The Navy has awarded Pratt & Whitney [UTX] a $319.8 million contract modification for 32 new engines for the Pentagon’s F-35 Joint Strike Fighter.

The modification exercises an option for Pratt & Whitney to build and deliver 20 F135-PW-100 engines for the Navy, six engines for the Air Force and six for Japan’s F-35 aircraft. Naval Air Systems Command is the F-35 contracting activity. Pratt & Whitney has provided all F-35 engines to date. Prime contractor Lockheed Martin [LMT] announced earlier this month that the 500th Joint Strike Fighter had been delivered.

The majority of the work will be performed at the company’s facilities in East Hartford, Connecticut, as well as in Indianapolis and in Bristol, United Kingdom, and work is expected to be complete by December 2022. Fiscal 2020 aircraft procurement (Navy) funds in the amount of $193.3 million; fiscal 2019 aircraft procurement (Air Force) funds in the amount of $73.8 million; and Foreign Military Sales funds in the amount of $52.6 million will be obligated at time of award, none of which will expire at the end of the current fiscal year.