Wärtsilä to Supply Ammonia-Capable Engines and Propulsion for Two New Gas Carriers

Wärtsilä will deliver ammonia-capable auxiliary engines, exhaust treatment, and propulsion systems for two 51,350 m3 LPG/ammonia carriers, with equipment deliveries starting in June 2027.

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Wärtsilä has secured an order to supply ammonia-capable engines and propulsion systems for two new gas carriers. The vessels, each with a capacity of 51,350 m3, will be built at the Nantong CIMC Sinopacific Offshore & Engineering (SOE) shipyard in Shanghai.

The owner of the ships is Navigator Amon Shipping AS, a joint venture between Navigator Gas and Amon Maritime. Wärtsilä's scope includes the Wärtsilä 25 Ammonia auxiliary engine, a selective catalytic reduction (SCR) system, and a gas valve unit (GVU). The company will also provide the propulsion system, which includes a controllable pitch propeller.

The order for the engines, SCR, and GVU was booked in the second quarter of 2026, while the order for the controllable pitch propeller system was booked in the third quarter of 2026. According to Wärtsilä, equipment deliveries to the shipyard are scheduled to begin in June 2027.