Power range: 55 – 125 kW

Displacement: 2.1 lt

Dry weight: 243 – 276 kg

The MO 4-cylinder engine series of STEYR MOTORS comprises long established, globally trusted engines based on the unique Monoblock design with patented 2 stage unit injection technology. Besides an outstanding power to weight ratio, the series’ supreme operational safety, robustness and long service life are highly appreciated on the market.


  • Perfectly suited for commercial and leisure applications
  • Dual circuit cooling system with corrosion resistant materials
  • Excellent performance and highest durability
  • Compact and lightweight design
  • SOLAS approved, EPA Tier II and RCD compliant
  • Different propulsion systems can be installed
  • Standard 12 V / 120 A alternator, optional 24 V / 100 A available
  • Preparation for keel cooling and many other options & kits available