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The Wärtsilä 31 is available in 8 to 16 cylinder configurations and has a power output ranging from 4.7 to 9.8 MW, at 720 and 750 rpm. The launch of the Wärtsilä 31 introduces a 4-stroke engine having the best fuel economy of any engine in its class. At the same time, it maintains outstanding performance across the complete operating range. Its modular design enables a significant reduction in maintenance time and costs, thereby improving power availability and reducing the need for spare parts. The Wärtsilä 31 is the first of a new generation of medium speed engines, designed to set a new benchmark in efficiency and overall emissions performance. Wärtsilä 31 is recognised by Guinness World Records as the world's most efficient 4-stroke diesel engine

  • Highest cylinder power in its segment, 610 kW/cylinder.

  • Available in Diesel, Dual Fuel (DF) and Pure Gas (SG) versions.

  • Lowest fuel consumption over a wide operating range.

  • Reliability guaranteed through extensive validation and Wärtsilä’s vast manufacturing experience.

  • Meets the coming IMO Tier 3 regulations when operating on gas, and with an SCR when using diesel fuel. The SCR has a minimal effect on fuel consumption.

8V31 Specifications:

  • Dimensions [L × W × H] (mm)

    6114* 3115*4701
  • Speed (RPM)

  • Power (kW)

  • Bore (mm)

  • Stroke (mm)

  • Cylinder Configuration

  • Series

  • Power (MW)

  • Fuel

  • Weight (kg)


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