1D50 – Single Cylinder Engine

Hatz 1D50 single cylinder engine – 7.9 kW max max torque of 27.8 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, tappets and camshaft. Pressure lubrication, with gear-type oil pump. On request, full-flow oil filter. Oil sump of sheet metal. Flywheel fan, charging alternator integrated into the flywheel. No V-belt necessary.


Power 3.3 - 7.9 kW
Max. torque 27.8 Nm


  • Demised: emission of noise reduced to the absolute minimum by means of design features and precision manufacture.
  • Low fuel consumption.
  • Favourable exhaust gas valuesºEPA / CARB certified.
  • Robust: long life engine.
  • Extensive interchange ability of parts within the engine family D .
  • Reliable: no V-belts.
  • Easy to service: automatic injection pump bleeding.
  • Friendly to the environment: crankcase breather leads into the intake port.
  • Reliable effortless starting thanks to automatic extra fuel device.
  • Hand start or electric start available.

Resources & downloads