Mercury 40 HP Command Thrust Fourstroke - 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.

HP / kW
  • 40 / 30
Engine type
  • Inline 4
Displacement (CID/CC)
  • 60.8 / 995
Full throttle RPM
  • 5500-6000
Fuel induction system
  • 2 valves per cylinder, single overhead cam (SOHC)
Alternator amp / Watt
  • 18 amp / 226 watt
Recommended fuel
  • Unleaded 91 RON Minimum
Recommended oil
  • Mercury FourStroke 25W40 Marine Oil
Engine protection operator warning system
  • SmartCraft Engine Guardian
Compatible with SmartCraft digital technology
  • Yes
Starting
  • Electric (turn-key)
Steering
  • Big Tiller Compatible
  • Remote
  • Tiller Kit
Shaft length
  • 20" / 508 mm
Gearcase ratio
  • 2.33:1
Dry weight *Lightest model available
  • 118 kg
Emissions Star Rating
  • 3
Bore and stroke
  • 2.56 x 2.95" / 65 x 75 mm
Ignition
  • ECM 07 Digital Inductive
Fuel system
  • Electronic Fuel Injection (EFI)
Cooling system
  • Water-cooled with thermostat
Gear shift
  • F-N-R
Gearcase options
  • Command Thrust
Trim system
  • Power Trim
Exhaust system
  • Through prop
Shallow water trim range (degrees)
  • 20
Remote fuel tank (optional)
  • Yes
Color
  • Phantom Black

 

Horse Power (hp)
  • 40