Single cylinder four stroke diesel engine, air cooled with direct injection system, save manual start with starting handle or electric starter motor, excess fuel device, automatic decompression, self-venting fuel system, mechanical governor, lubricating oil gear pump, oil filter, dry type air cleaner or oil bath air cleaner, exhaust silencer, 3.9 l fuel tank, fuel filter, crankcase of high tensile light alloy, crankshaft / con rod bearing: plain bearings on all except flywheel end (roller bearing), cast integral engine feet, power take of flywheel end, environmentally friendly by using internal crankcase breathing and valve stem seals. The engine is also available with clockwise rotation under the denomination 15 B / 18 B and in water cooled version as 15 W / 18 W.