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FourStroke 150 HP

Stronger. Lighter. More Durable.

Massive displacement and the lightest 150 hp four-stroke in its class

  • Engine type 8-valve single overhead cam (SOHC), Inline 4
  • Displacement (L) 3.0
  • Full throttle RPM 5000-5800
  • Steering Big Tiller Compatible, Dual cable mechanical, Electro-Hydraulic Power Steering Optional on Duals, Hydraulic power steering
  • Dry weight *Lightest model available 455 lbs / 206 kg

Key Features

Performance, Durability, Efficiency.

 

Making 150 horsepower is easy for this 3.0-liter, four-cylinder, single-overhead-cam engine. Its generous displacement lets it churn out power without breaking a sweat. You get exceptional durability and long-term peace of mind.

Compact and Versatile.

 

It’s the lightest 150hp four-stroke outboard on the market. Smart design makes the 150hp Mercury FourStroke nearly 20 pounds lighter than its closest four-stroke competitor, and less than a battery weight heavier than a two-stroke. Potential uses for this engine are endless, including bay boats, boats with poling platforms and pontoons with swim platforms.

Propped to Perform.

 

The Mercury Enertia® propeller is the perfect complement to the 150 FourStroke. Designed specifically for large four-stroke outboards with a revolutionary low-diameter/high-blade-area design and cast with the Mercury proprietary X7® propeller alloy, Enertia delivers phenomenal acceleration, top speed and durability.

Easy to Maintain.

 

Rather do it yourself? The no-spill oil-change system, an easy-access fuel filter and a lifetime maintenance-free valve train make the Mercury 150 FourStroke the easiest-to-maintain 150hp four-stroke on the market. Scan a QR code under the cowl to link with step-by-step video demonstrations.

Perfect for Repower.

 

The compact, lightweight design of the Mercury® 150hp FourStroke engine fits most transoms, including those with narrow engine wells and tight motor spacing. Rig it with mechanical or hydraulic steering, mechanical control and cable systems, and a full complement of analog or SmartCraft® gauges.

  • Category:
  • HP / kW:
    150 / 110
  • Engine Type:
    8-valve single overhead cam (SOHC) Inline 4
  • Displacement (L):
    3.0
  • Full Throttle RPM:
    5000-5800
  • Air Induction:
    Performance-Tuned Scroll Intake Manifold
  • Fuel Induction System:
    Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
  • Alternator amp / Watt:
    60 amp / 756 watt (Belt-Driven)
  • Recommended Fuel:
    Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
  • Recommended Oil:
    Mercury FourStroke Oil 10W-30
  • Engine Protection Operator Warning System:
    SmartCraft Engine Guardian
  • Compatible with SmartCraft Digital Technology:
    Yes
  • Starting:
    Electric (turn-key) - Smart Start Electric
  • Controls:
    Mechanical throttle & shift
  • Steering:
    Big Tiller Compatible, Dual cable mechanical, Electro-Hydraulic Power Steering Optional on Duals, or Hydraulic power steering
  • Shaft Length:
    20" / 508 mm or 25" / 635 mm
  • Gearcase Ratio:
    1.92:1
  • Dry Weight *Lightest Model Available:
    455 lbs / 206 kg
  • CARB Star Rating:
    3
  • Bore & Stroke:
    4.0 x 3.6" / 102 x 92 mm
  • Ignition:
    SmartCraft ECM 70 Digital Inductive
  • Fuel System:
    Electronic Fuel Injection (EFI)
  • Cooling System:
    Water-cooled with thermostat
  • Gear Shift:
    F-N-R
  • Gearcase Options:
    Standard
  • Trim System:
    Power Tilt, Power Trim
  • Exhaust System:
    Through prop
  • Counter Rotation:
    Available
  • Color:
    Phantom Black
  • Lubrication System:
    Wet sump
  • Oil Capacity:
    6.3 qts / 6.0l
  • Maximum Trim Range:
    22° (-6° to 16°)
  • Maximum Tilt Range:
    73° (-6° to 67°)