The M939 Series is a family of military trucks designed for the United States Army. These vehicles are known for their durability and versatility, capable of transporting troops and equipment in various terrains. The series includes several models, such as the M923 and M925, which differ mainly in payload capacity and configuration. Built on a 5-ton chassis, the M939 trucks feature a 6x6 wheel drive system, providing excellent off-road capabilities. They are powered by a turbocharged diesel engine and can be equipped with various cargo beds, including flatbeds and dump beds, making them suitable for multiple logistical roles in military operations.