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Oshkosh Defense Displays Advanced Technologies at Pentagon Energy Security Event

HEMTT A3 offers 20 percent improved fuel efficiency and exportable power for the U.S. military

OSHKOSH, Wis. (Oct. 14, 2010) — Oshkosh Defense, a division of Oshkosh Corporation (NYSE:OSK), will have its Heavy Expanded Mobility Tactical Truck (HEMTT) A3 on display at the Pentagon Energy Security Event. The only military vehicle of its kind, the HEMTT A3 delivers greater fuel efficiency and the added capability of delivering enough exportable energy to power an airfield, hospital or command center.

“It is an honor to showcase the Oshkosh HEMTT A3’s capabilities at the Pentagon as part of Energy Awareness Month,” said Mike Ivy, vice president and general manager of Army Programs for Oshkosh Defense. “This vehicle is a great example of our commitment to support the Army with technology that enables greater capabilities while improving fuel efficiency. We think this truck will lead the way to the next generation of tactical wheeled vehicles.”

The HEMTT A3 uses the Oshkosh ProPulse® hybrid diesel-electric drive technology to deliver 100 kW of exportable military-grade power and 20 percent improved fuel economy. At the event, the HEMTT A3 is being displayed with a fully integrated Mobile Land-based Phalanx Weapon System (MLPWS) from Raytheon. The MLPWS recently completed a proof of concept demonstration at Yuma Proving Grounds and met all demonstration objectives.

The HEMTT A3 delivers greater efficiency and exportable power capabilities without compromising the vehicle’s payload and protection. In addition to powering an airfield, hospital or command center, the vehicle can also be used to mobilize and power weapon systems, IED-suppression technologies and radar systems. By eliminating the need for extra support equipment, such as trailer-mounted generators, the vehicle offers the Army leaner, more mobile fleets and a reduced logistics footprint.

Oshkosh is also displaying a REMM™ (Renewable Energy Mission Module) system at the event. The REMM, which Oshkosh is developing under license by Natural Power Concepts, uses a folding blade wind turbine and photovoltaic solar panel modules to provide renewable electrical power for expeditionary missions and forward-operating bases (FOBs), as well as for humanitarian and disaster recovery missions anywhere in the world. The REMM can also integrate expanded capabilities, such as water purification and desalination systems.

The purpose of the Pentagon Energy Security Event, October 12-15, is to promote energy-security initiatives across the Department of Defense, and empower its work force with knowledge about energy-related national security issues.

About Oshkosh Defense

Oshkosh Defense, a division of Oshkosh Corporation, is an industry-leading global designer and manufacturer of tactical military trucks and armored wheeled vehicles, delivering a full product line of conventional and hybrid vehicles, advanced armor options, proprietary suspensions and vehicles with payloads that can exceed 70 tons. Oshkosh Defense provides a global service and supply network including full life-cycle support and remanufacturing, and its vehicles are recognized the world over for superior performance, reliability and protection. For more information, visit oshkoshdefense.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®, Oshkosh Specialty Vehicles, Frontline™, SMIT™, CON-E-CO®, London® and IMT®. Oshkosh products are valued worldwide in businesses where high quality, superior performance, rugged reliability and long-term value are paramount. For more information, visit 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 presentation, 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 impact on revenues and margins of the projected decrease in M-ATV production rates; the cost of any warranty campaigns related to the Company’s products; the cyclical nature of the Company’s access equipment, commercial and fire & emergency markets, especially during periods of global economic weakness and tight credit markets; the duration of the ongoing global economic weakness, which could lead to additional impairment charges related to many of the Company’s intangible assets and/or a slower recovery in the Company’s cyclical businesses than equity market expectations; the expected level and timing of U.S. DoD procurement of products and services and funding thereof; risks related to reductions in government expenditures in light of U.S. defense budget pressures and an uncertain DoD tactical wheeled vehicle strategy; the potential for the U.S. government to competitively bid the Company’s Army and Marine Corps contracts; the Company’s ability to start production under the FMTV contract at targeted margins; the consequences of financial leverage associated with the JLG acquisition, which could limit the Company’s ability to pursue various opportunities; risks related to the collectability of receivables, particularly for those businesses with exposure to construction markets; 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, particularly in a future economic recovery; risks related to costs and charges as a result of facilities consolidation and alignment; risks associated with international operations and sales, including foreign currency fluctuations and compliance with the Foreign Corrupt Practices Act; risks related to disruptions in the Company’s distribution networks; 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. The Company disclaims any obligation to update such forward-looking statements.