The M915 is a baseline model of a series of heavy army trucks.
In the late 1970s the US Army was looking for commercial logistic trucks. In 1977 a request was issued for a series of heavy trucks. The US Army received technical proposals from six manufacturers. The AM General offered the lowest price and was selected as a winner. In 1977 the US Army awarded a contract for 5 507 trucks. First vehicles were delivered to the US Army in 1978.
The M915 Line Haul Tractor (LHT) is primarily used for long distance movement of containers. It is used to move cargo from port to division operation area. Normally this truck tows M872 semi-trailer with a payload capacity of 30 t.
This line haul tractor is powered by Cummins NTC 400 turbocharged diesel engine, developing 400 hp. It is mated to Caterpillar semi-automatic gearbox with 16 forward and 2 reverse gears. This tractor truck has 6x4 configuration. Its operation is limited to hard surface roads only.