BWP-NSI® is a leading supplier of leaf spring and suspension parts for heavy duty trucks and trailers. It traces back its roots in 1996 as Network Sales Incorporated (NSI), operating in a 10,000-sq. ft. rented warehouse in Washington, Missouri. Over the years, it has grown immensely, taking advantage of the Internet to reach more potential customers and make online ordering more convenient than ever. In 2013, it purchased and merged with Brake and Wheel Parts (BWP) to expand the quantity and variety of stock parts that it offers. Today, its comprehensive product offerings also include brake and wheel-end components and other replacement parts for various applications.