Description
Specs
Standard Features

Description

Mercury FourStrokes have long led the pack in clean, quiet, fuel-efficient outboard power, and now the gap grows even wider. We combined innovative engineering with advanced reliability and features to make our outboards run clean, stay quiet, and deliver smooth, responsive performance – all while cutting your fuel and maintenance costs.

The 25 and 30 horsepower FourStrokes have an industry-first battery-less EFI system for easier starting, smooth running, and improved efficiency. That’s not a misprint – they feature electronic fuel injection with no battery.



Specs

Manufacturer
Mercury
Model Year
2012
Model
FourStroke 25 EFI
MSRP
Request Information

Engine

Engine Type
3 cylinders (in-line)
Horsepower
25 hp (18.6 kW) at prop
Displacement
32.1 ci (526 cc)
Bore x Stroke
2.40 x 2.36 in. (61 x 60 mm)
RPM
5,000 - 6,000
Fuel Induction
2-valves per cylinder, single overhead cam (SOHC), Electronic Fuel Injection (EFI)
Ignition
CDI with electronic spark advance
Starting
Electric (turn-key), manual
Cooling
Water-cooled with thermostat
Exhaust
Through prop

Drivetrain

Gear Ratio
1.92:1
Gear Shift
F-N-R

Electrical

Alternator
15A, 186W

Measurements

Shaft Length
15 or 20 in. (381 or 508 mm)
Weight
157 lbs. (71 kg)

Operational

Steering
Remote, tiller
Trim System
Manual, power trim
Instrumentation
Engine Protection Operator Warning System: Low oil pressure, overheat, over-rev, sensor failure

Standard Features

Consistent Starting
 Mercury FourStroke EFI outboards deliver consistent, easy starts, smooth operation, and reliability. The 25 and 30 hp models are the industry's first batteryless EFI outboards.  
Born To Be Smooth
 All portable and mid-range Mercury FourStrokes feature inline designs for inherently smooth operation.  
Powerful 3-Cylinder Design
 Every 25 and 30 hp Mercury Fourstroke utilize a three-cylinder engine design that delivers better inherent balance than the twin cylinder designs used by competitive outboards. Mercury’s three cylinder approach results in a smoother and quieter user experience.  
Fun At Your Fingertips
 Mercury Fourstrokes are designed with a boat load of user-friendly features, such as our multifunction tiller handle. Available on gas assist or power trim models, this tiller handle gives you easy one-handed operation of shifting, stopping, throttle, tilt and starting. More control equals better maneuverability.  
*MSRP Price, if shown, is Manufacturer's Suggested Retail Price and does not include taxes, dealer vehicle freight, dealer preparation, dealer document charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.
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