An 18-amp alternator helps keep batteries charged and fishing electronics humming long into the evening bite.
FourStroke 40-60hp
Held to a Higher Standard.
There are plenty of good reasons these outboards rule the water. Start with no-worry reliability. More low-end torque for excellent acceleration. Increased fuel economy and outstanding overall performance. Enhanced fuel injection (EFI models) for boosted efficiency. A robust electrical system with a high-output alternator to keep batteries charged and fishing electronics humming. They have everything you need, and nothing you don't.
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Learn more about how Mercury makes great days on the water possible.
Intuitive, innovative features
High-output alternator
Convenient maintenance
We made maintenance easier with features like colour-coded touch points, an easy-access water-separating fuel filter and an oil filter drip tray, which helps you get the job done with less mess.
Command Thrust gearcase
Designed to sit lower in the water and turn larger props, the available Command Thrust gearcase lifts heavy boats on plane more easily and holds them there at lower speeds without impacting top speed.
Tiller handle
With a range of adjustments, ergonomic controls and the flexibility to be set up for left or right-handed operation, the available advanced tiller puts you in complete command of your adventures.
Electronic Fuel Injection (EFI)
From the moment you crank the engine to the moment you drop the throttle, EFI technology responds with instant power. Surefire starting in all weather conditions. Smooth, efficient acceleration. Maximum fun.
Fourstroke performance
Powerful torque
A high-displacement powerhead generates serious low-end torque to easily power boats on plane. More torque requires less work from the engine, for a longer service life.
Quick acceleration
The single-overhead-cam design delivers sporty acceleration and exciting overall performance from midrange through to top speed.
Hard-working muscle
With an available Command Thrust gearcase and ample torque, 40 to 60hp outboards make easy work of moving heavily loaded boats.
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.
Engine Specifications by Horsepower
SmartCraft® The power to do more
SmartCraft® is a full suite of digital technologies, fully integrated and totally coordinated. Gauges, sensors, vessel systems, computer-controlled features – one total package, one high level of control. Make your boating experience easier, safer and a lot more enjoyable.
Time for new power?
Replacing an old outboard can deliver improved performance and reliability, increased fuel economy and better handling for a more enjoyable boating experience. The entire family of fourstroke outboards is lightweight and compact, making those engines perfect for repowering older boats.
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®.