This manual covers the Volvo TAD1343GE, TAD1344GE, and TAD1345GE diesel engines, part of the TAD1340 Series. These inline 6-cylinder engines offer displacements of 12.8 L and are designed for industrial applications and generator sets, adhering to Stage IIIA / Tier 3 emission standards. The TAD1343GE produces 250 kW (335 hp) with 1400 Nm of torque, the TAD1344GE delivers 277 kW (372 hp) with 1550 Nm of torque, and the TAD1345GE provides 292 kW (392 hp) with 1635 Nm of torque. These engines feature a liquid-cooled system and a 24V electrical system with a common rail injection system. This comprehensive workshop and repair manual, provided in English, is designed to assist owners, mechanics, and technicians in maintaining and repairing the specified Volvo engines. It includes detailed information on service intervals, lubrication, and other essential maintenance procedures. The manual also covers technical specifications and troubleshooting guidance to ensure optimal performance and longevity of the TAD1343GE, TAD1344GE, and TAD1345GE models.