LYNN, Massachusetts – January 8, 2026 – GE Aerospace has been awarded a US$ 1.4 billion contract by Naval Air Systems Command (NAVAIR) to supply T408 engines for Lots 9 through 13, continuing its support for the U.S. Marine Corps’ most advanced heavy-lift helicopter, the Sikorsky CH-53K King Stallion.
The multi-year contract follows six previous agreements related to the T408 program, including the US$ 684 million block-buy contract for Lots 6 through 8 announced in April 2023. Under the new agreement, GE Aerospace will deliver production engines, spare engines, and sustainment services. Final assembly will be carried out at the company’s facility in Lynn, Massachusetts.
The CH-53K is powered by three T408 engines and achieved Initial Operational Capability (IOC) with the United States Marine Corps in April 2022. Each engine delivers 7,500 shp (shaft horsepower), representing 57% more power compared to the T64 engine—also from GE Aerospace—used in previous versions. In addition, the T408 features significant improvements in fuel efficiency and maintainability.
According to the manufacturer, these characteristics allow the CH-53K to provide up to three times the range and payload capacity of the CH-53E Super Stallion, enhancing its ability to transport heavy equipment, troops, and supplies, as well as conduct aerial refueling and assault support missions from ships or land bases.
In a direct comparison with the T64, the T408 records an 18% improvement in specific fuel consumption, which is expected to result in significant savings over the program’s life cycle.
The engine also features 63% fewer parts, along with advanced design solutions such as a more robust compressor with erosion-resistant coating and a split-case housing. These factors contribute to greater reliability, simplified maintenance, and higher aircraft operational availability.
In addition to the Lynn facility, GE Aerospace sites located in Hooksett (New Hampshire), Rutland (Vermont), Madisonville (Kentucky), Dayton (Ohio), and Jacksonville (Florida) supply components for the program. German company MTU Aero Engines, a partner in the development of the T408, is responsible for producing the power turbine.
Source and images: GE Aerospace. This content was created with the help of AI and reviewed by the editorial team.
