1B20V – Single Cylinder Engine

Hatz 1B20V single cylinder engine – 3.5 kW max max torque of 10.5 Nm


Air-cooled single-cylinder four-stroke Diesel engine. Vertical cylinder. Crankcase in light alloy, diecast. Cylinder of grey cast iron. Cylinder head in light alloy. Crankshaft and big end in plain bearings. Direct injection, multi-hole nozzle.Value control by rocker, push-rods, tThe Hatz B series scores high marks in mobile and stationary operation with compact installation dimensions and in all applications with a power requirement up to 8 kW due to its low weight. Also in regard to robustness and lifetime, the series sets standards in the market. Whether on vibration plates or in the inhospitable environment of the Antarctic, the B-series has been tried and tested a hundred thousand times in harsh surroundings..


Power 1.4 - 3.5 kW
Max. torque 10.5 Nm


  •  Air cooled single-cylinder 4-stroke diesel engine
  •  Crankshaft arranged vertically
  •  Crankcase made from die-cast light alloy
  •  Light alloy cylinder head
  •  Forged crankshaft
  •  Pressurized lubrication with fine filter in the main flow
  •  Valve timing via rocker arm, push rods, finger follower and camshaft

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