Long Haul is the "evil half" of the Autobot Micromaster Treader, and part of the Decepticon Sixbuilder team. It is unknown how much personality he shares with his other half, who is known as a taciturn brawler.
Note:This character's name is conjectural; though the character is never explicitly named, the Micromaster Collection story material heavily implies what the five non-named members of the Decepticon Sixbuilder team are.
In 2003, the entire Sixbuilder team was re-released as part of the "Micromaster Collection", in individual boxes with a number visible to show which mold was inside each box. Two boxes in each case of twelve had a chase-variant light-green "Destron" version of the character rather than the normal-colored version; all six were available in this way. Treader transforms into a dump truck, and can also form a leg to any similar-build Six-Team robot (Sixturbo, Sixbuilder or Sixwing), though his nominal placement is as Decepticon Sixbuilder's right leg. He came packaged with the right footplate to the combined robot mode.