2016 CAT XG400 Cylinder heads changed at 10528 Hours. , *CONTINUOUS POWER APPLICATION, 60 HZ, BATTERY CHARGER, BATTERY DISCONNECT SWITCH, CAT BRAND GENSET, CONTINUOUS, COOLANT HEATER, GENERATORS, NATURAL GAS, Online Owner's Manual , TRAILER MOUNTED, TRANSPORTABILITY, U.S. EPA TIER 2 FOR LARGE NON-ROAD SPARK-IGNITION ENGINES,