Mercury FourStroke 115

Intuitive, innovative features

High-output alternator

A powerful alternator – 60 amps on the 150hp outboard and 35 amps on 75 to 115hp outboards – helps keep batteries charged and your onboard electronics running all day.

Extracharging power

Idle charge battery-management technology on the 150hp engine automatically increases idle rpm to boost alternator output and recharge low batteries. 

CommandThrust gearcase

Available for the 90 and 115hp outboards, the Command Thrust gearcase is designed to turn larger props. It helps get heavy boats on plane more easily and hold them there at lower speeds without impacting the top speed.

Tiller handle

With a range of adjustments and ergonomic controls, the available advanced tiller for 90 to 115hp models or Big Tiller for the 150hp engine 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 capability.

Fourstroke performance data

Smooth & quiet 

Optimised from the cowl to the mounts to minimise noise and vibration, Mercury fourstroke outboards are exceptionally quiet and smooth. The 75 to 115hp engines are quieter and smoother than any competing outboards on the water.

Powerful torque

High-displacement powerheads and lightweight designs combine to deliver instant acceleration and exceptional overall performance.

Lighter by design

The 115 and 150hp fourstroke outboards are the lightest in their class, enhancing fuel efficiency and speed for a wide range of boat types. 

Displacement

Cubic Inches

150hp fourstroke weight

Lightest Available Model*

115hp fourstroke weight

Lightest Available Model*

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

name

FourStroke 115

FourStroke 150

Horse power

115

150

Alternator amp / watt

35 amp / 441 watt with water-cooled voltage regulator

60 amp / 756 watt (Belt-Driven)

Colour

Black

Black / Cold Fusion White / Warm Fusion White

Compatible with SmartCraft digital technology

Yes

Yes

Displacement (L)

2.1L

3.0L

Dry weight *lightest model available

359 lbs / 163 kg; 363 lbs / 165 kg (CT model)

455 lbs / 206 kg

Engine type

Inline 4

Inline 4

HP / kW

115 / 86

150 / 110

Recommended fuel

Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum

Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum