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.

Technical specifications:
HP / kW :150 / 110
Engine type: Inline 4
Displacement (L): 3.0
Full throttle RPM: 5000-5800
Fuel induction system: Computer controlled Sequential Multi-Port Electronic Fuel Injection (EFI)
Alternator amp / Watt:60 amp / 756 watt (Belt-Driven)
Recommended fuel: Unleaded 90RON minimum
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)
Steering:
Big Tiller Compatible:Electro-hydraulic power steering optional
Hydraulic power steering:Remote
Shaft length: 20″ / 508 mm25″ / 635 mm
Gearcase ratio: 1.92:1
Dry weight *Lightest model available: 206 kg
Bore and 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 trim and tilt with SmartCraft programmable tilt
Counter rotation: Available
Color :Phantom Black