This manual pertains to the International Harvester 454, a robust and reliable vehicle designed for a variety of demanding applications. While specific production years are not detailed, this comprehensive guide covers all styles. The engineering quality inherent in the International Harvester brand ensures exceptional performance and longevity, making the 454 a trusted choice for its intended operational purposes. This Factory Service Repair Manual provides extensive information for the maintenance and repair of your International Harvester 454. It includes detailed step-by-step repair procedures, advanced troubleshooting guides, and essential technical specifications. Coverage encompasses all major systems, including the engine, transmission, drivetrain, chassis, body, and electrical components. With hundreds of pages of detailed diagrams, photos, and wiring schematics, this manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain the optimal performance and condition of their vehicle.