This service repair manual provides comprehensive information for the Hino RB145 W04D engine. Designed for both do-it-yourself enthusiasts and experienced mechanics, it details the engineering and reliability of this engine. The manual covers all styles and is intended to assist users in maintaining and repairing their vehicle's engine, ensuring optimal performance and longevity. The scope of this manual is extensive, covering critical areas such as engine identification, general precautions, disassembly and assembly procedures, maintenance checklists, and troubleshooting. It also includes detailed sections on the fuel system, cooling system, exhaust system, electrical system, and specific components like the alternator and fuel filter. With step-by-step instructions, hundreds of photos and illustrations, and precise servicing specifications, this manual is an indispensable resource for anyone needing to service or repair the Hino RB145 W04D engine.