This manual covers the marine diesel engines, including the variants. These engines are engineered for robust performance and reliability, featuring an inline 6-cylinder configuration with a 6.5-liter displacement. The variant delivers approximately 280 HP at 2300 RPM, while the variant offers up to 315 HP at 2300 RPM. Both models utilize advanced direct injection common rail fuel systems and are water-cooled for efficient operation. Their design emphasizes durability and power, making them suitable for demanding marine applications. This comprehensive Factory Service Repair Manual provides essential information for maintaining and repairing your engine. It includes detailed step-by-step repair procedures, advanced troubleshooting guides, and extensive technical specifications. Hundreds of illustrations, diagrams, and photographs are integrated throughout the manual to clarify complex procedures. Safety guidelines, notes, cautions, and warnings are clearly marked to ensure safe and effective maintenance. This English-language manual is designed to assist owners, technicians, and mechanics in keeping their engines in optimal condition.