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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 5250-6250
  • Steering Remote, Tiller
  • Dry weight *Lightest model available 172 lbs / 78 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

Repower Revolution

Repower Revolution

Join the Bold!

For a limited time, repower your current boat with a new Mercury 30hp FourStroke outboard and choose between two great offers: a factory-direct rebate of up to $1,000 OR ZERO down, ZERO interest, and ZERO payments for six months financing. Click here for details

Repower Financing.

Repower Financing.

With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. You can also choose to finance rigging, gauges, controls and even labor. Mercury Repower Financing offers low rates and low monthly payments to fit a boater’s budget.

Click here for more information and get the performance you want!

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.

Specifications

FourStroke: 25-30 hp

  • 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
    • 87% octane / up to 10% ethanol
    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
    • 172 lbs / 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
    • 87% octane / up to 10% ethanol
    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
    • 157 lbs / 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

Documents

Buy the Books
Buy the Books

You can order all available Mercury literature online or through any authorized Mercury dealer. Please have your outboard or sterndrive serial number before placing the order.

  • Operation, Maintenance, and Warranty Manuals
  • Parts Manual
  • Service Manual

Purchase a Manual

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