Skip to main content

FourStroke
4-6 hp

Power Tender and Skiffs. Effortlessly.

26 kilo of agile performance.

  • Engine type 1 cylinder
  • Full throttle RPM 5000-6000
  • Steering Tiller
  • Dry weight *Lightest model available 25 kg

The specifications displayed here may not be indicative of the entire engine family; click on the “See All Models and Specs” link to view the specs in detail.

See All Models and Specs

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

Lightweight.

Lightweight.

Weighing just 17 and 26 Kilograms, respectively, our 2.5 - 3.5hp and 4 - 6hp FourStroke outboards are easy to lift and carry.

Generate Power.

Generate Power.

Convenience and performance you can count on. 4 amp alternator to charge a battery: exhaust relief holes and 6" prop for improved handling when reversing heavy boats; even an added rectifier to power small external lights. A 5hp FourStroke that powers your boat.

Shallow Water.

Shallow Water.

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

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.

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.

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
    • Unleaded 90RON minimum
    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
    • 25 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
  • 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
    • Unleaded 90RON minimum
    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
    • 25" / 635 mm
    Gearcase ratio
    • 2.15:1
    Dry weight *Lightest model available
    • 25 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
  • 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)
    Alternator amp / Watt
    • 4 amp / 50 watt lighting and charging
    Recommended fuel
    • Unleaded 90RON minimum
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    Starting
    • Manual
    Steering
    • Tiller
    Shaft length
    • 20" / 508 mm
    Gearcase ratio
    • 2.15:1
    Dry weight *Lightest model available
    • 25 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
  • 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
    • Unleaded 90RON minimum
    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
    • 25 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

Documents

Scroll to Top