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FourStroke
25-30 hp

A Three-cylinder Performer

Crisp handling to keep you moving forward

  • Engine type Inline 3
  • Full throttle RPM 5500 - 6000
  • Steering Big Tiller, Remote
  • Dry weight *Lightest model available 98 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

Great acceleration / more torque.

Great acceleration / more torque.

Compact but powerful, Mercury® 15 - 30hp FourStroke outboards feature extra displacement and outstanding low-end torque that put a boat smartly on plane.

Electrical Support.

Electrical Support.

A high-output alternator keeps batteries charged and fishing electronics humming.

Dependable starts and performance.

Dependable starts and performance.

Battery-free Electronic Fuel Injection (EFI) on Mercury 25 - 30hp FourStroke models delivers consistently easy starting, crisp throttle response, increased fuel economy and outstanding overall performance.

The Mercury-exclusive Primer and Fast Idle systems start our 15 - 20hp FourStrokes fast and easy – hot or cold – and aren’t affected by variable fuel quality.

Specifications

FourStroke: 25-30 hp

  • HP / kW
    • 30 / 22
    Engine type
    • Inline 3
    Displacement (CID/CC)
    • 747
    Full throttle RPM
    • 5500 - 6000
    Alternator amp / Watt
    • 18 amp / 226 watt
    Recommended fuel
    • Unleaded 90RON minimum
    Starting
    • Electric
    Steering
    • Big Tiller
    • Remote
    Shaft length
    • 20" / 508 mm
    Gearcase ratio
    • 2.00:1
    Dry weight *Lightest model available
    • 98 kg
    Gear shift
    • F-N-R
    Gearcase options
    • Command Thrust
    Print Compare With Other Products
  • HP / kW
    • 30 / 22.4
    Engine type
    • Inline 3
    Displacement (CID/CC)
    • 32.1 / 526
    Full throttle RPM
    • 5250-6250
    Fuel induction system
    • 2 valves per cylinder, single overhead cam (SOHC)
    Alternator amp / Watt
    • 15 amp / 186 watt
    Recommended fuel
    • Unleaded 90RON minimum
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    • Overheat
    • Sensor failure
    Starting
    • Electric (turn-key)
    • Manual
    Steering
    • Remote
    • Tiller
    Shaft length
    • 15" / 381 mm
    • 20" / 508 mm
    Gearcase ratio
    • 1.92:1
    Dry weight *Lightest model available
    • 78 kg
    CARB star rating
    • 3
    Bore and stroke
    • 2.40 x 2.36" / 61 x 60 mm
    Ignition
    • CDI w/electronic spark advance
    Fuel system
    • Electronic Fuel Injection (EFI)
    Cooling system
    • Water-cooled with thermostat
    Gear shift
    • F-N-R
    Gearcase options
    • Standard
    Trim system
    • Gas assist
    • Power Trim
    Exhaust system
    • Through prop
    Shallow water trim range (degrees)
    • 16
    Remote fuel tank standard (gal / L)
    • 6.6 / 25
    Color
    • Phantom Black
    Print Compare With Other Products
  • HP / kW
    • 25 / 18.6
    Engine type
    • Inline 3
    Displacement (CID/CC)
    • 32.1 / 526
    Full throttle RPM
    • 5000-6000
    Fuel induction system
    • 2 valves per cylinder, single overhead cam (SOHC)
    Alternator amp / Watt
    • 15 amp / 186 watt
    Recommended fuel
    • Unleaded 90RON minimum
    Recommended oil
    • Mercury FourStroke Oil 10W-30
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    • Overheat
    • Sensor failure
    Starting
    • Electric (turn-key)
    • Manual
    Steering
    • Remote
    • Tiller
    Shaft length
    • 15" / 381 mm
    • 20" / 508 mm
    Gearcase ratio
    • 1.92:1
    Dry weight *Lightest model available
    • 71 kg
    CARB star rating
    • 3
    Bore and stroke
    • 2.40 x 2.36" / 61 x 60 mm
    Ignition
    • CDI w/electronic spark advance
    Fuel system
    • Electronic Fuel Injection (EFI)
    Cooling system
    • Water-cooled with thermostat
    Gear shift
    • F-N-R
    Gearcase options
    • Standard
    Trim system
    • Manual
    • Power Trim
    Exhaust system
    • Through prop
    Shallow water trim range (degrees)
    • 16
    Remote fuel tank standard (gal / L)
    • 6.6 / 25
    Color
    • Phantom Black
    Print Compare With Other Products

Performance Tests

Read the reviews.

Mercury engineering reports and performance data. All available on-line for your review.

BHB - Boat House Bulletin Review
Test Date Engine Boat Prop Type
11/2013 25 hp EFI FourStroke Tracker - Pro Guide V-16 SC Black Max® BHB -
11/2013 25 hp EFI FourStroke SunTracker - Party Barge 22 DLX Black Max® BHB -
11/2013 25 hp EFI FourStroke SunTracker - Party Barge 20 DLX Black Max® BHB -
11/2013 25 hp EFI FourStroke Sun Tracker - Fishin Barge 24 Black Max® BHB -
11/2013 25 hp EFI FourStroke Sun Tracker - Fishin Barge 24 Black Max® BHB -
11/2013 25 hp EFI FourStroke Sun Tracker - Bass Buggy 18 Black Max® BHB -
11/2013 25 hp EFI FourStroke Tracker - Pro 170 Black Max® BHB -
11/2013 25 hp EFI FourStroke Tracker - Super Guide V-16 SC Black Max® BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Tracker - Pro Guide V-16 SC
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: SunTracker - Party Barge 22 DLX
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: SunTracker - Party Barge 20 DLX
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Sun Tracker - Fishin Barge 24
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Sun Tracker - Fishin Barge 24
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Sun Tracker - Bass Buggy 18
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Tracker - Pro 170
Prop: Black Max®
Type: BHB -
Test Date: 11/2013
Engine: 25 hp EFI FourStroke
Boat: Tracker - Super Guide V-16 SC
Prop: Black Max®
Type: BHB -

See All Performance Tests

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