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A tough engine - ideal for tugboats. The SU engine from Mitsubishi.
The SU inherits all the very best of Mitsubishi's proprietary technologies which have been developed over half a century. Mitsubishi's reliable mechanism generates a powerful propulsion, yet compact style makes the engine easy to mount. Robust, rigid structure and low fuel consumption ratio - key requirements for the main engine of tugboats. The SU engine is built to deliver reliable service for many years and to satisfy the exacting demands of professional boat operators.