Big Bear, California Fire Department orders three custom pierce fire apparatus

Ascendant 100’ Heavy-Duty Aerial Tower

• Arrow XT chassis

• Mid-mount configuration

• 300-gallon water tank

• 2,000 gpm pump

• Cummins X15 605 hp engine

• Integrated ground pads

• 20’ setback capacity

• 20-degree below grade operation

• TAK-4 T-3™ Independent Suspension

The Big Bear Fire Department operates out of four fire stations with 58 personnel and responds to over 4,500 calls per year. The service area is a unique mix of rural, mountainous, and urban neighborhoods. The jurisdiction includes two resorts offering skiing and snowboarding in the winter, as well as mountain bike trails and golfing in the spring, summer, and fall seasons. The population for this resort community can fluctuate from approximately 17,800 full time residents to upwards of 250,000 on any given day or holiday weekend, depending on tourist activity. This creates an ever-evolving basis of fire suppression and ambulance needs, for which the Big Bear Fire Department must always be prepared.

Captain Dykesten added, “Although San Bernardino County Fire is able to provide immediate assistance should mutual aid become necessary, one of the biggest challenges Big Bear Fire Department faces is significant additional resources are farther away. The next closest community is 25 miles from us. The commute on mountain highways makes accessibility to critical equipment particularly important for our crew.”

The fire apparatus order is the first the Big Bear Fire Department has placed with South Coast Fire Equipment. Fleet upgrades also include the addition of a Type 3 Model 34 Wildland vehicle from Boise Mobile Equipment.

“We enjoyed having the opportunity to share all of the advanced features Pierce offers to help the Big Bear Fire Department select apparatus to best fit their needs,” said Tim Olley, sales representative at South Coast Fire Equipment. “Our team looks forward to building our relationship and providing dedicated service support for many years to come.”

For a comprehensive review of Pierce pumpers, aerials, and other products, visit www.piercemfg.com for specs, video, and images.

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

At Oshkosh (NYSE: OSK), we make innovative, mission-critical equipment to help everyday heroes advance communities around the world. Headquartered in Wisconsin, Oshkosh Corporation employs approximately 15,000 team members worldwide, all united behind a common cause: to make a difference in people’s lives. Oshkosh products can be found in more than 150 countries under the brands of JLG®, Pierce®, Oshkosh® Defense, McNeilus®, IMT®, Jerr-Dan®, Frontline™, Oshkosh® Airport Products, London™ and Pratt Miller. For more information, visit oshkoshcorp.com.®, ™ All brand names referred to in this news release are trademarks of Oshkosh Corporation or its subsidiary companies.

Forward Looking Statements

This news 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 news 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 extent of supply chain and logistics disruptions, particularly as demand rebounds from the COVID-19 pandemic; the Company’s ability to increase prices or impose surcharges to raise margins or

to offset higher input costs, including increased raw material, labor and freight costs; the cyclical nature of the Company’s access equipment, commercial and fire & emergency markets, which are particularly impacted by the strength of U.S. and European economies and construction seasons; the Company’s estimates of access equipment demand which, among other factors, is influenced by historical customer buying patterns and rental company fleet replacement strategies; the Company’s ability to attract production labor in a timely manner; the strength of the U.S. dollar and its impact on Company exports, translation of foreign sales and the cost of purchased materials; the Company’s ability to predict the level and timing of orders for indefinite delivery/indefinite quantity contracts with the U.S. federal government; risks related to reductions in government expenditures in light of U.S. defense budget pressures and an uncertain U.S. Department of Defense (DoD) tactical wheeled vehicle strategy; the impact of any DoD solicitation for competition for future contracts to produce military vehicles; the impacts of budget constraints facing the U.S. Postal Service (USPS) and continuously changing demands for postal services; the impact of severe weather, natural disasters or pandemics that may affect the Company, its suppliers or its customers; risks related to the collectability of receivables, particularly for those

businesses with exposure to construction markets; the cost of any warranty campaigns related to the Company’s products; risks associated with international operations and sales, including compliance with the Foreign Corrupt Practices Act; risks that a trade war and related tariffs could reduce the competitiveness of the Company’s products; the Company’s ability to comply with complex laws and regulations applicable to U.S. government contractors; cybersecurity risks and costs of defending against, mitigating and responding to data security threats and breaches impacting the Company; the Company’s ability to successfully identify, complete and integrate acquisitions and to realize the anticipated benefits associated with the same; and risks related to the Company’s ability to successfully execute on its strategic road map and meet its long-term financial goals. Additional information concerning these and other factors is contained in the Company’s filings with the Securities and Exchange Commission, including the Form 8-K. All forward-looking statements speak only as of the date of this news release.

The Company assumes no obligation, and disclaims any obligation, to update information contained in this news release. Investors should be aware that the Company may not update such information until the Company’s next quarterly earnings conference call, if at all.