Engine Information and Specifications

  •  25

    Engine Details

    Pound for pound, it’s hard to beat the capabilities of the 25hp SeaPro outboard. Light and efficient, it does more with less, delivering the power, speed and acceleration you need to keep operations running on time with exceptional fuel efficiency. For commercial fishing vessels and commercial workboats.

    Specifications - 25

    HP / kW
    • 25 / 18.4
    Engine type
    • Inline 3
    Displacement (CID/CC)
    • 30.5 cu in (500cc)
    Full throttle RPM
    • 5400-5800
    Fuel induction system
    • 2 valve single overhead cam (SOHC)
    Recommended fuel
    • 87 octane / up to 10% ethanol
    Recommended oil
    • 25W-40 Synthetic Blend
    • Mercury FC-W 10W-30 4-Stroke Marine Oil
    Engine protection operator warning system
    • Low oil pressure
    • Over-rev
    • Overheat
    Compatible with SmartCraft digital technology
    • Yes
    • Electric
    • Manual
Command Thrust Gearcase

Command Thrust Gearcase

The 60 and 40hp SeaPro engines come standard with the Command Thrust gearcase.  Its larger torpedo, combined with a bigger-diameter prop, can lift a heavy boat onto plane more easily and hold it there at lower speeds without impacting top speed.

Corrosion Resistance

Corrosion Resistance

Mercury’s proprietary formula – XK360, is an extremely low copper content aluminium alloy, which leads the industry in corrosion resistance. This makes costly corrosion failures and high labor bills a thing of the past. Most competitors use alloys with 2% to 4% copper content which will corrode faster than our MercAlloy, XK360 or A356 alloys.

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 SeaPro over a TwoStroke!

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

Mercury SmartCraft®

Mercury SmartCraft®

SmartCraft compatibility for 25hp and higher SeaPro outboards makes every job easier thanks to intelligent digital gauges, touchscreen VesselView® displays and advanced technologies such as Troll Control and Active Trim, which help you maintain engine speed and optimize performance.