Pratt & Whitney president Bob Leduc will retire from the East Hartford-based aerospace manufacturer in early 2020.
Chris Calio, head of the company's commercial engine business, will succeed Leduc.
Leduc's career at Pratt & Whitney parent United Technologies Corporation spans more than 40 years.
He was appointed to lead Pratt & Whitney in 2016 after previously managing Sikorsky Aircraft, which UTC sold to Lockheed Martin in 2015.
Leduc also held leadership positions with UTC subsidiaries Hamilton Sundstrand and UTC Aerospace Systems.
UTC chair and CEO Greg Hayes praised Leduc for leaving "a lasting imprint on Pratt & Whitney."
"Bob has played a significant role in shaping Pratt & Whitney as we know it today," Hayes said in a June 25 statement.
"He transformed the engine company by driving excellence and empowerment throughout the organization."
Calio has directed Pratt's commercial engines business since 2017, overseeing development, program management, sales, customer support, and aftermarket services.
He was previously Hayes' chief of staff, joining UTC in 2005 and serving in a number of positions.
"Chris and Bob will work closely together over the next few months to ensure a smooth transition for both our customers and employees," Hayes said.
"Chris has a proven record of performance and his commitment to customers, innovation, and growth will position Pratt & Whitney to win for many years to come."