This manual covers the International Harvester 354, 364, and 384 tractor models, representing a generation of robust and reliable agricultural machinery from a historic American manufacturer. These tractors were engineered for durability and versatility, forming an integral part of agricultural productivity. This workshop service repair manual provides comprehensive factory-level information designed to assist owners and technicians in understanding, maintaining, and repairing these iconic machines. The scope of this manual is extensive, encompassing detailed procedures for complete disassembly, step-by-step repair instructions, and in-depth troubleshooting for all major systems. It covers the engine, cooling system, fuel system, power train, axles, clutch, transmission, electrical system, brakes, hydraulic system, power steering, and power take-off, among others. With hundreds of pages, detailed illustrations, schematics, and critical specifications, this resource is invaluable for performing diagnostics, maintenance, and rebuilding tasks, ultimately ensuring the optimal performance and longevity of your International Harvester tractor.