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Oshkosh Truck Corporation Begins HEMTT A4 Production for U.S. Army

U.S. Army places $207.6 million order for next-generation tactical trucks

OSHKOSH, Wis. , October 17, 2007 — Oshkosh Truck Corporation [NYSE:OSK] Defense Group announced today that the U.S. Army will begin production and fielding of the newest version of the Oshkosh® heavy expanded mobility tactical truck (HEMTT). Designated the HEMTT A4 model, production will commence in November 2007. The new HEMTT A4 was on display at the U.S. Army Association’s Annual Meeting in Washington D.C., October 8-10, 2007.

The U.S. Army has been testing the new Oshkosh HEMTT A4 since June 2006, running up to 45,000 miles. Advantages of the upgraded truck include more horsepower and torque, improved suspension, integrated armor protection under the cab as well as attachments for additional armor. The HEMTT A4 provides state-of-the-art protection for operators and crew against the threats we are facing in Iraq and Afghanistan. In addition, these new technologies can be easily incorporated on existing HEMTTs through Oshkosh Truck’s proven recapitalization program.

“By upgrading the current HEMTT, the U.S. Army will benefit from improved performance, reduced maintenance requirements and improved soldier safety,” said John Stoddart, executive vice president and president, Oshkosh Truck, Defense Group. “Oshkosh Truck is proud to deliver the most advanced truck technology to support U.S. soldiers.”

HEMTT A4 variants under contract include load handling system, cargo vehicle and fuel servicing truck (tanker) for a total of 526 vehicles.

The following features expand the capabilities of the HEMTT A4:

— 500 hp rated Caterpillar C-15 engine peaks at 515 hp providing 70 hp more than the HEMTT A2

— Allison 4500 SP/five-speed automatic transmission, rated for 600 hp and offers 1,750-lb. torque, gross input and handles more power

— Compliant with U.S. Army’s LTAS (Long Term Armor Strategy): Integrated under-cab protection, air conditioning and integrated attachments for armor kits

— Common cab, parts and support with Oshkosh Truck PLS A1 (Palletized load System) reduce the fleet logistics footprint

— Integrated mounting for machine gun mount with gunner protection kit

More than 19,000 HEMTTs have been produced and fielded by Oshkosh Truck. The Army calls the HEMTT “the workhorse of Army combat divisions.” These vehicles have fulfilled logistics support through two wars and various conflicts for more than 20 years.

“Because of the technological advances of the HEMTT A4, soldiers will be even more mobile and protected in order to provide the necessary supplies and equipment to the troops that need them,” said Stoddart.

About Oshkosh Truck Corporation

Oshkosh Truck Corporation is a leading designer, manufacturer and marketer of a broad range of specialty access equipment, commercial, fire and emergency and military vehicles and vehicle bodies. Oshkosh’s products are valued worldwide by rental companies, fire and emergency units, defense forces, municipal and airport support services and concrete placement and refuse businesses where high quality, superior performance, rugged reliability and long-term value are paramount. For more information, log on to www.oshkoshtruck.com.

® The Oshkosh logo is a registered trademark of Oshkosh Truck Corporation, Oshkosh, WI, USA.

Forward-Looking Statements

This press release contains statements that the company believes are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including statements regarding the company’s future financial position, business strategy, targets, projected sales, costs, earnings, capital spending and debt levels, and plans and objectives of management for future operations, are forward-looking statements. When used in this press release, words such as “expects,” “intends,” “estimates,” “anticipates,” or “believes” and similar expressions are generally intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, assumptions and other factors, some of which are beyond the company’s control that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include the cyclical nature of the company’s markets, the company’s ability to successfully integrate the JLG acquisition, the consequences of financial leverage associated with the JLG acquisition, risks related to reductions in government expenditures, the uncertainty of government contracts and the company’s ability to turnaround its Geesink Norba Group business. Additional information concerning these and other factors is contained in the Company’s filings with the Securities and Exchange Commission.

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