This article describes the hauler truck. Alternatively, you may be looking for Colonel Jackson Hauler.
The hauler is a large terran truck that is nearly ten feet tall. It is suspended by six tires, three on each side, the cabin jutting out from the front. It is used for the supply of military bases.
References[]
Hickman, Tracy (May 21, 2002). StarCraft: Speed of Darkness. Simon & Schuster (Pocket Star). ISBN 0-671-04150-9