This manual covers the Fiat 1380 and 1380DT agricultural tractors, representing a generation of robust and powerful machinery from a manufacturer with a long heritage in agricultural equipment. These tractors are known for their durability and engineering, designed for demanding work environments. The 'DT' designation indicates a Dual Traction or 4WD variant, highlighting the advanced drivetrain capabilities for their production era, likely the late 1970s to early 1980s. The Fiat 1380 series embodies the brand's commitment to reliable performance and efficient operation in agricultural applications. This comprehensive service parts catalog and repair manual is designed to assist both DIY owners and experienced mechanics in maintaining and repairing the Fiat 1380/1380DT. It provides detailed coverage of all major systems, including the engine, lubrication, cooling, fuel, clutch, transmission, drivetrain, axles, brakes, steering, hydraulics, and electrical systems, complete with wiring diagrams. The manual offers step-by-step repair procedures, routine maintenance schedules, advanced troubleshooting guides, and essential technical specifications such as torque values and fluid capacities, ensuring the tractor remains in optimal working condition.