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 quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.
Datasheet
25 EFI
20 EFI
15 EFI
9.9
8
6
5 SAIL POWER
5 PROPANE SAIL POWER
5 Propane
5
4
3.5
2.5
ENGINE DETAILS
Delivers consistent, easy starting, crisp throttle response, increased fuel economy, and outstanding overall performance. Great for aluminum tiller, aluminum console, jon, utility, and fish & ski boats.
SPECIFICATIONS – 25 EFI
HP / kW
25 / 18.6
Engine type
Inline 3
Displacement (CID/CC)
32.1 / 526
Full throttle RPM
5000-6000
Fuel induction system
2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
15 amp / 186 watt
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Overheat
Sensor failure
Starting
Electric (turn-key)
Manual
Steering
Remote
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
1.92:1
Dry weight *Lightest model available
157 lbs / 71 kg
CARB star rating
3
Bore and stroke
2.40 x 2.36″ / 61 x 60 mm
Ignition
CDI w/electronic spark advance
Fuel system
Electronic Fuel Injection (EFI)
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim system
Manual
Power Trim
Exhaust system
Through prop
Shallow water trim range (degrees)
16
Remote fuel tank standard (gal / L)
6.6 / 25
Color
Phantom Black
ENGINE DETAILS
Ultra-lightweight (just 99 pounds) and reliable, with little vibration. Innovative tiller lets you lock the tiller at 73 degrees – great for fishing and trailering. Perfect for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 20 EFI
HP / kW
20 / 14.7
Engine type
Inline 2
Displacement (CID/CC)
20.3 / 333
Full throttle RPM
5700 – 6200
Fuel induction system
Single Overhead Cam
Alternator amp / Watt
12/145 electric
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
25W-40 Synthetic Blend
Mercury FC-W 10W-30 4-Stroke Marine Oil
Engine protection operator warning system
Low oil pressure
Low water pressure
Over-rev
Overheat
Sensor failure
Starting
Electric
Manual
Steering
Remote
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
99 lbs / 45 kg
CARB star rating
3
Bore and stroke
2.40 x 2.24″ / 61 x 57 mm
Ignition
CDI w/electronic spark advance
Fuel system
Electronic Fuel Injection (EFI)
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim system
Manual
Power Tilt
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Remote fuel tank (optional)
Yes
Remote fuel tank standard (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Low weight and awesome torque get your boat on plane quicker and provide best-in-class acceleration to complement best-in-class top speed. A perfect match for aluminum tiller, soft-hull inflatable, jon / utlity, or sail boats.
SPECIFICATIONS – 15 EFI
HP / kW
15 / 11.1
Engine type
Inline 2
Displacement (CID/CC)
20.3 / 333
Full throttle RPM
5700 – 6200
Fuel induction system
2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
12/145 electric
Recommended fuel
87 octane compatible (up to 10% ethanol)
Recommended oil
25W-40 Synthetic Blend
Mercury FC-W 10W-30 4-Stroke Marine Oil
Engine protection operator warning system
Low oil pressure
Over-rev
Overheat
Sensor failure
Starting
Electric
Manual
Steering
Remote
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
99 lbs / 45 kg
CARB star rating
3
Bore and stroke
2.40 x 2.24″ / 61 x 57 mm
Ignition
CDI w/electronic spark advance
Fuel system
Electronic Fuel Injection (EFI)
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim system
Manual
Power Tilt
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Remote fuel tank (optional)
Yes
Remote fuel tank standard (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Built to deliver the type of power, thrust, and control that wider, heavier boats require. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 9.9
HP / kW
9.9 / 7.3
Engine type
Inline 2
Displacement (CID/CC)
12.8 / 208
Full throttle RPM
5000-6000
Fuel induction system
2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
6 amp / 76 watt
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Electric
Manual
Steering
Remote
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
25″ / 635 mm (CT model)
Gearcase ratio
2.08:1 or 2.42:1 (CT model)
Dry weight *Lightest model available
84 lbs / 38 kg
CARB star rating
3
Bore and stroke
2.16 x 1.73″ / 55 x 44 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Command Thrust (CT)
Standard
Trim system
Power Tilt (CT model)
Trim positions
Ratcheting
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Remote fuel tank standard (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Enhancements include simplified starting procedure, faster warmup, and better idle run quality. Lightweight: just 84 pounds. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 8
HP / kW
8 / 5.9
Engine type
Inline 2
Displacement (CID/CC)
12.8 / 208
Full throttle RPM
5000-6000
Fuel induction system
2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
6 amp / 76 watt
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Electric
Manual
Steering
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.08:1
Dry weight *Lightest model available
84 lbs / 38 kg
CARB star rating
3
Bore and stroke
2.16 x 1.73″ / 55 x 44 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim positions
Ratcheting
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Remote fuel tank standard (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Feature integral fuel tanks with an external fuel-shutoff valve. For extended range, they can also be connected to a remote fuel tank. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 6
HP / kW
6 / 4.4
Engine type
1 cylinder
Displacement (CID/CC)
7.5 / 123
Full throttle RPM
5000-6000
Fuel induction system
2-valve pushrod (overhead valve)
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
57 lbs / 26 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
0.3 / 1.1
Optional fuel tank (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Engineered to meet the unique needs of sailboat enthusiasts. Also great for aluminum tiller, inflatable soft hull, jon, and utility boats.
