RTX's Pratt & Whitney awarded $1.6 billion F135 sustainment contract

Rhea-AI Summary

Pratt & Whitney (NYSE: RTX) was awarded a $1.6 billion undefinitized contract action on Dec. 2, 2025 to sustain the F135 engines that power all three F-35 variants. The award funds depot maintenance, spare parts replenishment, material management, propulsion integration, engineering support and software sustainment for U.S. and international customers.

The sustainment network covers multiple global depots, 39 bases and 12 ships, and builds on delivery of more than 1,300 F135 production engines. The work is positioned to support F-35 readiness and enable the F135 Engine Core Upgrade using the existing sustainment infrastructure.

Positive

• $1.6 billion undefinitized F135 sustainment contract
• Sustainment across 39 bases and 12 ships worldwide
• Covers depot maintenance, spare parts, engineering and software
• Builds on > 1,300 F135 production engines already delivered

Negative

• None.

Insights

Defense sustainment analyst

Large undefinitized sustainment award strengthens Pratt & Whitney's F135 support and near-term revenue visibility.

The contract commits $1.6 billion for depot maintenance, parts replenishment, engineering, software sustainment and logistics for the F135 engine ecosystem. This work funds recurring sustainment operations across global depots and supports readiness at 39 bases and 12 ships, preserving an installed-base support stream tied to existing F-35 fleets.

Execution depends on meeting delivery schedules, cost control under an undefinitized action, and coordination with U.S. and international customers. Supply chain or depot capacity strains would raise costs or delay missions. The award reinforces installed‑base economics but carries programmatic risk until the contract is definitized.

Watch contract definitization terms and near-term award milestones over the next 12–18 months, spare parts replenishment rates, and any disclosed performance metrics affecting readiness rates. These items will clarify cash flow timing and operational impact.

Award will support global engine sustainment and F-35 readiness

EAST HARTFORD, Conn., Dec. 2, 2025 /PRNewswire/ -- Pratt & Whitney, an RTX (NYSE: RTX) business, has been awarded a $1.6 billion undefinitized contract action for sustainment of F135 engines, which power all three variants of the F-35 Lightning II, the world's most advanced fighter aircraft.

The contract funds key sustainment activities, including depot level maintenance and repair, replenishment of spare parts, material management, propulsion system integration, engineering support, and software sustainment for the U.S. and international customers.

"Investing in F135 sustainment keeps allied forces ready to meet current and future threats," said Kinda Eastwood, vice president of F135 Sustainment at Pratt & Whitney. "F-35 operators worldwide depend on the F135 for the power and performance their missions demand, and this award helps us maintain readiness rates that enable the warfighter to accomplish their critical missions."

To ensure F-35 mission readiness, the F135 sustainment network supports an expansive infrastructure, including multiple global depot facilities, 39 bases and 12 ships worldwide. By leveraging its globally distributed maintenance, logistics and technical expertise, Pratt & Whitney is advancing the F135 enterprise to deliver greater agility, resilience and support wherever the F-35 operates.

Pratt & Whitney has delivered more than 1,300 F135 production engines to a global enterprise that includes 20 allied nations. Looking ahead, the F135 Engine Core Upgrade will leverage this sustainment network, providing F-35 partner nations with a proven, cost-effective infrastructure that enhances readiness and ensures seamless support across the fleet for decades to come.

About Pratt & Whitney 
Pratt & Whitney, an RTX business, is a world leader in the design, manufacture and service of aircraft engines and auxiliary power units for military, commercial and civil aviation customers. Since 1925, our engineers have pioneered the development of revolutionary aircraft propulsion technologies, and today we support more than 90,000 in-service engines through our global network of maintenance, repair and overhaul facilities.

About RTX
RTX is the world's largest aerospace and defense company. With more than 185,000 global employees, we push the limits of technology and science to redefine how we connect and protect our world. Through industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon – we are advancing aviation, engineering integrated defense systems for operational success, and developing next-generation technology solutions and manufacturing to help global customers address their most critical challenges. The company, with 2024 sales of more than $80 billion, is headquartered in Arlington, Virginia.

For questions or to schedule an interview, please contact corporatepr@rtx.com

 

View original content:https://www.prnewswire.com/news-releases/rtxs-pratt--whitney-awarded-1-6-billion-f135-sustainment-contract-302630193.html

SOURCE RTX

FAQ

What did RTX announce on Dec. 2, 2025 about the F135 sustainment contract?

RTX announced a $1.6 billion undefinitized contract action for F135 engine sustainment covering maintenance, parts, engineering and software.

How will the $1.6 billion RTX F135 contract affect F-35 readiness?

The contract funds depot maintenance and logistics support intended to maintain readiness across the fleet, including work at 39 bases and 12 ships.

Does the RTX contract cover international F-35 customers?

Yes; the award funds sustainment activities for both U.S. and international customers and partner nations.

How many F135 engines has Pratt & Whitney delivered to date?

Pratt & Whitney has delivered more than 1,300 F135 production engines to a global enterprise of 20 allied nations.

Will the F135 Engine Core Upgrade use the RTX sustainment network?

Yes; the announcement says the Engine Core Upgrade will leverage the existing sustainment network to enhance readiness.

What sustainment activities are included in the RTX F135 contract?

Contracted activities include depot-level maintenance, spare parts replenishment, material management, propulsion integration, engineering support and software sustainment.