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Oshkosh Defense Completes 7,500 Miles of M-ATV Durability Testing

OSHKOSH, Wis. — June 18, 2009 — Oshkosh Defense, a division of Oshkosh Corporation (NYSE:OSK), is on target to complete 10,000 miles of on- and off-road durability testing of its MRAP All Terrain Vehicle (M-ATV) at the Nevada Automotive Test Center, further proving the vehicle’s endurance through extended operations in challenging environments.

Oshkosh Defense has already performed more than 7,500 miles of independent testing using its own time and resources to ensure the vehicle would be ready for operations on Afghanistan’s harsh terrain and to identify any possible enhancements that could be made. Rigorous testing is part of the Oshkosh standard process to make certain its vehicles are ready to withstand the demanding environments in which they operate.

“This is a significant milestone that showcases the durability and off-road capabilities of the Oshkosh M-ATV,” said Andy Hove, Oshkosh Corporation executive vice president and president, Defense. “We are committed to providing the U.S. Armed Forces with a high-performance vehicle that answers the urgent-need requirement in Afghanistan. Our independent testing is helping us accomplish that.”

The testing has confirmed the vehicle’s exceptional off-road performance, which is benefited by the integration of the Oshkosh TAK-4® independent suspension system, and validated the durability of its entire integrated system. Utilizing vehicle components and technologies that are already in combat, the Oshkosh M-ATV is the most mission-proven option available to the U.S. Armed Forces. It is based on the combat-tested Oshkosh® Medium Tactical Vehicle Replacement (MTVR) chassis and features the same C7 engine used on the U.S. Army’s current medium fleet. The vehicle’s superior armor and survivability system was provided by Plasan North America, which contributed the armor for more than 5,000 MRAPs in theater.

The TAK-4 system is the only readily available and theater-tested off-road suspension system used by the U.S. military for this class of vehicle. Oshkosh recently received a contract to equip more than 1,500 MRAPs with TAK-4 suspension and continues to work with the military to evaluate using it on additional MRAP models. The advanced suspension system, which has undergone more than 400,000 miles of government testing, is also featured on the U.S. Army’s Palletized Load System (PLS-A1) as well as the U.S. Marine Corps’ MTVR and Logistics Vehicle System Replacement (LVSR).

The Oshkosh M-ATV is delivered with the survivability, mobility, mission-proven and production-ready solutions required for Afghanistan. The vehicle is based on a combat-proven chassis that has been successfully operating for years in the most difficult off-road missions in Afghanistan, Iraq and around the world.

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 Corp. manufactures, distributes and services products under the brands of Oshkosh®, JLG®, Pierce®, McNeilus®, Medtec®, Jerr-Dan®, BAI®, Oshkosh Specialty Vehicles, Frontline™, SMIT™, Geesink™, Norba™, Kiggen™, 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, log on to www.oshkoshcorporation.com.

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