LYNN, Mass. – January 8, 2026 – GE Aerospace has been awarded a $1.4 billion contract by Naval Air Systems Command (NAVAIR) for Lots 9-13 of T408 engines, continuing its support for the U.S. Marine Corps’ most advanced heavy-lift helicopter, the Sikorsky CH-53K® King Stallion. The CH-53K is capable of lifting 36,000 pounds; refueling mid-air; providing ship-to-shore mobility and maneuverability along with executing multiple assault support missions.
This multi-year award follows six previous contracts for T408 engines, including the $684 million Lot 6-8 block-buy contract announced in April 2023. Under the latest agreement, GE Aerospace will deliver new production and spare engines as well as sustainment services, with final assembly being performed at the company’s Lynn, Mass., facility.
“This latest contract is a testament to the T408’s ability to deliver the power, durability and efficiency the Marine Corps depends on,” said Scott Snyder, Heavy Lift Engines Program Director. “We are honored to support the CH-53K and the critical mission it performs for Marines, joint forces and allies around the globe.”
The CH-53K – powered by three T408 engines – achieved Initial Operating Capability (IOC) with the Marine Corps in April 2022. Each T408 provides 7,500 shaft horsepower, which delivers 57 percent more power than its predecessor, the GE Aerospace T64, while also offering significantly improved fuel efficiency and maintainability. This allows, the CH-53K King Stallion to offer three times the range and payload capacity of the CH-53E Super Stallion enabling the transport of heavy equipment, troops, and supplies.
Sailors refuel a CH-53K King Stallion assigned to U.S. Marine Heavy Helicopter Squadron (HMH) 461 during flight operations, Dec. 4, 2025. Source: U.S. Navy
Compared to the T64, the T408 offers 18 percent better specific fuel consumption that will deliver significant savings over the life cycle of the program. The T408 also has 63 percent fewer parts and advanced designs, such as a more rugged compressor with erosion coating and split casing. These features improve both reliability and maintainability which leads to greater aircraft availability.
In addition to Lynn, Mass., GE Aerospace facilities in Hooksett, N.H.; Rutland, Vt.; Madisonville, Ky.; Dayton, Ohio; and Jacksonville, Fla. supply components for the program. Germany-based MTU Aero Engines, a T408 program partner, produces the power turbine.
About GE Aerospace
GE Aerospace is a global aerospace propulsion, services, and systems leader with an installed base of approximately 49,000 commercial and 29,000 military aircraft engines. With a global team of approximately 53,000 employees building on more than a century of innovation and learning, GE Aerospace is committed to inventing the future of flight, lifting people up, and bringing them home safely. Learn more about how GE Aerospace and its partners are defining flight for today, tomorrow and the future at www.geaerospace.com.
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