From the moment you crank the engine to the moment you drop the throttle, EFI technology available on 8 and 20hp outboards responds with instant power. Surefire starting in all weather conditions. Smooth, efficient acceleration. Maximum fun.
FourStroke 2.5-20hp
Output far beyond its size
Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.
Intuitive, innovative features
Electronic Fuel Injection (EFI)
Advanced tiller
With a range of adjustments, easy-to-reach controls and the flexibility to be set up for left or right-handed operation (on select models), Mercury tiller handles put you in complete command of your adventures.
Battery-free EFI
Go farther, confidently, with battery-free EFI technology. Included with manual-start 8 and 20hp models, it lets you enjoy the flexibility of portability, without needing to bring along a cranking battery.
Easy portability
Simple to install and lightweight, 2.5 to 20hp fourstroke outboards let you bring along the fun wherever it’s needed.
Convenient Maintenance
We made maintenance easier with features like a no-spill oil change system, easy-out fuel filter and lifetime maintenance-free valve train
Fourstroke performance
Flexible, versatile power
A variety of remote and tiller controls, manual and electric start, and power or manual trim (options vary by horsepower) let you set up your engine to match your boat and favourite on-water activities.
Small but mighty
With their high torque and rugged durability, Mercury portable outboards are ideal for powering a range of johnboats, small aluminium fishing boats and rigid inflatables, as well as for secondary power on sailboats.
Lighter by design
Proprietary alloys and advanced cowl materials allow Mercury fourstroke outboards to deliver heavyweight performance in a lightweight package.
FourStroke Advantages
Corrosion Resistance
Advanced alloys. Durable coatings. Sealed electronics. Easy-to-use freshwater flush system. Fourstroke outboards come packed with premium corrosion-preventive technology that enables them to stand up to the most demanding marine environments.
Superior Control
With a choice of tiller or remote steering and compatibility with advanced SmartCraft® features such as Troll Control and Active Trim, you can optimise your engine for total command of all your adventures.
Go Farther
A host of efficiency-enhancing features such as Advanced Range Optimisation (ARO), a closed-loop fuel system and a hydrodynamic gearcase optimise fuel economy so you can go farther on every tank.
Power and Flexibility
A Mercury 250 or 300hp fourstroke outboard is the answer for fishing, cruising or all-around fun. They are ideal for powering a range of boats and come in four colour options to match your boat and style.
Specifications
Warranty and maintenance
Limited warranty
World-class marine products backed by world-class warranties. We stand behind everything we build, and we go the extra mile to make sure your Mercury experience is the best it can be – on the water and off.
Mercury Product Protection
Mercury Product Protection is an extended service contract for your Mercury engine that covers certain expenses caused by defects in materials and workmanship after the Mercury limited warranty expires.
Maintenance
Whether you keep your outboard at a remote outpost or in your garage, we have made maintenance easier. Our maintenance-free camshaft requires no regular service and no valve leash adjustments. Ever. For the life of the engine. Changing the crankcase and gearcase oil is a snap, too. The oil-filter drip tray (on EFI models) and easy-drain design minimise messes. The gear lube will fully drain from any tilt position. Less hassle leaves more time for fun.
Resources for you
Brochures
Take a deeper dive into what makes Mercury fourstroke outboards stand apart with detailed information on each engine and the features that make them unique.
The best products have the best dealers
When you make the best marine products in the world, you want the best dealers behind them. That is why we ensure that Mercury dealers are the best equipped to sell and service our products. Your Mercury authorised dealer is the place to see and purchase Mercury engines as well as genuine Mercury Precision Parts® and accessories. With thousands of dealers, you can rest assured we are always close by and ready to help you Go Boldly®.