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2.5-25hp

Output far beyond its size

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 best-in-class acceleration to go with best-in-class speed. Easy to install and operate, with reliable starting, low vibration and instant throttle response. It's worry-free boating at its best.

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Engine Information and Specifications

Scroll within the table below to view specifications for each engine.

25 EFI 20 EFI 15 EFI 9.9 8 6 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. 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. 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. 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. 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. 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. 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. This lightweight motor features through-prop exhaust for extra-quiet operation. Great for aluminum tiller, inflatable soft hull, jon, utility, and sail boats. Delivers lightweight, portable power and thrust for exact operation. Perfect for aluminum tiller, inflatable soft hull, jon, utility, and sail boats. 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.
HP / kW 25 / 18.6 20 / 14.7 51 / 11.1 9.9 / 7.3 8 / 5.9 6 / 4.4 5 / 3.7 4 / 2.9 3.5 / 2.6 2.5 / 1.9
Engine type Inline 3 Inline 2 Inline 2 Inline 2 Inline 2 1 cylinder 1 cylinder 1 cylinder 1 cylinder 1 cylinder
Displacement (L)
Full throttle RPM 5000-6000 5700 - 6200 5700 - 6200 5000-6000 5000-6000 5000-6000 4500-5500 4500-5500 5000-6000 4500-5500
Air induction
Fuel induction system 2 valves per cylinder, single overhead cam (SOHC) Single Overhead Cam 2 valves per cylinder, single overhead cam (SOHC) 2 valves per cylinder, single overhead cam (SOHC) 2 valves per cylinder, single overhead cam (SOHC) 2-valve pushrod (overhead valve) 2-valve pushrod (overhead valve) 2-valve pushrod (overhead valve) 2-valve pushrod (overhead valve) 2-valve pushrod (overhead valve)
Alternator amp / Watt 15 amp / 186 watt 12/145 electric 12/145 electric 6 amp / 76 watt 6 amp / 76 watt
Recommended fuel 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane compatible (up to 10% ethanol) 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol 87 octane / up to 10% ethanol
Recommended oil Mercury FourStroke Oil 10W-30 25W-40 Synthetic Blend
Mercury FC-W 10W-30 4-Stroke Marine Oil		 25W-40 Synthetic Blend
Mercury FC-W 10W-30 4-Stroke Marine Oil		 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30 Mercury FourStroke Oil 10W-30
Engine protection operator warning system Low oil pressure
Over-rev
Overheat
Sensor failure		 Low oil pressure
Over-rev
Overheat
Sensor failure		 Low oil pressure
Over-rev
Overheat
Sensor failure		 Low oil pressure
Over-rev		 Low oil pressure
Over-rev		 Low oil pressure
Over-rev		 Low oil pressure
Over-rev		 Low oil pressure
Over-rev		 Over-rev Over-rev
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