Medium-speed engines

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Wärtsilä 20

Robustness & reliability as the prime mover in smaller vessels or for generating set applications

Wärtsilä 20DF

The advantages of fuel flexibility in a small unit, also used for generating set applications
Wärtsilä 26

Compact & light unit with low operating costs, also used for generating set applications

Wärtsilä 32

Designed for reliability & easy maintenance, also used for generating set applications
Wärtsilä 34DF

Advanced dual-fuel technology & efficiency, also used for generating set applications

Wärtsilä 38

Lightest and most compact heavy duty engine, also used for generating set applications
Wärtsilä 46

The most popular engine for power generation onboard large cruise vessels

Wärtsilä 46F

Best-in-class fuel economy & outstanding power-to-weight as well as power-to-space ratios
Wärtsilä 50DF

Designed to give high output with fuel flexibility, low emissions, efficiency & reliability

Wärtsilä 64

The world’s most powerful medium-speed engine