Although they still exist, 2-stroke diesel engines aren't all that common, and 4-stroke engines are what you'll commonly see ...

Yanmar makes these water-cooled, single-cylinder diesel engines that you can use for virtually anything, from agricultural to ...

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Dubbed the Powerful, the experimental engine is a 730cc, two-stroke, two-cylinder supercharged and turbocharged diesel that makes between 47 and 67 horsepower and 83 to 107 pound-feet of torque.