Navistar International is an American manufacturer of commercial trucks, buses, and engines. Founded in 1902, the company is known for producing a range of vehicles, including International Trucks and IC Bus. Navistar focuses on providing reliable and efficient transportation solutions for various industries. The company has a strong commitment to innovation and sustainability, developing advanced technologies to improve vehicle performance and reduce emissions. Navistar also offers a variety of services, including parts and maintenance support, to ensure the longevity and efficiency of its vehicles in the market.