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FourStroke
4-6 hp

Power Tender and Skiffs. Effortlessly.

26kg of agile performance.

See All Models and Specs

Easy to Start.

Easy to Start.

Automatic decompression bleeds off cylinder pressure to reduce the pulling force required to start the engine.

Quiet.

Quiet.

Through-prop exhaust on all Mercury® 4 - 6hp FourStrokes exits underwater for quiet operation.

Shallow Water.

Shallow Water.

Multiple trim positions enhance performance and enable shallow-water operation.

Fueling Options.

Fueling Options.

Mercury® 4, 5 and 6hp FourStrokes feature integral fuel tanks with an external fuel-shutoff valve, as well as a fuel-tank cap on top of the cowl. For extended range, these engines also can be connected to a remote fuel tank placed in the boat.

Lightweight.

Lightweight.

Weighing just 38 and 57 pounds, respectively, our 2.5 - 3.5hp and 4 - 6hp FourStroke outboards are easy to lift and carry.

Specifications

FourStroke: 4-6 hp

  • HP / kW
    • 6 / 4.4
    Engine type
    • 1 cylinder
    Displacement (CID/CC)
    • 7.5 / 123
    Full throttle RPM
    • 5000-6000
    Fuel induction system
    • 2-valve pushrod (overhead valve)
    Recommended fuel
    • 87% octane / up to 10% ethanol
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    Starting
    • Manual
    Steering
    • Tiller
    Shaft length
    • 15" / 381 mm
    • 20" / 508 mm
    Gearcase ratio
    • 2.15:1
    Dry weight *Lightest model available
    • 57 lbs / 26 kg
    CARB star rating
    • 3
    Emissions Star Rating
    • 3
    Bore and stroke
    • 2.32 x 1.77" / 59 x 45 mm
    Ignition
    • CDI w/electronic spark advance
    Fuel system
    • Carbureted
    Cooling system
    • Water-cooled with thermostat
    Gear shift
    • F-N-R
    Gearcase options
    • Standard
    Trim positions
    • 6
    Exhaust system
    • Through prop
    Shallow water drive
    • Yes
    Shallow water trim range (degrees)
    • 16
    Integrated fuel tank (gal / L)
    • 0.3 / 1.1
    Optional fuel tank (gal / L)
    • 3.2 / 12
    Color
    • Phantom Black
    Print Compare With Other Products Request a Quote
  • HP / kW
    • 5 / 3.7
    Engine type
    • 1 cylinder
    Displacement (CID/CC)
    • 7.5 / 123
    Full throttle RPM
    • 4500-5500
    Fuel induction system
    • 2-valve pushrod (overhead valve)
    Recommended fuel
    • 87% octane / up to 10% ethanol
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    Starting
    • Manual
    Steering
    • Tiller
    Shaft length
    • 15" / 381 mm
    • 20" / 508 mm
    Gearcase ratio
    • 2.15:1
    Dry weight *Lightest model available
    • 57 lbs / 26 kg
    CARB star rating
    • 3
    Bore and stroke
    • 2.32 x 1.77" / 59 x 45 mm
    Ignition
    • CDI w/electronic spark advance
    Fuel system
    • Carbureted
    Cooling system
    • Water-cooled with thermostat
    Gear shift
    • F-N-R
    Gearcase options
    • Standard
    Trim positions
    • 6
    Exhaust system
    • Through prop
    Shallow water drive
    • Yes
    Shallow water trim range (degrees)
    • 16
    Integrated fuel tank (gal / L)
    • 0.3 / 1.1
    Optional fuel tank (gal / L)
    • 3.2 / 12
    Color
    • Phantom Black
    Print Compare With Other Products Request a Quote
  • HP / kW
    • 4 / 2.9
    Engine type
    • 1 cylinder
    Displacement (CID/CC)
    • 7.5 / 123
    Full throttle RPM
    • 4500-5500
    Fuel induction system
    • 2-valve pushrod (overhead valve)
    Recommended fuel
    • 87% octane / up to 10% ethanol
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    Starting
    • Manual
    Steering
    • Tiller
    Shaft length
    • 15" / 381 mm
    • 20" / 508 mm
    Gearcase ratio
    • 2.15:1
    Dry weight *Lightest model available
    • 57 lbs / 26 kg
    CARB star rating
    • 3
    Bore and stroke
    • 2.32 x 1.77" / 59 x 45 mm
    Ignition
    • CDI w/electronic spark advance
    Fuel system
    • Carbureted
    Cooling system
    • Water-cooled with thermostat
    Gear shift
    • F-N-R
    Gearcase options
    • Standard
    Trim positions
    • 6
    Exhaust system
    • Through prop
    Shallow water drive
    • Yes
    Shallow water trim range (degrees)
    • 16
    Integrated fuel tank (gal / L)
    • 0.3 / 1.1
    Optional fuel tank (gal / L)
    • 3.2 / 12
    Color
    • Phantom Black
    Print Compare With Other Products Request a Quote
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