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Mercury Outboard 25 EFI

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.

SKU: 25 EFI Category:


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
/Sensor failure
Starting: Electric (turn-key)
or Manual
Steering: Remote
or Tiller
Shaft length: 15″ / 381 mm
& 20″ / 508 mm
Gearcase ratio: 1.92:1
Dry weight *Lightest model available: 157 lbs / 71 kg
Emissions 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)
Remote fuel tank standard (gal / L): 6.6 / 25
Color: Phantom Black

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