Warrenville, Illinois - December 13, 2006
International Truck and Engine Corporation launched today a new Web site for its Engine Group, which consists of its North American operations and South American subsidiary, MWM INTERNATIONAL. The new site, www.InternationalEngines.com, presents a fresh look at the world’s leading diesel engine manufacturer.

"The creation and launch of InternationalEngines.com reflects the global perspective of our business," said Tim Cooney, vice president, worldwide sales and marketing, International Engine Group. "Our ability to serve global markets with Euro and U.S. Environmental Protection Agency certified products is highlighted in this new Web site and exemplifies the capabilities of the International Engine Group."

The new International Engine Group site provides a global overview of the company by integrating its North and South American businesses and products. International’s product line ranges from 50 to 375 horsepower (37 to 280 kilowatts) and it is the global leader in the production of mid-range diesel engines, 160 to 350 horsepower (119 to 260 kilowatts). In North America, it has nearly 50 percent share of the diesel pickup engine market and 40 percent of the market for medium-duty commercial trucks and buses.

In South America, International has more than 50 percent market share in the mid-sized consumer pickup and SUV segments and accounts for nearly 40 percent of all diesel engines produced in that market. Additionally, the company provides diesel engines to some of the most important corporations in the automotive, agricultural and industrial segments.

The central feature of the new site is the product selector, which guides visitors to the appropriate MaxxForce, International or MWM INTERNATIONAL engine based on the application of interest and geographic location the visitor specifies. Other resources on the site include background information on the company and its engine plants under the "About Us" tab, the company’s application capabilities under the "Industries Served" tab and a "News Room."

MaxxForce™ International Diesel Power is the new global brand for International on-highway diesel engines. MaxxForce stands for performance and reinforces International’s commitment for its engines to perform at the highest level so its customers can perform at their highest level. MaxxForce engines will be available beginning with the 2008 model-year Class 4 through Class 8 International commercial trucks and backed by 900 locations in North America and dealers in 48 countries.

MWM INTERNATIONAL produces a broad line of diesel engines that provide customers with engine offerings in the agriculture, marine and light truck markets. MWM INTERNATIONAL is a leader in the Brazilian diesel engine market and has its products in more than 30 countries on five continents.

Customers outside of North America should go to www.MWM-International.com.br for detailed information on International’s Euro-emissions compliant engine offerings. The site is available in Spanish, Portuguese and English.

International Truck and Engine Corporation
International Truck and Engine Corporation is the operating company of Navistar International Corporation (NYSE: NAV). The company produces International® brand commercial trucks, mid-range diesel engines and IC brand school buses, Workhorse brand chassis for motor homes and step vans, and is a private label designer and manufacturer of diesel engines for the pickup truck, van and SUV markets. The company is also a provider of truck and diesel engine parts and service sold under the International® brand. A wholly owned subsidiary offers financing services. Additional information is available at: www.internationaldelivers.com.