San Antonio, TX (June 7, 2010) Pressure Systems International, manufacturer of the Meritor Tire Inflation System (MTIS™) by PSI with ThermALERT™ technology, presented Wabash National Corporation with their 2009 Athena Award during the Truck Trailer Manufacturers Association meeting held in Orlando, FL April 21-24. Dick Giromini, President & CEO and Steve Miller, Vice President, Supply Chain Management accepted the award on behalf of Wabash National Corporation.

The Athena award is given by PSI each year to the company who does the most to promote the use of the ThermALERT™ technology. ThermALERT™ when included with MTIS™ warns vehicle operators of excessive heat buildup in the wheel end before it results in wheel loss, wheel-end failures, and possibly dangerous and costly trailer fires. MTIS™ by PSI is Wabash National's preferred automatic tire inflation system; the ThermALERT™ technology has been increasingly included in the specifications offering Wabash customers an additional safety feature.

During the award presentation Tim Musgrave President & CEO for PSI thanked Wabash for championing the ThermALERT™ technology. “ThermALERT™ was developed to address the safety concern of possible wheel off situations due to excessive heat buildup in the wheel end and we’re very appreciative that Wabash recognizes the benefits for their customers. Having a trailer manufacturer with Wabash’s reputation support this technology reinforces our belief in the advantages of this technology.” Also in attendance at the award presentation were Steve Robinson, Director OEM Sales and Dealer Programs for PSI; Walt Sherbourne, National Sales Manager, NA Trailer Products, ArvinMeritor; and Craig Frohock, General Manager, NA Trailer Systems, Arvin Meritor

Headquartered in Lafayette, Ind., Wabash National® Corporation (NYSE: WNC) is one of the leading manufacturers of semi trailers in North America. Established in 1985, the company specializes in the design and production of dry freight vans, refrigerated vans, flatbed trailers, drop deck trailers, dump trailers, truck bodies and intermodal equipment. Its innovative core products are sold under the DuraPlate®, ArcticLite®, Eagle® and Benson™ brand names. The company operates two wholly owned subsidiaries; Transcraft® Corporation, a manufacturer of flatbed, drop deck and dump trailers and truck bodies; and Wabash National Trailer Centers, trailer service centers and retail distributors of new and used trailers and aftermarket parts throughout the U.S.

PSI is the world leader in automatic tire inflation systems and markets and sells its product worldwide through ArvinMeritor as the Meritor Tire Inflation System by PSI.

For more information about Pressure Systems International visit their website www.psi-atis.com ArvinMeritor (www.arvinmeritor.com) is one of the industry leaders in supplying technologically advanced axle-braking and suspension systems solutions as original equipment for medium and heavy-duty trucks, trailers, buses, coaches and specialty vehicles worldwide.