This manual covers the Yanmar 3TNM74F, 3TNV74F, and 3TNV80F diesel engines. These engines are known for their robust construction and reliable performance, making them suitable for a wide range of industrial, agricultural, and marine applications. Engineered for efficiency and durability, these liquid-cooled, naturally aspirated three-cylinder engines utilize compression ignition and are designed to meet various emission standards depending on their application and region.

This comprehensive service and repair workshop manual provides detailed information essential for the maintenance and repair of your Yanmar engine. It includes procedures for routine maintenance, troubleshooting common issues, and in-depth technical specifications. By following the guidelines within this manual, owners and technicians can ensure optimal performance, longevity, and safe operation of the engine. Refer to this manual for specific details on oil capacity, service intervals, and filter types.