Automotive Parts Ordering Industry Leader for the Aftermarket, OEM, Salvage, and Heavy-Duty Markets. WHI Solutions, Inc. is the leading provider of web based e-Business applications for the transportation industry with a complete suite of integrated solutions that helps companies cost effectively serve their customers, increase sales, improve customer service, and reduce cost. Nexpart by WHI is the #1 Parts Ordering Network for the Aftermarket, OEM, Heavy-Duty, and Recycled markets supporting 370,000 active buyers, 43,000 seller locations, and over $5 Billion in annual parts purchases, all driven by the industry’s most advanced and feature rich eCatalog. The new Multi-Seller version of Nexpart enables end users to lookup parts and view real time price and availability from all their favorite suppliers at the same time.