SD178/E is air-cooled diesel engine, 4 stroke engine, direct injection engine, 4 hp engine, Electric start, EPA and CE approved. SDS ... engine 4hp, 7hp, 9hp and 10hp.2, Gasoline engine 5.5hp, 6.6hp, 8hp, 9hp, 13hp, and 16hp.To make sure ... person to monitor the production process and do performance testing. 4.0/5.5kw/ps 3600rpm Diesel Engine