This Service Repair Manual covers the Mercury MerCruiser Bravo & Alpha 4.3L MPI sterndrive models applicable for serial numbers 0M300000 and above. These V6 petrol engines, featuring a 4.3L (262 CID) displacement and Multi-Point Injection (MPI) fuel system, are engineered for reliable performance in various marine applications. The manual details both seawater-cooled and closed-cooled systems, encompassing critical components such as starting, ignition, charging, fuel delivery, cooling, exhaust, and power steering systems. This comprehensive English-language manual provides detailed instructions and high-definition diagrams to assist in the maintenance and repair of your Mercury MerCruiser sterndrive. It covers essential maintenance procedures and troubleshooting guidance, making it an indispensable resource for professional mechanics and DIY enthusiasts alike. The manual is designed for easy navigation with bookmarks for every chapter and is printable for convenient use.