New order follows recent production of 68 mini-pumpers and 68 pumper rescues for TACOM

August 13, 2009 – Appleton, Wis. – Pierce Manufacturing, an Oshkosh Corporation (NYSE:OSK) company, today announced it has received a major order from the U.S. Army Tank-Automotive and Armaments Command (TACOM) for 51 Pierce® pumper rescue vehicles. This non-tactical vehicle award follows the recently completed production of 68 pumper rescue vehicles and 68 mini-pumper vehicles. The total value of all three orders is $27.7 million.

The pumper rescue vehicles will be deployed throughout Afghanistan in support of the Afghanistan National Security Forces. Delivery is schedule to begin in January 2010.

“Pierce is proud to play a vital role in this important TACOM initiative,” said Wilson Jones, Oshkosh Corporation executive vice president and president, Fire & Emergency. “We have a proven track record of delivering outstanding performance and value to TACOM, and these recent orders directly reflect the quality of our products and our people.”

The Pierce pumper rescue is custom-engineered and built on a Ford F-550 crew cab chassis with an integrated 550-gallon water/foam tank and 500 gallons-per-minute pump. Its firefighting capabilities are maximized with a compressed air foam system (CAFS) to support the quick response requirements in firefighting over the rugged and arid terrain of Afghanistan.

“These rugged vehicles, outfitted with compressed air foam systems and full pump-and-roll capability, are ideally suited to remote locales where an abundant water supply is not available,” added Jones. “They are reliable, simple to operate and carry a full complement of tools and equipment.”

The vehicles are designed to operate 50 percent of their missions on paved roads, 40 percent on unpaved roads and 10 percent off road. They feature a 4X4 chassis with a two-speed transfer case and heavy-duty suspension components. The rescue pumpers can ford water 16-inches deep and maintain a speed of at least 65 mph on a level highway

About Pierce Manufacturing

Pierce Manufacturing Inc., an Oshkosh Corporation [NYSE: OSK] company, is the leading North American manufacturer of custom fire apparatus. Products include custom and commercial pumpers, aerials, rescue trucks, wildland trucks, mini-pumpers, elliptical tankers, and homeland security apparatus. In addition, Pierce designs its own foam systems and was the first company to introduce frontal airbags and the Side Roll Protection system to fire apparatus.

To learn more about Pierce visit www.piercemfg.com

About Oshkosh Corporation

Oshkosh Corporation is a leading designer, manufacturer and marketer of a broad range of specialty access equipment, commercial, fire & emergency and military vehicles and vehicle bodies. Oshkosh Corporation manufactures, distributes and services products under the brands of Oshkosh®, JLG®, Pierce®, McNeilus®, Medtec®, Jerr-Dan®, BAI™, Oshkosh Specialty Vehicles, Frontline™, SMIT™, CON-E-CO®, London® and IMT®. The Oshkosh brands are valued worldwide in businesses where high quality, superior performance, rugged reliability and long-term value are paramount. For more information, log on to www.oshkoshcorporation.com.

^®, ™ All brand names referred to in this news release are trademarks of Oshkosh Corporation or its subsidiary companies.

Forward-looking Statements

This press release contains statements that the Company believes to be “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including, without limitation, statements regarding the Company’s future financial position, business strategy, targets, projected sales, costs, earnings, capital expenditures, debt levels and cash flows, and plans and objectives of management for future operations, are forward-looking statements. When used in this press release, words such as “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “believe,” “should,” “project” or “plan” or the negative thereof or variations thereon or similar terminology 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, which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include the consequences of financial leverage associated with the JLG acquisition, including the level of the Company’s borrowing costs, the increased interest rates the Company would face if it experienced a deterioration or downgrade in credit agency ratings and the Company’s ability to maintain compliance with its financial covenants under its credit agreement; the cyclical nature of the Company’s access equipment, commercial and fire & emergency markets, especially during a global recession and credit crisis; the duration of the global recession, which could lead to additional impairment charges related to many of the Company’s intangible assets; risks related to the required rapid increase in the rate of production for the M-ATV contract and the amount, if any, of additional orders for M-ATVs that the Company may receive; the expected level and timing of U.S. Department of Defense procurement of products and services and funding thereof; risks related to reductions in government expenditures and the uncertainty of government contracts; risks related to production delays as a result of the economy’s impact on the Company’s suppliers; the potential for commodity costs to rise sharply in a future economic recovery; risks associated with international operations and sales, including foreign currency fluctuations; risks related to the collectability of receivables during a recession, particularly for those businesses with exposure to construction markets; and the potential for increased costs relating to compliance with changes in laws and regulations. Additional information concerning these and other factors is contained in the Company’s filings with the Securities and Exchange Commission, including the prospectus supplement for the offering to which this communication relates. All forward-looking statements speak only as of the date of this press release. The Company assumes no obligation, and disclaims any duty, to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

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