We are bringing to the international marine markets the new 6F21.
This is the most compact marine engine in our history, with power density never seen before.

The most compact engine offering the most power.

Performance Technology

This level of performance was achieved by the evolution of multiple technologies. The 6F21 includes a strengthened engine structure to withstand high torque and a higher cylinder pressure of well over 200 bar. A two-stage turbocharger system is also fitted on the engine, along with two intercoolers, and a high-end common rail system, operating at 2200 bar.

Easy Maintenance

The 6F21 delivers this genuine marine design with marine components, such as individual cylinder heads that make maintenance easy even in the smallest of engine rooms. The fuel filters are mounted in the front to allow easy and quick maintenance, and there is no need to dismantle any part of the engine in order to reach a component.


The 6F21 is one of the most compact marine propulsion engines in the market offering the most power at the same time. To keep the overall weight down, light materials have been utilized. Cast iron and steel are only used when stress and temperature demand it. Flywheel housing, the oil sump, covers, brackets, supports, and even heat exchanger bodies are all constructed from light alloys.

6F21, the engine you need

Designed for marine

Like all Baudouin units, these are not ‘marinized’ truck engines, but specialized products designed for the challenges of working life at sea. Marine really is in the DNA of every Baudouin engine.

Optimised Compact System

The 6F21 is a smaller engine but delivers as much power as most of its bigger competitors. With 1470x1100x1075 mm of dimensions, the 6F21 can easily fit in the smallest of engine rooms.


The 6F21 delivers a reliable, consistent performance regardless of the conditions. With this marine propulsion engine, Baudouin decided not to comprise power, consumption or reliability by using the best components in the market.

Intermittent Duty Applications

599 kW & 2300 RPM
Power density: 48 kW / L

  • Passenger’s vessels
  • Crew boat
  • Firefighting boats
  • Pilot boats

Light-Duty Applications

662 kW & 2300 RPM
Power density: 53 kW / L

  • Commercial pleasure crafts
  • Fast rescue vessels
  • Fast military vessels
  • Survey vessels

High-Performance Duty Applications

735 kW & 2300 RPM
Power density: 59 kW / L

  • Yachting
  • Sport fishing

Se renseigner sur le 6F21

Nos experts sont là pour répondre à vos demandes