100% original Caterpillar Engine, to ensure perfect quality, all systems of the generator set are designed, produced by CATERPILLAR company .Crankshaft is the most important part of engine, CATERPILLAR company adopt annealing technology( which is exclusively owned) to ensure the surface hardness of whole crank shaft well-proportioned, also extend service life. Full output just strictly according to the nameplate indicated. Electronic fuel injection system was first developed by CATERPILLAR company. The output of generator set keep normal service in the conditions of environmental temperature < 50 C, elevation