This workshop service manual covers the Volvo TAD1345GE, an inline 6-cylinder diesel engine with a displacement of 12.8 liters. Engineered for demanding applications in industrial, marine, and power generation sectors, this engine delivers robust performance with a power output of 390 kW (523 hp) and 2200 Nm of torque. Its design emphasizes reliability and efficiency, featuring a water-cooled system, a wet sump lubrication system, and Electronic Unit Injector (EUI) fuel injection. The engine adheres to Stage II emission standards and is equipped with a fixed geometry turbocharger, making it a powerful and dependable choice for heavy-duty operations. This comprehensive English-language manual is designed for professional technicians and provides essential information for the maintenance and repair of the Volvo TAD1345GE. It details critical procedures, including lubrication specifications with an oil capacity of 38 liters and recommended oil grades such as API CI-4 Plus or ACEA E4/E7. The manual outlines service schedules for oil and filter replacements every 500 operating hours. Additionally, it includes technical specifications, troubleshooting guidance, and safety protocols to ensure the optimal performance and longevity of the engine.