This transporter is referred to as having a “headed” configuration.  That is, it has a raised engine and controls compartment at one end of the transporter to house the engine-driven generator package, the suspensions hydraulic power pack, and the electrical panels. 

In the “headed” or raised engine compartment versions, transporters are confined to entering and exiting the load in one direction.  Doerfer also builds extremely low profile “headless” transporters, where all of the engine/generator and control components are under the load platform deck.  This allows the transporters to enter and exit loads from ANY direction.  There are specific advantages to both configurations.  Headless transporters are typically used in “tandem” operations where two, three, or four transporters align to carry large loads while operating as a single unit.  Headless transporters can also drive through under several in-line units to handle progressive line moves.