... .Thread Type, 3.Key Type. Air-Cooled Diesel Engine Motor Machinery Engine(GE178F)1.Air cooled diesel engine 170F2.Output: 4HP, 7HP, 10HP3.The crankshaft ... -stroke. Air-cooled diesel engine6.EPA, CARB and EC-II standard7.Multi-choice PTO shafts, high pulling torque Air-Cooled Diesel Engine Motor Machinery Engine(GE178F)