The International Harvester B-275 tractor, a robust and versatile utility machine, was a significant contributor to agricultural mechanization during its production period in the late 1950s and early 1960s. Known for its rugged construction and reliable diesel engine, the B-275 was designed to handle a wide array of farming tasks, making it a popular choice for small to medium-sized farms. Its enduring legacy is built upon its durability and ability to serve as a dependable workhorse, a testament to International Harvester's reputation for producing quality agricultural equipment. This comprehensive parts manual serves as an essential resource for owners, mechanics, and technicians involved with the International Harvester B-275 tractor. It provides detailed illustrations and part numbers for every component, covering critical systems such as the engine, transmission, clutch, rear axle, hydraulic system, steering, brakes, and electrical components. The manual's exploded diagrams offer valuable visual guidance for understanding part relationships, facilitating accurate part identification, ordering, and replacement, thereby ensuring the continued operational integrity and longevity of the B-275.