Navistar Defence has won a $348m order from the US Army for an additional 1,928 versatile medium tactical vehicles (MTVs) for use in Afghanistan.
The company also received a four-year system technical support (STS) contract worth up to $78m to provide engineering support for the army's mine-resistant ambush-protected (MRAP) vehicles.
The new delivery order will fulfil the original contract signed in May 2008 for 7,072 vehicles and add an additional 505 units, bringing the total number of vehicles to 7,577 and taking the total contract value to $1.65bn.
Deliveries of the vehicles, which will include general troop transporters, petroleum, oil and lubricant (POL) trucks, wreckers and water tanker variants, will be completed by December 2010.
Navistar's MRAP contract includes work to improve vehicle reliability, support combat issues encountered in theatre, add new kits and hardware, and provide new vehicle enhancements for an additional three years.