FOR IMMEDIATE RELEASE

                                                         Contact: Mark R. Holden
                                                                    765-771-5310



                           WABASH NATIONAL CORPORATION
                ANNOUNCES $100 MILLION CONVERTIBLE NOTES OFFERING


         LAFAYETTE, INDIANA, July 22, 2003 . . . Wabash National Corporation
(NYSE: WNC) announced today that it intends to raise approximately $100 million
through an offering of five-year senior unsecured notes that will be convertible
into shares of Wabash's common stock, subject to market and other conditions.
The interest rate, conversion price and offering price are to be determined by
negotiations between Wabash and the initial purchasers of the notes. The Company
may raise up to an additional $25 million upon exercise of an option granted to
the initial purchasers in connection with the offering.

         The Company expects to use the net proceeds of the offering to repay
outstanding indebtedness.

         This press release does not constitute an offer to sell or the
solicitation of an offer to buy securities. Any offers of the securities will be
made only by means of a private offering circular pursuant to Rule 144A under
the Securities Act of 1993, as amended. The securities have not been, and will
not be, registered under the Securities Act of 1933, as amended, or the
securities laws of any other jurisdiction, and may not be offered or sold in the
United States absent registration or an applicable exemption from registration
requirements.

         Wabash National Corporation designs, manufactures, and markets standard
and customized truck trailers under the Wabash(TM) brand name. The Company is
one of the world's largest manufacturers of truck trailers and a leading
manufacturer of composite trailers. The Company's wholly owned subsidiary,
Wabash National Trailer Centers, is one of the leading retail distributors of
new and used trailers and aftermarket parts throughout the U.S. and Canada.

         This press release contains forward-looking statements that involve
risks and uncertainties, including those described in the section entitled "Risk
Factors" contained in the Company's 2002 Annual Report on Form 10-K filed with
the SEC, that could cause the Company's actual results and experience to differ
materially from anticipated results and expectations expressed in these
forward-looking statements.