Troy A. Clarke, president and chief operating officer, Navistar International Corporation Troy A. Clarke, 57, has been promoted to president and chief operating officer at Navistar International Corporation. He previously served as president of truck and engine operations at Navistar, and as president of the company's Asia Pacific operations. Clarke joined Navistar in January 2010 as senior vice president of strategic initiatives. Previously, Clarke spent more than 35 years with General Motors Co. where he served in a variety of roles, including president of General Motors North America, president and managing director of GM's Mexico operation, vice president of manufacturing and labor relations, and president of GM Asia Pacific. Clarke has a Bachelor's degree from General Motors Institute and an MBA from the University of Michigan.
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