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.
Compactness
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.