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Based on the successful M 43 C MaK medium speed engine, the M 46 DF was designed by Caterpillar Motoren, Kiel to meet and exceed the reliability and lifetime expectations of the M 43 C while maintaining its class leading position regarding operational efficiency. With its clean design, the M 46 DF does allow fast and easy access to the system and components supporting the operation, service and maintenance simplicity MaK products are known for. Designed to operate on gaseous- as well as liquid (MDO HFO) fuels, the M 46 DF will meet IMO III emission limits while operating in gas mode and injecting a small amount of ignition fuel to control combustion. Attention was paid to the customers´ demand for a safe and reliable operation at varying engine loads and gas qualities.

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Power Rating
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Power Range 10800 - 15440 kW 10800 - 15440 kW

Operational Simplicity

Service & Maintenance Simplicity

Operation on natural gas with min. methane number of 55 possible at reduced load.

Supports HFO operation according to CIMAC H55/K55 in diesel mode.

VM 46 DF Standard Equipment

Air Inlet System
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  • Air intake silencer / filter

VM 46 DF Optional Equipment

Air Inlet System
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  • Air inlet shut-off valve
  • Air intake transition piece
  • Expansion joint
  • Silencer / filter