This manual covers the Hino W04C-TI Engine, designed for professional technicians and accessible to do-it-yourself mechanics with basic mechanical and electrical knowledge. It provides comprehensive data for performing repairs and maintenance procedures, ensuring the vehicle's optimal performance and longevity. The Hino W04C-TI Engine is engineered for reliability and efficiency, and this manual serves as a crucial resource for understanding its intricacies. The purpose of this service manual is to guide users through the fundamentals of repairing and maintaining the Hino W04C-TI Engine. It includes step-by-step repair procedures, critical specifications, illustrations, maintenance schedules, and disassembly and assembly instructions. By utilizing the information contained within, owners and technicians can make informed decisions regarding maintenance and repairs, ensuring the vehicle remains in safe and operational condition.