This repair manual covers Mercury Mercruiser V8 5.0L, 5.7L, and 6.3L MPI Inboard Engine Stern Drive Direct and V-Drive models manufactured between 2001 and 2006. These engines are designed for a variety of marine applications, including inboard, stern drive, direct drive, and V-drive configurations, making them suitable for tow sports and general boating. The manual details the engineering and reliability of these powerful gasoline-fueled marine engines, ensuring optimal performance for their intended use. The purpose of this comprehensive repair manual is to provide detailed guidance for the maintenance and repair of your Mercury Mercruiser marine engine. It covers essential areas such as general information, routine maintenance, engine removal and installation, fuel systems, lubrication and cooling, engine specifications, transmission, drive systems, steering, electrical systems, and advanced troubleshooting. This resource is invaluable for owners, mechanics, and technicians seeking to maintain their vessel's engine and ensure its longevity and proper functioning.