Do you have trouble with your single cylinder air cooled engine not lasting on applications doing long hours, day after day? That because they aren't designed to do that day in day out work. That's where the small multi-cylinder engines come into their own. They are designed to do the long hours day after day. The D905 fitting right into that application section with low horsepower from 8.9 at 1500 rpm to 17hp at 3000 rpm for continuous operation. They can also be fitted with a range of options not available to suit the single cylinder air cooled range of engines. Contact us to help choose the right engine for you application.