Mercury FourStroke 2.5

Intuitive, innovative features

Electronic FuelInjection (EFI)

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.

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-freeEFI

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.

Easyportability

Simple to install and lightweight, 2.5 to 20hp fourstroke outboards let you bring along the fun wherever it’s needed.

ConvenientMaintenance

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

Speed and acceleration

FourStroke outboards are optimised 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 are 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. There are no belts or bearings to maintain.

FourStrokeAdvantages

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 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.