News Releases   April 23, 2019

John Deere Power Systems announces engineering leadership changes

Waterloo, Iowa (April 23, 2019) — John Deere Power Systems announced engine engineering leadership changes in response to the planned retirement of a vice president.

Michael Weinert has elected to retire after 42 years of distinguished service at John Deere, effective May 3. Weinert is vice president engineering and manufacturing, John Deere Power Systems.

"Mike has over four decades of accomplishments with John Deere, including management roles at four engine factories. Mike was named director engine engineering in 2003, and vice president engineering and manufacturing in 2010. He has been involved with the John Deere emissions journey since the development of Tier 1/Stage I emissions-certified engines, providing key leadership in the John Deere emissions journey to Final Tier 4/Stage V," said Pierre Guyot, senior vice president for John Deere Power Systems.

Subramani appointed global director, engine engineering

With the pending retirement of Mike Weinert, Mani Subramani has been appointed global director engine engineering, John Deere Power Systems, effective May 1st. In this new position, Subramani will provide overall strategic direction and leadership for the development of John Deere diesel engines.

"Mani's technical and leadership experiences make him well suited to lead the engine engineering organization and the development of new engine programs," said Guyot.

Subramani began his career with John Deere in 1999. During his 20 years of service, he has held roles of increasing responsibilities within engine engineering. In these positions, he led the transition of engines from US/EU Tier 2/Stage II through Tier 4/Stage V and global (Brazil, China, India) emissions compliance. For the last several years, he served as engineering manager for new engine programs and continuous improvement of engines in production. Prior to John Deere, Subramani worked for another engine manufacturer.

About Deere & Company

Deere & Company (NYSE: DE) is a world leader in providing advanced products and services and is committed to the success of customers whose work is linked to the land - those who cultivate, harvest, transform, enrich and build upon the land to meet the world's dramatically increasing need for food, fuel, shelter and infrastructure. Since 1837, John Deere has delivered innovative products of superior quality built on a tradition of integrity. For more information, visit John Deere at its worldwide website at

John Deere Power Systems manufactures and markets industrial, marine, and generator drive diesel engines, as well as drivetrain components for use in a variety of off-highway applications. For more information, visit John Deere Power Systems at

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