SDS provide both diesel and gasoline engine from 4hp to 16hp. Diesel engine 4hp, 7hp, 9hp and 10hp.1, Gasoline engine 5.5hp, 6.6hp, 8hp ... , 9hp, 13hp, and 16hp.2, To make sure that every engine has a reliable ... person to monitor the production process and do performance testing Air-cooled Gasoline Engine