The International Harvester (IH) Cub Cadet 73, produced in the mid to late 1960s, represents a robust and versatile compact utility tractor designed for home landscaping, gardening, and light property maintenance. Built upon the strong heritage of early Cub Cadet models, the 73 is recognized for its reliability and engineering quality. It features an air-cooled, horizontally opposed twin-cylinder gasoline engine, typically around 7.9 cubic inches (129 cc) and producing approximately 7 horsepower, often paired with a hydrostatic drive transmission for smooth operation. Its solid construction, with a wheelbase of approximately 44 inches and a dry weight around 450-500 lbs, underscores its capability for various tasks. This comprehensive workshop service and repair manual provides detailed information for maintaining and repairing the IH International Cub Cadet Tractor 73. Covering a wide array of systems including the engine, transmission, hydraulics, electrical, steering, and brakes, it offers step-by-step repair instructions, overhaul procedures, and diagnostic guidance. The manual is intended for professional technicians, DIY mechanics, and owners, enabling them to perform routine maintenance, troubleshooting, and complex repairs. With hundreds of pages of detailed diagrams, specifications, and procedures, this English-language manual is an essential resource for ensuring the longevity and optimal performance of your Cub Cadet 73.