industrial diesel engines

The B-Series – Flexible solution for all areas

The Hatz B-series scores high marks in mobile and stationary operations with compact installation dimensions and for all applications with a power requirement up to 8 kilowatts due to its low weight. With its robustness and longevity, the series sets standards in the market. Regardless of whether on vibration plates or in the inhospitable environment of the Antarctic, the Hatz B-series has been tried and tested a hundred thousand times in harsh surroundings.


  • Power from 3.9 to 7.9 kW
  • max. torque 25.6 Nm
  • Compact and lightweight construction
  • Direct injection method
  • Certified to EU Stage V (variable speed)


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


  • Can be customized thanks to numerous options
  • Lower fuel consumption
  • Long service life