Mercury Fourstroke 40 EFI 4 Cylinder

Intuitive, innovative features

High-output alternator

An 18-amp alternator helps keep batteries charged and fishing electronics humming long into the evening bite. 

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. 

CommandThrust 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.

ElectronicFuel 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

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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.

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.

Engine Specifications by Horsepower

Compare Outboard MotorsSelect HorsepowerFourstroke 40 EFI 4 CylinderFourStroke 40 EFI 3-CylinderFourStroke 40 ProFourStroke 40hpFourStroke 50 EFIFourStroke 60 EFI

name

Fourstroke 40 EFI 4 Cylinder

Horse power

40

Alternator amp / watt

18 amp / 226 watt

Colour

-

Compatible with SmartCraft digital technology

Yes

Displacement (L)

-

Dry weight *lightest model available

260 lbs / 118 kg

Engine type

Inline 4

HP / kW

40 / 30

Recommended fuel

-