WinGD debuts X-DF-HP LNG dual-fuel engine

Swiss marine power company WinGD introduced its first high-pressure LNG dual-fuel engine, the X-DF-HP. The engine is designed for the demanding operation of ultra-large container vessels (ULCVs).

WinGD unveiled the engine at Marintec China 2025. Shipowners face growing challenges as they navigate the energy transition. With the IMO Net Zero Framework paused, regional regulations are becoming fragmented. Interest in LNG-fuelled ships continues to grow.

The X-DF-HP comes in X82 and X92 bore sizes. WinGD tailored it for the scale, speed, and load requirements of ULCVs. The first deliveries are planned for 2028. Based on comparisons with existing diesel engines and dual-fuel designs, WinGD expects improved efficiency.

“Large container vessels need immense power, high efficiency, and long-term fuel flexibility,” said Benny Hilström, Vice President, Market Development at WinGD. “The X-DF-HP gives operators a purpose-built solution for the most power-hungry ships. It ensures trouble-free propulsion.”

The engine uses the same auxiliary system requirements as other engine concepts. This allows straightforward installation for shipyards. The X-DF-HP achieves Tier III compliance in both gas and diesel modes using only a standard SCR. Operators gain a powerful, space-efficient, future-ready option.

Sebastian Hensel, VP R&D at WinGD, said, “The X-DF-HP builds on our high-pressure Diesel X92-B engine platform. Our tests show it improves fuel efficiency and GHG performance compared to other high-pressure dual-fuel engines.”

The X-DF-HP builds on over a century of WinGD’s high-pressure Diesel cycle expertise. It joins WinGD’s high-pressure, multi-fuel portfolio, including the methanol/ethanol-capable X-DF-M/E and ammonia-fuelled X-DF-A engines. Operators now have a fully fuel-flexible platform. Existing X92-B engines can be retrofitted for LNG, methanol, ethanol, or ammonia.

LNG remains a cost-competitive, low-risk option for fleet decarbonisation. It ensures FuelEU Maritime compliance into the next decade. WinGD’s X-DF and X-DF-HP engines are compatible with renewable methane blends. Operators can reduce emissions without major retrofits or high costs.

Hilström added, “For ULCVs choosing LNG, the X-DF-HP is the most cost-effective choice. For other vessels, the low-pressure X-DF platform delivers excellent lifecycle economics. Together, these options give operators confidence in LNG and WinGD for their fleet’s energy transition.”

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