Pratt & Whitney Awarded $3.8B Contract Modification

East Hartford-based Pratt & Whitney this week announced it was awarded a a $3.8 billion contract modification for F135 engine production.

The F135 engine powers all three variants of Lockheed Martin’s F-35 Lightning II fighter jet, which has recorded more than one million flight hours with the U.S. military and allies.

The contract modification defines F135 propulsion system production, and provides for the production of F135 propulsion systems.

The total value of contract awarded to Pratt & Whitney is $6.6 billion.

“The F135 is the most advanced military engine in the world, delivering unmatched thrust, reliability and mission readiness for the U.S. and its allies,” said Jill Albertelli, president of Military Engines for Pratt & Whitney.

“Pratt & Whitney is investing heavily across our global production base and supply chain to increase production and accelerate engine delivery and sustainment to meet growing global demand for the F-35 program.”

Contract Provisions

This contract includes full-rate production engines, initial spares, modules, engineering resources, program oversight, and dedicated production support services.

It also ensures capacity, tooling, and uninterrupted manufacturing and supply chain operations for both U.S. military services and international customers.

Pratt & Whitney is making significant investments to accelerate the speed at which engines are built and delivered, committing more than $1 billion over the past five years to expand and modernize production capacity.

Pratt has increased current F135 production rates by 20% over previous contract rates.

The F135 program supports over 66,000 jobs across 47 states and territories and generated more than $9 billion in economic impact domestically in 2025.

Pratt & Whitney has delivered more than 1,400 production F135 engines for the F-35 program, which includes 20 allied nations worldwide.