This document pertains to the Mercury Mariner 75 HP Sea Pro outboard engine. Designed for marine applications, this water-cooled engine delivers 75 horsepower and features an outboard drive with forward, neutral, and reverse gears. While specific model years and generations are not detailed, the engineering of Mercury engines is recognized for its robust construction and reliable performance, making it a dependable choice for various boating needs. This workshop service manual provides comprehensive guidance for the maintenance and repair of the Mercury Mariner 75 HP Sea Pro. It covers essential operational procedures, technical specifications, and troubleshooting information necessary for optimal engine performance and longevity. Owners, technicians, and mechanics will find detailed instructions and diagrams to assist with routine servicing, component replacement, and system diagnostics, ensuring the engine remains in peak condition.