We balanced the powerhead to make it smoother and crafted soft-rubber mounts that isolate vibration and direct it away. Whether you’re fishing in a quiet cove or having a conversation, you’ll enjoy every minute on the water.
FourStroke
FourStroke 25-30hp
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 best-in-class acceleration to go with best-in-class speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.
Featured Videos
Featured Resources
Learn more about how Mercury makes great days on the water possible.
Intuitive, Innovative Features
Exceptionally Smooth and Quiet
Advanced Mercury Tiller
The Mercury tiller adapts to you, not the other way around. You can reverse the grip for left- or right-handled throttling and laterally adjust the tiller angle for better leverage and control.
Easy to Maintain
Spend less time on service and more time on the water with our no-spill oil change system, easy-change gear lube and lifetime maintenance-free valve train.
Available Power Tilt and Trim
Easy to stow, easy to control. Power tilt and trim, available for 25 and 30hp FourStroke outboards, lets you adjust the running attitude with the push of a button. A major advantage for small vessels and heavy loads.
Electronic Fuel Injection (EFI)
Electronic fuel injection (EFI) provides surefire starts in any weather. On manual-start engines, battery-free EFI delivers efficient, reliable performance without a bulky cranking battery.
FourStroke Performance
Speed and Acceleration
FourStroke outboards are optimized for reliable performance and fun in all seasons. The 500cc, single-overhead cam design delivers the fastest speed and acceleration among 3-cylinder, 30hp outboards.
Lightweight & Compact
Pound for pound, these outboards are big performers. They’re the lightest 3-cylinder outboards in their class.
Powerful Alternator
Even at low speeds, the alternator delivers powerful battery-charging output to keep onboard electronics humming. And there are no belts or bearings to maintain.
FourStroke Advantage
Comfort
With a balanced powerhead and sophisticated, vibration-dampening cowl design, Mercury FourStroke outboards deliver an exceptionally smooth and quiet ride at any speed.
Durability
Premium corrosion-preventive technologies and durable components ensure FourStroke outboards can stand up to the most demanding marine environments.
Compact Design
Ideal for new engine setups or repowers, the slender width of a Mercury FourStroke outboard fits most transoms, including those with narrow engine wells and tight motor spacing.
Efficiency
Explore farther and stay out longer thanks to impressive power-to-weight ratios, intelligent fuel systems and optimized fuel injection (on most models) that maximize performance from every drop of fuel.
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.
Repower Your Boat with a New Outboard
It’s simple. When you repower your boat with a new Mercury outboard, you get to keep making memories in a boat you love, while enjoying the reliability, performance and efficiency that a new engine brings.
Warranty & Maintenance
Warranty Coverage
Mercury makes world-class marine products backed by world-class warranties.
Maintenance
At Mercury, we make maintenance easy. Learn more about how to keep your Mercury products performing at their peak.
Get the Latest Mercury News
Sign up for our email list to be among the first to hear the latest Mercury product updates and news.
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.
Adventure Starts at Your Mercury Dealer
Your local Mercury Authorized Dealer is the best place to see and purchase Mercury engines, parts and accessories, and to get expert support when you need it.