This manual covers the Volvo TAD1343GE, TAD1344GE, and TAD1345GE industrial diesel engines. These inline 6-cylinder engines are turbocharged and intercooled, featuring a displacement of 12.8 liters. They are engineered for demanding applications such as industrial use, power generation, marine, and construction equipment, offering power outputs typically ranging from 300 to 450 horsepower. Known for their robust construction and reliability, these engines are designed to deliver consistent performance in challenging environments. The purpose of this comprehensive Service Repair Manual (WSM) is to provide detailed information for the maintenance, repair, and servicing of these Volvo engines. It includes essential technical specifications, maintenance schedules for oil and filter changes, fluid capacity guidelines, and troubleshooting procedures. This manual is an indispensable resource for owners, technicians, and mechanics, enabling them to effectively maintain the engine's optimal performance, ensure longevity, and address any operational issues with precision and confidence.