Mack Trucks, Inc., has announced that Dennis R. Slagle will succeed Paul L. Vikner as president and CEO of the company effective April 1, 2008.

Slagle has served since 2003 as president and CEO of Volvo Construction Equipment North America, headquartered in Asheville, North Carolina. He has more than 25 years of construction industry experience including serving as president of L.B. Smith, Inc., Volvo CE’s largest North American dealer  at the time. Slagle will be based at Mack’s headquarters in Allentown, Pennsylvania. Mack also announced the appointment of Matthew Walsh as vice president – export for its International Operations business. The appointment is effective immediately. In his new position, Walsh will be responsible for the company’s international export business, sales and distribution development. His duties will include overseeing export marketing, truck and parts sales, logistics, customer support and distributor development.