Engine Assys, Fits to: Mack CXN613, (Used) 2006 Mack E7-355/380 ENGINE ASSEMBLY- Family Number: 6MKXH11.9H59, Serial Number: 6B3389, Displacement: 11.9L, Horsepower: 355/380, Reference imagines 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, Horse Power 330, Serial# 6B3389, Truck Year 2007 1M1AK06Y17N015003