The Mercury Mariner 150 Magnum III, produced between 1992 and 2000, represents a robust V6 outboard motor designed for reliable performance on the water. This carbureted, water-cooled engine delivers 150 horsepower (112 kW) from its 2.6-liter (158.5 cubic inch) displacement. Engineered with a CDI ignition system and an outboard gearcase, the Mariner 150 Magnum III is built for durability and efficiency, making it a trusted choice for various marine applications. This comprehensive Workshop Service Manual and Repair and Overhaul Manual provides essential information for maintaining and repairing your Mercury Mariner 150 Magnum III. It covers critical procedures, technical specifications, and troubleshooting guidance necessary for optimal engine operation. Owners, mechanics, and technicians will find detailed instructions on lubrication, servicing, and other vital aspects, ensuring the longevity and performance of this powerful outboard motor.