A 10x10 variant of the HEMTT truck is used as prime mover in the Palletized Load System (PLS). The vehicle is produced by the Oshkosh Truck Corporation. In the civilian realm the truck's chassis is also used in airport firefighting vehicles.
The HEMTT's objective is to provide heavy transport capabilities for supply and re-supply of combat vehicles and weapons systems, for the United States Army and Marine Corps. It is distinguished by extreme mobility compared to standard 5-ton trucks, thanks to its large number of wheels, combined with all-wheel drive and very large, low-pressure tires. Though far less publicized than the Humvee, it has been extremely important in transporting logistics behind quick-moving forces based on the M1 Abrams tank. Having proved itself as a key workhorse of the US heavy tactical wheeled vehicle fleet, about 13,000 HEMTT vehicles are in service today.