air cooled diesel engine 4HP, 6HP &10HP direct-injection fuel combustion system, 4stroke. Air cooled diesel engineEngine type: single-cylinder, Vertical, four-stroke, direct ... -injection, air cooled,diesel engineModelDY170F(E)DY178F(E)DY186F(E)DY186FA(E)TypeSingle-cylinder, Vertical, 4-stroke, air-cooled ...