This manual covers the Mercury Mariner 55 SEAPRO outboard motor, designed for reliable performance. This engine family is engineered for demanding marine applications, providing 55 horsepower to power your vessel. Its robust construction and water-cooled system ensure durability and efficient operation across various conditions. This Service Repair Manual in English provides comprehensive guidance for maintaining and repairing your Mercury Mariner 55 SEAPRO. It details essential procedures, technical specifications, and system information, including fuel type and cooling system details. This resource is intended for owners and technicians to ensure optimal performance and longevity of the outboard motor.