DEK series diesel generator are excellent to be electric portable generator set for emergency generator, electrical power generator etc. And our bearings are made of NSK, NTN. The structure of Silent Diesel Generator is designed with patent , it could avoid problems, such as too high lube oil temperature , the destroyed cooling fan , we guarantee that the lube oil will not be into the cylinder. And new type: DEK4500SL DEK6000SL with longer stroke to enlarge output. For details, please visit our website .please Price Condition FOB FUZHOU CHINA Origin made in china Packaging ctns or veneer plt Delivery lead time about 28 days Minimum order two sets