LISLE, Ill., March 7, 2013 /PRNewswire/ -- Navistar International Corporation (NYSE: NAV) today announced that its Board of Directors has appointed Troy A. Clarke as president and chief executive officer of Navistar, effective April 15, 2013. Clarke, currently the company's president and chief operating officer, will also join the board. At the same time, Lewis B. Campbell, who has served as executive chairman and interim CEO since August 2012, will step down from those positions and from the board. James H. Keyes, who has served as a board member since 2002, will become non-executive chairman, also effective April 15. (Logo: http://photos.prnewswire.com/prnh/20120127/MM32830LOGO-a) "Over the past six months, Navistar has made significant progress on many important fronts, including on our three near-term priorities: improving quality, meeting each of our clean engine launch milestones, and delivering on our 2013 operating plan," Campbell said. "When I assumed the interim CEO role last August, I was prepared to stay as long as necessary to oversee the company through a transition period, and today I am pleased to announce our turnaround is firmly underway and our return to profitability is clearly in sight. I am also delighted that the board and I have decided that Troy is the right executive to lead the company forward at this time, and I am confident Navistar will continue to build on its momentum – improving performance and quality for customers and creating shareholder value." "On behalf of the Board of Directors, I want to thank Lewis for his valuable contributions to Navistar. He stepped in during a challenging period of transition for the company, and his leadership was critical in helping align our board and management around a clear path forward," Keyes said. "The board is also extremely pleased to name Troy as chief executive officer. He is a proven leader and has been a valuable asset to the executive team since joining the company in early 2010. During his recent tenure as president and chief operating officer, Troy has been instrumental in implementing Navistar's Drive to Deliver plan focused on clear accountability and functional excellence; driving the company's transition to its clean engine strategy; and taking aggressive actions to improve Navistar's cost structure.