This manual covers the YANMAR 4TNE94/98/106(T) industrial diesel engines, featuring a Direct Injection System. These engines are engineered for reliability and robust performance in demanding industrial applications. Their design emphasizes efficiency and durability, making them a trusted choice for various operational needs. This comprehensive service and repair manual provides essential information for maintaining and troubleshooting your YANMAR engine. It includes detailed repair instructions, maintenance specifications, and technical data, supported by diagrams and illustrations. Adhering to the guidelines within this manual will help ensure optimal performance and longevity of your engine.