This manual covers the Volvo 16-Liter engine series, including models TAD1630GE, TAD1631GE, TID162AP, TWD1620GE, TWD1630GE, and TD164KAE. These robust diesel engines are engineered for demanding applications, offering substantial power output ranging from approximately 330-550 kW (443-738 hp) and high torque suitable for heavy-duty industrial, marine, power generation, and off-highway vehicle use. With a displacement of 16.1 liters and advanced common rail fuel systems, these engines are built for reliability and performance in challenging environments. This Factory Service Repair Manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of these Volvo engines. It details essential procedures, technical specifications, and safety information necessary for owners, mechanics, and technicians. Covered topics include recommended service intervals for oil and filter changes, oil type and capacity, and emission standard considerations, ensuring optimal performance and longevity of the engine.