20kVA Cummins diesel generator powered by Cummins diesel engine model 4B3.9-G1, which produced by Dongfeng Cummins Engine Co., Ltd. under USA Cummins controlled factory in China. The engine with naturally aspirated better for longer life times. It has the advantage of high technology, durable, easy operation and maintenance. And the Cummins diesel engine is one of the most popular diesel engine for generator set, the users can easy get the spare parts in each country in the world.