Mercury 25 HP EFI Fourstroke Jet -Mercury jet-drive outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate. Because there's no lower unit extending below the hull, the jet drive permits passage over obstacles that would restrict access to a propeller-driven outboard boat.

HP / kW
  • 25 / 18.4
Engine type
  • Inline 3
Displacement (CID/CC)
  • 32.1 / 526
Full throttle RPM
  • 5000-5500
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
Dry weight *Lightest model available
  • 186 lbs / 84 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)
Gearcase options
  • Jet Drive
Trim system
  • Gas assist
  • Power Trim
Color
  • Phantom Black