Three long-time vice presidents have chosen to retire from Caterpillar (NYSE:CAT), four new vice presidents have been appointed, and responsibilities for other vice presidents have been changed, the company announced today.

Steve Fisher, VP of the Large Power Systems & Growth Markets Division, a 35-year Caterpillar veteran; Steve Larson, VP of the Parts Distribution & Diversified Products Division, a 34 -year veteran; and Bill Rohner, VP of the Electric Power division, a 41-year veteran, will all be retiring effective February 1, 2014.

Tana Utley, current VP of its Industrial Power Systems & Growth Markets Division, will replace Steve Fisher. This move, the company said, is to "better align engine products with global customer requirements." The company appointed Ramin Younessi to take over the division Utley will be leaving.

The division led by Steve Larson will be folded into the Customer Services Support Division, led by VP Steve Gosselin.

Bill Finerty, VP of Americas Distribution Services, will assume responsibility for a newly realigned Diversified Products Division, while Pablo Koziner will take over Finerty's old division.

Steve Niehaus will take over Rohner's position.

Mike DeWalt, currently the corporate controller, has been appointed VP of the newly created Strategic Services division, which includes Mergers & Acquisitions.

The vice presidents will assume their new posts effective October 1, 2013.