The International Harvester B275 tractor, introduced in the mid-1950s, represents a robust and reliable workhorse designed for agricultural and industrial applications. Building on the heritage of earlier 'B' series tractors, this model is characterized by its sturdy construction, dependable diesel engine, and versatile hydraulic system, making it a competitive choice against contemporary models from manufacturers like Massey Ferguson and John Deere. Its approximately 35-40 PTO horsepower, delivered by a 4-cylinder, 2.2-liter diesel engine, provides ample power for a wide range of tasks. The B275 features a constant mesh transmission with typically eight forward and two reverse gears, and a dry single-plate clutch, all contributing to its reputation for durability and efficiency in demanding environments. This comprehensive factory service repair manual provides essential information for the maintenance and repair of the International Harvester B275 tractor. Covering hundreds of pages in English, it details diagnostics, repair, and overhaul procedures for all major systems, including the engine, fuel, cooling, lubrication, electrical, transmission, hydraulics, power take-off, brakes, steering, axles, and chassis. The manual includes guidance on routine maintenance, troubleshooting, engine and transmission rebuilds, hydraulic system repairs, electrical diagnostics, component replacement, and torque specifications. It is designed to assist owners, mechanics, and technicians in keeping the tractor in optimal working condition, ensuring its longevity and performance.