... , EPA CERTIFIED diesel enginesingle-cylinder, Vertical, four-stroke, direct-injection, air cooled, ModelDY170F(E)DY178F(E)DY186F(E)DY186FA(E)TypeSingle-cylinder ... , Vertical, 4-stroke, air-cooled diesel engineCombustion SystemDirect InjectionBore X Stroke (mm)70X5578X6286X7086 X72Displacement (cc ... (cam shaft PTO rpm is 1/2) CE EPA 10hp air cooled diesel engine