Allison Transmission Holdings Inc., a global designer and manufacturer of commercial and military fully automatic transmissions and hybrid propulsion systems, has announced that James Wanaselja, vice president of North American marketing, sales and service, has elected to retire effective April 1.

"Under Jim's leadership over the past 19 years, he and his team have developed effective sales and marketing strategies, which have been implemented company wide. The entire Allison team and I wish Jim, his wife, Lynn, and their family a long and happy retirement. His presence on our team will be missed," said Lawrence Dewey, chairman, president and CEO of Allison Transmission.

Michael Headly has been promoted to senior vice president of global marketing, sales and service and will add Wanaselja's duties to his previous responsibilities as Allison Transmission's vice president of outside North American marketing, sales and service. During his 25 years of service with Allison, Headly has led key areas of the business, including: defense programs, North American sales, program management, and Allison Transmission Europe.

"Mike's contributions to Allison Transmission have been instrumental to our successes around the world," Dewey said. "He clearly understands the commercial and defense medium- and heavy-duty transmission end markets, and I am confident that through his leadership, he will continue to drive our growth initiatives in his expanded role."