This service manual covers the Hino W04D W040C-T W04C-TI marine engine. Designed for reliability and performance, this engine is a robust component for marine applications. Its engineering prioritizes durability and efficient operation, making it a trusted choice for various maritime needs. This manual provides comprehensive information to ensure the engine's optimal performance and longevity. The purpose of this manual is to provide detailed guidance for the maintenance, repair, and servicing of the Hino W04D W040C-T W04C-TI marine engine. It includes essential information such as general precautions, disassembly and assembly procedures, maintenance checklists, and troubleshooting guides. Technical specifications, tightening torques, and diagrams for various systems including the fuel, cooling, exhaust, and electrical systems are also covered. This resource is intended for both do-it-yourself owners and professional technicians to facilitate effective vehicle care.