B33:45L

  • Liquid Fuel
  • Medium Speed Propulsion Engine and Generating Set
  • 3,600 - 5,400 kW
  • Marine diesel engine and generating set designed for cost-effective operation.
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Cost-effective operation
The Bergen B-series is based on a modular design, which gives a flexible platform and at the same time carries forward the Bergen traditional values as a robust and reliable engine.

The selection of technology was done after consulting a broad range of operators, designers and shipbuilders, to establish the qualities they prize in an engine. This engine series was first introduced to the market in 2014 as a diesel engine, and the gas version followed in 2018. It is available in several in-line or Vee cylinder variants for both diesel and gas, and is equally suitable for mechanical transmission or as a marine generating set.

Main benefits for ship owners:

  • Reliable power with proven low life cycle costs
  • IMO Tier II compliant without use of SCR & IMO Tier III compliant with use of SCR
  • Dynamic service intervals with 25.000 hours between main services when operating within a defined load window
  • Fast load response
  • Low vibration/structural noise level
  • Full equipment health monitoring and 24/7 support by global service network
  • Compact and modular design with a low weight construction
  • Possible conversion from diesel to gas and vice versa
  • New flexible mounts without welded brackets
  • Aligned piping at pump end for ease of connection
  • Flexible exhaust routing – 15 degree rotation of connections to turbocharger
  • Full power can be taken from either end of crankshaft up to and including V12 version

Main benefits for shipyards:


  • – Easy installation
  • – New resilient mounting (no need of welding brackets)
  • – Aligned piping at pump-end for easy connection
  • – Flexible exhaust routing (and air ducting if applicable): 15 degree rotation of connection points to turbocharger available

AT SEA Bergen Engines

  • B36:45V

    Natural Gas | Medium Speed Propulsion Engine and Generating Set | 7,200 - 9,600 kW | Marine natural gas engine designed for cost-effective operation.

  • B36:45L

    Natural Gas | Medium Speed Propulsion Engine and Generating Set | 3,600 - 5,400 kW | Marine natural gas engine designed for cost-effective operation.

  • B33:45V

    Liquid Fuel | Medium Speed Propulsion Engine and Generating Set | 6,380 - 10,650 kW | Marine diesel engine and generating sets designed for cost-effective operation.

  • B33:45L

    Liquid Fuel | Medium Speed Propulsion Engine and Generating Set | 3,600 - 5,400 kW | Marine diesel engine and generating set designed for cost-effective operation.

  • C26:33L

    Natural Gas | Medium Speed Propulsion Engine and Generating Set | 1,460 - 2,430 kW | Learn burn natural gas engine designed for cost-effective operation.

  • C25:33L

    Liquid Fuel | Medium Speed Propulsion Engine and Generating Set | 1,920 - 3,000 kW | Liquid fuelled medium speed engines.

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