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FourStroke
135-150 hp

Stronger. Lighter. More Durable.

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

See All Models and Specs

Circumnavigating Australia with Mercury 150 FourStrokes.

Circumnavigating Australia with Mercury 150 FourStrokes.

Mark Ratchford is calling it his ‘huge adventure’ which might be an understatement - considering he spent four months on a solo 16,500 km (10,000-mile) circumnavigation of Australia in a 6.5 metre (21-foot) fishing boat powered by twin Mercury 150 FourStroke outboards.

Click here to read about Mark's adventure.

Calculate your fuel savings

Calculate your fuel savings

The Mercury Fuel Savings Calculator will allow you to easily calculate the possible fuel savings of a Mercury FourStroke outboard!

Choose how you use your boat, select the TwoStroke and FourStroke horsepower - and our tool will show your potential fuel savings. If you're looking to upgrade or add more power, you can even choose different FourStroke and TwoStroke horsepower options!

Calculate your fuel savings

Performance, Durability, Efficiency.

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.

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.

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.

“She Fishes” Chloe Laurence picks Mercury FourStroke

“She Fishes” Chloe Laurence picks Mercury FourStroke

Chloe Laurence is having a great time – breaking down stereotypes while doing what she loves.

A talented fisher with numerous tournament wins to her name, Chloe is helping to eliminate the myth that fishing’s just “a bloke’s sport” while encouraging everyone to try throwing in a line.

With a focus on inshore sports fishing as well as game fishing for marlin and tuna, Chloe spends as much time as she can out on the water – propelled by a brand new Mercury 150 FourStroke.

Find out why Chloe chose Mercury.

Outboard Cover - Protection for your 135-150hp FourStroke Outboard

Outboard Cover - Protection for your 135-150hp FourStroke Outboard

Protect your engine from stones, fishing hooks, lures and sinkers, and general wear and tear with these UV-stabilised, water-resistant, premium quality marine-grade covers with breathable mesh venting. A great way to keep your Mercury looking brand-new. Available now from your local Mercury Dealer to fit all new Mercury Outboards from 2-400hp. 

Full covers & combo covers also available.

We've got it covered. 

Specifications

FourStroke: 135-150 hp

  • 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 91 RON 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)
    • Smart Start Electric
    Controls
    • Mechanical throttle & shift
    Steering
    • Big Tiller Compatible
    • Dual cable mechanical
    • Electro-Hydraulic Power Steering Optional on Duals
    • Hydraulic power steering
    Shaft length
    • 20" / 508 mm
    • 25" / 635 mm
    Gearcase ratio
    • 1.92:1
    Dry weight *Lightest model available
    • 455 lbs / 206 kg
    Emissions Star Rating
    • 3
    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 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°)
    Print Compare With Other Products Request a Quote
  • HP / kW
    • 135 / 101
    Engine type
    • 8-valve single overhead cam (SOHC)
    • Inline 4
    Displacement (L)
    • 3.0
    Full throttle RPM
    • 4800-5300
    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 91 RON 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)
    • Smart Start Electric
    Controls
    • Mechanical throttle & shift
    Steering
    • Big Tiller Compatible
    • Dual cable mechanical
    • Electro-Hydraulic Power Steering Optional on Duals
    • Hydraulic power steering
    Shaft length
    • 20" / 508 mm
    • 25" / 635 mm
    Gearcase ratio
    • 1.92:1
    Dry weight *Lightest model available
    • 455 lbs / 206 kg
    Emissions Star Rating
    • 3
    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 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°)
    Print Compare With Other Products Request a Quote
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