AM General manufactures is one of the leading designers, engineers and producers of military and special purpose vehicles in the world. The company offers a variety of transportation solutions for the U.S. government. It designs and develops Central Tire Inflation System for the Humvee M809 and M939 trucks. The company provides a variety of spare parts, as well as training support services. AM General also offers logistics support services throughout the world. Its engineering and product development center provides technical support services for several military vehicle systems. The company has been in operation for more than 75 years. AM General is a wholly owned subsidiary of General Engine Products.