WARRENVILLE, Ill. (March 21, 2011) Navistar Defense, LLC today held a grand opening for its new location in Madison Heights, Mich. The office is in proximity to the company’s U.S. Army TACOM customer and houses more than 180 employees. Navistar was previously located in Sterling Heights, Mich., until it outgrew the space.

“We are proud to be a part of the Madison Heights community while we work to provide our warfighters with the best vehicle solutions possible,” said Archie Massicotte, president, Navistar Defense. “Our engineering team in Madison Heights provides system technical support to continually enhance our MaxxPro MRAP vehicles as well as other vehicle product lines.”

Since receiving its original International® MaxxPro® Mine Resistant Ambush Protected (MRAP) vehicle contract in May 2007, Navistar has emerged as one of the leading providers of MRAP vehicles. Navistar currently supports a vehicle fleet of more than 30,000 vehicles in 26 different countries. These vehicles include MaxxPro units, International® MXT vehicles and military commercial off the shelf variants such as general troop transport vehicles, water tankers, fuel trucks, wreckers and more.

Navistar International Corporation (NYSE: NAV) is a holding company whose subsidiaries and affiliates produce International® brand commercial and military trucks, MaxxForce® brand diesel engines, IC Bus™ brand school and commercial buses, Monaco® RV brands of recreational vehicles, and Workhorse® brand chassis for motor homes and step vans. It also is a private-label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company also provides truck and diesel engine service parts. Another affiliate offers financing services. Additional information is available at www.Navistar.com/newsroom.

Media contact: Elissa Koc, Navistar Defense, 630-753-2669