Mercury SeaPro 90HP

Reach the Next Level

The SeaPro™ mid-range outboards take working to the next level—uncommonly powerful, uniquely compact, uncompromisingly reliable and unbelievably fuel-efficient. To maximise durability, upper mounts are twice as stiff as recreational models. The compact size of these mid-range outboards lets you refit older boats with more horsepower enabling them to perform better than ever with the latest technology. They're the engines with the toughness and durability you need to get the job done.

Engine Details

The engine built for you to depend on, offering trouble-free, low-maintenance performance in the harshest working environments. For commercial fishing vessels, commercial workboats and law-enforcement boats.
HP / kW
  • 90/67
Engine type
  • 8-valve single overhead cam (SOHC)
  • Inline 4
Displacement (L)
  • 2.1
Full throttle RPM
  • 5000-5500
Fuel induction system
  • Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
Alternator amp / Watt
  • 35 amp / 441 watt with water-cooled voltage regulator
Recommended fuel
  • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Engine protection operator warning system
  • SmartCraft Engine Guardian
Compatible with SmartCraft digital technology
  • Yes
Starting
  • Smart Start Electric
Details
Controls
  • Mechanical throttle & shift
Steering
  • Big Tiller
  • Dual cable mechanical
  • Hydraulic
Shaft length
  • 20" / 508 mm
  • 25" / 635 mm
Gearcase ratio
  • 2.38:1
Dry weight *Lightest model available
  • 165
CARB star rating
  • 3
Bore and stroke
  • 3.5 x 3.2 /90 x 81
Ignition
  • SmartCraft ECM 70 Digital Inductive
Fuel system
  • Electronic Fuel Injection (EFI)
Cooling system
  • Water-cooled with thermostat
Gear shift
  • F-N-R
Trim system
  • Power Tilt
  • Power Trim
Exhaust system
  • Through prop
Shallow water trim range (degrees)
  • 20
Color
  • Phantom Black
Lubrication system
  • Wet sump
Oil Capacity
  • 5.5 qts / 5.2 l
Maximum Trim Range
  • 22° (-6° to 16°)
Maximum Tilt Range
  • 70° (-6° to 64°)