McCormick Farmall TC-26F / A and B Tractors Parts Catalog

Farmall A and B Parts Documentation

• Covers 1939–1955 McCormick Farmall A, AV, B, and BN tractors, including specific engine variants for gasoline, kerosene, and distillate fuel systems
• Official International Harvester parts publication, P/N 357070 R91, incorporating Revision No. 1 from July 1955
• Contains over 100 exploded-view diagrams and a complete numerical index of part numbers and assembly pages
• Accessible from your device as soon as the order is placed
• Stored against your account so you can retrieve it after a hard-drive loss
• Laid out for standard letter and A4 printing
• Full-text search finds any part number in seconds
• Cross-reference lookup works via the built-in search
• This 1955 revision provides the most accurate identification for the transition from earlier TC-26-E documentation, essential for matching serialized engine and chassis components

Assembly and System Coverage

This parts catalog provides a structural breakdown of the Farmall A and B series. Each chapter is organized by tractor unit, starting with the carbureted engine and its internal components, then moving to the electrical systems, chassis, and optional attachments. The catalog identifies every major sub-assembly, including the crankcase, fuel tank, transmission, and final drive, accompanied by assembly diagrams for identifying hardware like bolts, nuts, and gaskets. Detailed tables list every part with its reference number, original serial number range, and the quantity required, ensuring clear identification for restoration and maintenance.

Technical Specification Preview

Engine data includes specifications for standard production engines, including specific fuel-burning variants. The catalog lists valve spring collar keys, cylinder head stud dimensions, and piston ring replacement kits for different altitudes and compression requirements. Transmission data covers gear shift rail guides, bearing specifications, and spline shaft components. Detailed electrical system diagrams document the lighting and starting options, such as the Bosch and Delco-Remy generators, along with battery ignition distributor components. For those researching what an OEM service publication covers, this catalog serves as the primary identifier for components across the entire chassis assembly. The final drive and differential sections contain wear-specific parts like axle housing gaskets, bearing shims, and rear wheel shaft variants for high-clearance or standard configurations. A comprehensive 229-page International Harvester OEM parts manual for the 1939–1955 Farmall A and B series tractors, documenting engine, drivetrain, electrical, and chassis components for the full range of production serials.