This manual covers the T8040 Tractor, a powerful agricultural machine produced in the mid-to-late 2000s. As part of the high-horsepower T8000 series, the T8040 was designed for demanding farming tasks, building on a heritage of innovation in agricultural equipment. Its robust engineering ensures reliability for extensive fieldwork, and this illustrated parts catalog provides comprehensive identification for all its components. The purpose of this English-language manual is to serve as an illustrated parts catalog, offering detailed component-level identification and breakdown. It facilitates the ordering of replacement parts by providing exact part numbers and includes visual guides for assembly and disassembly. The catalog covers key systems including the powertrain, hydraulics, chassis, operator station, electrical system, cooling system, fuel system, and braking system, ensuring owners and technicians can accurately source and replace parts to maintain the tractor's operational integrity and minimize downtime.