This comprehensive Mercury Mariner 115 HP EFI 4-stroke Factory Service Repair Manual provides you with all the information you need to service and repair your engine. This manual covers models starting with model year 2001 and serial numbers 0T178500. Designed as a user-friendly reference guide for both mechanics and DIY enthusiasts, the manual features clear and detailed explanations of all procedures. You'll find step-by-step instructions for installation, removal, disassembly, assembly, repair, and inspection processes, ensuring a smooth and efficient workflow. Whether you're a seasoned professional or a home mechanic, this manual equips you with the essential knowledge and guidance to handle any repair or maintenance task with confidence.

The Mercury Mariner 115 HP EFI 4-stroke outboard motor is a powerful and reliable engine designed for a variety of boating applications. Part of the Mariner line, known for its affordability and durability, this 115 HP motor is a popular choice for fishing boats, pontoon boats, and smaller runabouts. Its 4-stroke design ensures efficient fuel consumption and minimal emissions, making it an environmentally responsible choice for boating enthusiasts. The EFI (Electronic Fuel Injection) system provides precise fuel delivery and consistent performance across a wide range of operating conditions. The Mariner 115 HP EFI boasts a robust cast-iron powerhead and a corrosion-resistant aluminum lower unit, ensuring long-lasting durability even in saltwater environments.

The engine features a user-friendly design with convenient access to service points for routine maintenance. The compact size and lightweight construction make it easy to handle and install on a variety of boat transoms. The powerhead is equipped with a large-capacity oil sump, allowing for extended service intervals. The Mariner 115 HP EFI 4-stroke is backed by Mercury's extensive dealer network, providing easy access to parts, service, and support. This outboard motor is known for its smooth and quiet operation, making it ideal for fishing, cruising, and other recreational activities. Its reliable performance and user-friendly features have made it a popular choice among boat owners seeking a balance of power, efficiency, and affordability. Whether cruising along a calm lake or navigating challenging waterways, the Mercury Mariner 115 HP EFI 4-stroke delivers dependable performance and a smooth ride for an enjoyable boating experience.