Model S173F S178F S178FA S178FS Type Air-cooled, 4-stroke,single cylinder,vertical Air-cooled, 4-stroke,single cylinder,vertical Air-cooled, 4-stroke,single cylinder,vertical Air-cooled, 4-stroke,single cylinder,vertical Bore*Stroke(mm) 73*58 78*62 78*64 78*62 Displacement(mm) 243 296 305 296 Combustion system Direct injection Direct injection Direct injection Direct injection Rated output kw(hp)/rpm 2.5(4.8)/3000 3.8(5.1)/3000 3.8(5.1)/3000 3.8(5.1)/3000 Rated output kw(hp)/rpm 3.8(5.2)/3600 4.4(5.9)3600 4.4(5.9)3600 4.4(5.9)3600 Max output kw(hp)/rpm … Continue reading diesel engine