The order, worth $357 million, follows last month's delivery order for 250 MaxxPro Dash Mine Resistant Ambush Protected ambulances.
"The MaxxPro Dash was the first MRAP to be modified specifically for the Afghan terrain and we have continued to enhance its capabilities all along the way," the company said.
Navistar has grown its fleet of MaxxPro vehicles to more than 8,700 units by leveraging its current commercial capabilities and assets, which includes the commercial International WorkStar platform. First, the company added the DXM independent suspension solution capability to new production vehicles. This was followed by orders for the new MaxxPro Recovery vehicle and most recently the MaxxPro Dash ambulance.
The company has also developed a MaxxPro flatbed truck.
"We have nine major MaxxPro variants in or on their way to theater today thanks to the flexibility of our proven vehicle platforms," said Navistar Defense President Archie Massicotte.
Production of the new units will occur in Garland, Texas, and West Point, Miss. Deliveries will be completed by September, the company said.
2014: The Year in Music [PHOTOS]