2013 Mack MP8, Truck Tractor, Engine Assys, Fits to: Mack CXU613, (Used) 2012 Mack MP8, ENGINE ASSEMBLY- REMANUFACTURED- Displacement: 12.8L, Horsepower: 415, Serial Number: 89038532, Part Number: 85003631, 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 415, Serial# 89038532, Casting# 89038532 1M1AW09Y6DM035250