The McCormick-Deering Farmall F-12 and F-14 tractors, produced between 1932 and 1939, represent a significant era in agricultural mechanization. These models, built by International Harvester, offered robust performance for their time, with the F-12 delivering up to 10 drawbar horsepower and the F-14 up to 15 drawbar horsepower. Their engineering focused on reliability and functionality, essential for the demanding tasks of farming. The F-14, evolving from the F-12, provided enhanced power and efficiency, reflecting continuous development in tractor technology. These tractors were manufactured at the Farmall Works in Rock Island, Illinois, with substantial production numbers underscoring their importance. This Parts Catalog and Technical Manual (TC-9-B) is an indispensable resource for owners, restorers, mechanics, and parts suppliers of the McCormick-Deering Farmall F-12 and F-14 tractors. It provides comprehensive coverage of all parts, featuring detailed exploded drawings that are crucial for accurate identification, ordering, and correct assembly of components. The manual covers all major systems, including the engine, fuel, ignition, transmission, drive, steering, braking, and chassis. While it focuses on parts identification and cataloging rather than repair procedures, it serves as a foundational document for understanding the tractor's construction and ensuring proper part procurement for maintenance and restoration efforts.