Webcast Alert: Wabash National Corporation Announces Its First Quarter 2005 Earnings Results Conference Call Webcast

LAFAYETTE, Ind.--April 20, 2005--Wabash National Corporation announces the following Webcast:

What:       Wabash National Corporation First Quarter 2005 Earnings
            Results Conference Call Webcast

When:       April 21, 2005 @ 10:00 AM Eastern

Where:      http://www.vcall.com/EventPage.asp?ID=91402

How:        Live over the Internet -- Simply log on to the web at the
            address above.

Contact:    Sara Fine, 765-771-5300 or Sara_Fine@wabashnational.com

If you are unable to participate during the live webcast, the call will be available for replay at http://www.vcall.com/ClientPage.asp?ID=91402 or http://www.vcall.com/