SD186A/E is air-cooled diesel engine, 4 stroke engine, direct injection engine, 4 hp engine, ... Electric start, EPA and CE approved SDS provide both diesel engine and gasoline engine from 4hp to 16hp.1 ... , Diesel engine 4hp, 7hp, 9hp and 10hp.2, Gasoline engine 5. ... person to monitor the production process and do performance testing Diesel Engines