2012 PACCAR MX, Truck Tractor, Engine Assys, Fits to: Kenworth T800, (Used) 2011 PACCAR MX13, ENGINE ASSEMBLY- Family Number: BPCRH12.9M01, Displacement: 12.9L, Horsepower: 485, ESN: A064862, PartNumber: 1859847, 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, Horse Power 485, Serial# 1859847, Casting# 1859847 1XKDDP9X3CJ311097