Navistar Confirms Details for Third Quarter Conference Call

WARRENVILLE, Ill.--Sept. 7, 2006--Navistar International Corporation , the nation's largest combined commercial truck, school bus and mid-range diesel engine producer, confirmed today that it will hold a live audio Web cast Wednesday, September 13, 2006, at 10 a.m. Central Daylight Time to discuss business highlights for the third fiscal quarter ended July 30, 2006, and provide a strategic initiatives update. A news release highlighting activities to be discussed will be distributed on Business Wire approximately three hours in advance of the call.

Speakers on the call will include Daniel C. Ustian, chairman, president and chief executive officer and Bill Caton, executive vice president and chief financial officer.

The Web cast can be accessed through a conference call link on the investor relations page of Navistar's Web site at http://ir.navistar.com/medialist.cfm. Investors are advised to log on to the Web site at least 10 minutes prior to the call to allow sufficient time for downloading any necessary software. Third quarter statistical information that will be provided as part of the call will be available to investors on the investor relations page of the company's Web site prior to the start of the call. The Web cast will be available for replay at the same address approximately three hours following its conclusion through 5 p.m. on December 7, 2006.

Information provided and statements contained in the presentation that are not purely historical are forward -looking statements within the meaning of Section 27A of the Securities Act, Section 21E of the Exchange Act, and the Private Securities Litigation Reform Act of 1995. Such forward-looking statements only speak as of the date of the presentation and the company assumes no obligation to update the information included in the presentation. Such forward-looking statements include information concerning our possible or assumed future results of operations, including descriptions of our business strategy. These statements often include words such as "believe," "expect," "anticipate," "intend," "plan," "estimate" or similar expressions. These statements are not guarantees of performance or results and they involve risks, uncertainties and assumptions, including the risk of continued delay in the completion of our financial statements and the consequences thereof, the availability of funds, either through cash on hand or the company's other liquidity sources, to repay any amounts due should any of the company's debt become accelerated, and decisions by suppliers and other vendors to restrict or eliminate customary trade and other credit terms for the company's future orders and other services, which would require the company to pay cash and which could have a material adverse effect on the company's liquidity position and financial condition. Although we believe that these forward-looking statements are based on reasonable assumptions, there are many factors that could affect our actual financial results or results of operations and could cause actual results to differ materially from those in the forward-looking statements. For a further description of these factors, see Exhibit 99.1 to our Form 8-K filed on April 12, 2006. In addition, until the previously announced review by the company of its accounts is concluded, no assurance can be given with respect to the financial statement adjustments, impacts and period resulting from such review, if any, nor can there be any assurance that additional adjustments to the financial statements of the company will not be identified.

Navistar International Corporation is the parent company of International Truck and Engine Corporation. The company produces International(R) 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. Navistar is also a provider of truck and diesel engine parts and service sold under the International(R) brand. A wholly owned subsidiary offers financing services. Additional information is available at: www.nav-international.com.