This Service Repair Manual provides comprehensive information for the Mercury Mercruiser Gen III Cool Fuel system, a supplement to manuals #30 and #31. This system is engineered for reliability and performance, supporting various MPI engine displacements including 5.0L, 350 MAG MPI, 6.2L, and 496cid (8.1L) engines. It is designed for Bravo Sterndrive and Inboard applications, representing the most complete service repair manual available for this equipment. This manual serves as an essential resource for owners, mechanics, and technicians, covering critical maintenance procedures, troubleshooting guidance, and detailed technical specifications. Key sections include general information, maintenance, removal and installation of the Gen III Cool Fuel module, fuel system diagnostics and repair, and cooling system diagrams. All pages are printable, ensuring accessibility for on-site reference and repair work.