sentences:  Introduced in 2002, the 8000 Series replaced a product line of the same name derived from the long-running International Harvester S-Series.In 2007, Navistar rebranded the 8000 Series as the International TranStar.The name is derived from International Harvester Transtar, used for various Class 8 conventional and cabover highway tractors from the 1960s to the 1980s.