FourStroke 115 EFI: The Highest Displacement Engine

Advanced FourStroke power with clean, quiet, fuel-efficient performance.

Mercury FourStrokes have long led the pack in clean, quiet, fuel-efficient outboard power, and now the gap has grown even wider. We combined innovative engineering with advanced reliability features to make our outboards run clean, stay quiet and deliver smooth, responsive performance – all while cutting your fuel and maintenance costs.

Built-in Durability
Every 75 - 115 horsepower Mercury FourStroke is built to deliver long-term reliable performance. Our FULLY FILTERED AIR INTAKE protects internal engine components from potentially damaging dust and sand, while our advanced ANTIDRAINBACK OIL SYSTEM assures instant lubrication upon start-up. In addition, the use of SHARED VERADO COMPONENTS ensures the ultimate in mechanical toughness and reliability.

Superior Corrosion Protection
Mercury FourStrokes deliver powerful saltwater protection by using MORE STAINLESS STEEL COMPONENTS, hard anodizing, engineered polymers and exclusive multistep painting and coating processes. Saltwater maintenance is made easy in the 40 - 115 hp models with the innovative FRESHWATER FLUSHING SYSTEM. And ... only Mercury offers a three-year limited corrosion failure warranty.

Total Integration for Carefree Boating
All 40 - 115 hp Mercury FourStrokes are designed to be SMARTCRAFT COMPATIBLE for the ultimate in easy boating. SmartCraft Integrated Marine Technology brings together all boat and engine functions to provide the information you need, such as current fuel usage or warnings of a potential problem.

Smart Engines Mean More Fun
The ECM (ELECTRONIC CONTROL MODULE), with its advanced microprocessor, is the brain of the Mercury FourStroke engine. It controls engine functions such as idle speed, starting and smooth performance and alerts you to potential problems.

Peace of Mind
ENGINE GUARDIAN uses more than 40 sensors to monitor functions of your engine. If the proactive operator-warning system detects a potential problem - such as overreving, overheating or low oil pressure - Engine Guardian sends out an alert and automatically reduces engine power to prevent damage.