medium-speed ship engine / diesel / turbocharged / Tier 2
L20 series Wärtsilä Corporation



  • Power source:


  • Technology:


  • Other characteristics:

    Tier 2

  • Power:

    800 kW, 1,200 kW, 1,600 kW, 1,800 kW (1,087.7 hp)


The Wärtsilä 20 has proven its robustness and reliability with over 6000 engines delivered since its introduction to the market in the early 1990s. The engine can switch from MDO to HFO and vice versa without power interruption at any engine operation load.

The Wärtsilä 20 engine is fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention.