The International VT365 is a robust V8 Turbo Diesel engine, displacing 6.0 liters (365 cubic inches). Engineered for demanding applications, this engine typically delivers power outputs ranging from approximately 230 to 300 horsepower and torque figures between 500 and 540 lb-ft, depending on the specific configuration. It features a High-Pressure Common Rail (HPCR) fuel system for efficient combustion and advanced emission control systems including Exhaust Gas Recirculation (EGR) and a Diesel Particulate Filter (DPF). Paired commonly with automatic transmissions, such as those from Allison, and often equipped with a Variable Geometry Turbocharger (VGT) and glow plugs for cold starts, the VT365 is designed for reliable performance. This Full Service Repair Manual provides comprehensive guidance for the International VT365 engine. It covers essential maintenance procedures, including fluid capacities such as approximately 12-15 quarts for oil, and details on filter types. The manual also delves into diagnostic and troubleshooting information, outlining the use of OBD-II scanners and specialized software. Technical specifications, component descriptions, and safety guidelines are thoroughly explained, making this an indispensable resource for owners, mechanics, and technicians aiming to maintain, service, and repair the VT365 engine effectively.