Allison Transmission Holdings Inc. (NYSE: ALSN), a leading designer and manufacturer of conventional and electrified vehicle propulsion solutions and the largest global manufacturer of medium- and heavy-duty fully automatic transmissions for commercial and defense vehicles, today announced that it will hold its third quarter 2023 financial results conference call at 5:00 p.m. EDT on Wednesday, October 25, 2023. David S. Graziosi, Chairman and Chief Executive Officer, and G. Frederick Bohley, Senior Vice President, Chief Financial Officer and Treasurer, will review the company's financial performance for the period. The news release announcing the financial results will be issued post market on Wednesday, October 25.

The dial-in phone number for the conference call is +1-877-425-9470 and the international dial-in number is +1-201-389-0878. A live webcast of the conference call will be available online at ir.allisontransmission.com in addition to the third quarter results press release on the 'News Releases' page. For those unable to participate in the conference call, a replay will be available from 9:00 p.m. EDT on October 25 until 11:59 p.m. EDT on November 8. The replay dial-in phone number is +1-844-512-2921 and the international replay dial-in number is +1-412-317-6671. The replay passcode is 13741446.

About Allison Transmission

Allison Transmission (NYSE: ALSN) is a leading designer and manufacturer of propulsion solutions for commercial and defense vehicles and the largest global manufacturer of medium- and heavy-duty fully automatic transmissions that Improve the Way the World Works. Allison products are used in a wide variety of applications, including on-highway trucks (distribution, refuse, construction, fire and emergency), buses (school, transit and coach), motorhomes, off-highway vehicles and equipment (energy, mining and construction applications) and defense vehicles (tactical wheeled and tracked). Founded in 1915, the company is headquartered in Indianapolis, Indiana, USA. With a presence in more than 150 countries, Allison has regional headquarters in the Netherlands, China and Brazil, manufacturing facilities in the USA, Hungary and India, as well as global engineering resources, including electrification engineering centers in Indianapolis, Indiana, Auburn Hills, Michigan and London in the United Kingdom. Allison also has approximately 1,600 independent distributor and dealer locations worldwide. For more information, visit allisontransmission.com.

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