SPECIFICATIONS – 5 SAIL POWER
HP / kW
5 / 3.7
Engine type
1 cylinder
Displacement (CID/CC)
7.5 / 123
Full throttle RPM
4500-5500
Fuel induction system
2-valve pushrod (overhead valve)
Alternator amp / Watt
4 amp / 50 watt lighting and charging
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
59 lbs / 27 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Sail Power
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
0.3 / 1.1
Optional fuel tank (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Mercury’s all-new 5hp FourStroke Propane outboard provides more convenience and less hassle. Sail Power model is designed for sailboats and features an alternator and more thrust. Ideal for sailboats, but also a good fit for aluminum tiller, inflatable or jon / utility boats.
SPECIFICATIONS – 5 PROPANE SAIL POWER
HP / kW
5 / 3.7
Engine type
1 cylinder
Displacement (CID/CC)
7.5 / 123
Full throttle RPM
5000-6000
Fuel induction system
2-valve pushrod (overhead valve)
Alternator amp / Watt
4 amp / 50 watt lighting and charging
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
20″ / 508 mm
25″ / 635 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
63.1 lbs / 28.6 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Propane Mixer
Propane Tolerance
HD-5 (65% or greater propane)
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Sail Power
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
Not included
Remote fuel tank (optional)
Not included
Color
Phantom Black
ENGINE DETAILS
Mercury’s all-new 5hp FourStroke Propane outboard provides more convenience and less hassle. With a large 123cc displacement, it offers best-in-class power by delivering a true 5 horsepower. Ideal for aluminum tiller, inflatable or jon / utility boats.
SPECIFICATIONS – 5 PROPANE
HP / kW
5 / 3.7
Engine type
1 cylinder
Displacement (CID/CC)
7
Displacement (L)
7.5 / 123
Full throttle RPM
5000-6000
Fuel induction system
2-valve pushrod (overhead valve)
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
59.5 lbs / 21.2 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Propane Mixer
Propane Tolerance
HD-5 (65% or greater propane)
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
Not included
Remote fuel tank (optional)
Not included
ENGINE DETAILS
Multiple trim positions to enhance performance and enable shallow-water operation. Through-prop exhaust makes it extra quiet. Lightweight: just 57 pounds. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 5
HP / kW
5 / 3.7
Engine type
1 cylinder
Displacement (CID/CC)
7.5 / 123
Full throttle RPM
4500-5500
Fuel induction system
2-valve pushrod (overhead valve)
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
15″ / 381 mm
25″ / 635 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
57 lbs / 26 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
0.3 / 1.1
Optional fuel tank (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
This lightweight motor features through-prop exhaust for extra-quiet operation. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 4
HP / kW
4 / 2.9
Engine type
1 cylinder
Displacement (CID/CC)
7.5 / 123
Full throttle RPM
4500-5500
Fuel induction system
2-valve pushrod (overhead valve)
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Low oil pressure
Over-rev
Starting
Manual
Steering
Tiller
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
57 lbs / 26 kg
CARB star rating
3
Bore and stroke
2.32 x 1.77″ / 59 x 45 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N-R
Gearcase options
Standard
Trim positions
6
Exhaust system
Through prop
Shallow water drive
Yes
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
0.3 / 1.1
Optional fuel tank (gal / L)
3.2 / 12
Color
Phantom Black
ENGINE DETAILS
Delivers lightweight, portable power and thrust for exact operation. Perfect for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
SPECIFICATIONS – 3.5
HP / kW
3.5 / 2.6
Engine type
1 cylinder
Displacement (CID/CC)
5.2 / 85
Full throttle RPM
5000-6000
Fuel induction system
2-valve pushrod (overhead valve)
Recommended fuel
87 octane / up to 10% ethanol
Recommended oil
Mercury FourStroke Oil 10W-30
Engine protection operator warning system
Over-rev
Starting
Manual
Steering
Tiller with 360° turning
Shaft length
15″ / 381 mm
20″ / 508 mm
Gearcase ratio
2.15:1
Dry weight *Lightest model available
41 lbs / 18 kg
CARB star rating
3
Bore and stroke
2.16 x 1.42″ / 55 x 36 mm
Ignition
CDI w/electronic spark advance
Fuel system
Carbureted
Cooling system
Water-cooled with thermostat
Gear shift
F-N
Gearcase options
Standard
Trim system
4 position
Trim positions
4
Exhaust system
Above prop
Shallow water trim range (degrees)
16
Integrated fuel tank (gal / L)
0.3 / 1.1
Color
Phantom Black
ENGINE DETAILS
Weighing in at just 38 pounds, this compact, reliable motor is a great choice for aluminum tiller, inflatable soft hull, jon, utility, and sail boats.
