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Grove Harbour Marine
2017 Mercury FourStroke 150 HP
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Stronger. Lighter. More Durable.

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

Standard Features
  • Phantom Black
  • 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.
  • 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.
  • 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.
  • 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.
  • Repower Financing.
    With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. You can also choose to finance rigging, gauges, controls and even labor. Mercury Repower Financing offers low rates and low monthly payments to fit a boater's budget.
Engine Specs
Engine Type8-valve single overhead cam (SOHC)
Inline 4
Bore & Stroke (in/mm)4.0 x 3.6" / 102 x 92 mm
Fuel SystemElectronic Fuel Injection (EFI)
Fuel Induction SystemComputer Controlled Multi-Port Electronic Fuel Injection (EFI)
Lubrication SystemWet sump
Cooling SystemWater-cooled with thermostat
Full Throttle RPM Range5000-5800
Ignition SystemSmartCraft ECM 70 Digital Inductive
StartingElectric (turn-key)
Smart Start Electric
Gear ShiftF-N-R
SteeringBig Tiller Compatible
Dual cable mechanical
Electro-Hydraulic Power Steering Optional on Duals
Hydraulic power steering
Oil Capacity6.3 qts / 6.0l
Trim SystemPower Tilt
Power Trim
Recommended OilMercury FourStroke Oil 10W-30
Counter RotationAvailable
CARB Star Rating3
Exhaust SystemThrough prop
Gearcase Ratio1.92:1
Gearcase OptionsStandard
Maximum Trim Range22° (-6° to 16°)
HP / kW150 / 110
Displacement (L)3.0
Recommended FuelUnleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Engine Protection Operator Warning SystemSmartCraft Engine Guardian
Compatible with Smartcraft Digital TechnologyYes
Air Induction SystemPerformance-Tuned Scroll Intake Manifold
Shaft Length20" / 508 mm
25" / 635 mm
ControlsMechanical throttle & shift
Alternator amp / Watt60 amp / 756 watt (Belt-Driven)
Maximum Tilt Range73° (-6° to 67°)
Dry Weight * Lightest model available455 lbs / 206 kg