1) ATON 4.5~5kw air-cooled silent diesel welding generator 2) 1 year warranty 3) CE,SONCAP,GS ... 4) 50/60hz 5) Good quality ATON 4.5~5kw air-cooled silent diesel ... cylinder, 4-stroke, air-cooled , direct injection, diesel engine.Bore*stroke mm86*7286*72Displacement418418Lube L1.651.65Fuel tank ... Products ATON 4.5~5kw air-cooled silent diesel welding generator