This workshop service manual covers the Mercury Mariner outboard motor, produced between 2001 and 2006. This model features a 4-stroke, inline 4-cylinder engine with Electronic Fuel Injection (EFI) and delivers 115 horsepower. Designed for reliable performance, the Mariner outboard is engineered to provide efficient and dependable operation for a variety of marine applications. Its robust construction and proven technology ensure a high standard of quality for boaters. This comprehensive manual provides essential information for the maintenance, repair, and servicing of your Mercury Mariner outboard. It details critical procedures, technical specifications, and troubleshooting guidance. By following the instructions within this guide, owners and technicians can effectively perform routine maintenance, address potential issues, and ensure the longevity and optimal performance of the engine. The manual covers engine specifications, transmission details, and scheduled maintenance intervals.