International Truck announced it reached a multi-year supply agreement and secured orders for 1,050 new Class 8 on-highway tractors from a provider of fleet and owner-operator leasing services.In addition, the customer indicated it intends to order an additional 7,950 trucks later this month for delivery through the end of 2017.The orders would consist primarily of International ProStar and LoneStar vehicles powered by Cummins ISX-15 engines and spread across the next three years, according to the company. "Customers continue to recognize that the heavy-duty products we are building today are among the best we have built in decades, with uptime and fuel economy performance that leads the industry," said Bill Kozek, president, Navistar Truck and Parts. "This customer has experienced our new products firsthand and their International models are leading the way in fuel economy performance when compared to competitive models."