The International Harvester B275 Tractor, produced from the mid-1950s to the early 1960s, represents a significant model in the company's history. This light to medium-duty utility tractor was a popular choice for farm, agricultural, and industrial applications, known for its reliability and durability. Featuring a direct injection diesel engine and a robust manual transmission, the B275 was designed for demanding work, offering approximately 35-40 PTO horsepower. Its straightforward engineering and strong construction contributed to its widespread adoption and enduring legacy, making it a trusted workhorse for generations. This comprehensive service and repair manual provides detailed information for the International Harvester B275 Tractor. It covers essential maintenance procedures, including scheduled service, lubrication, and fluid management, alongside in-depth repair instructions for all major systems such as the engine, transmission, chassis, and electrical components. The manual also includes troubleshooting guides to assist in diagnosing and resolving common issues. Its purpose is to empower owners, mechanics, and technicians with the knowledge required to maintain the tractor's optimal performance and longevity, ensuring its continued operational effectiveness.