Engine Information and Specifications

  •  300

    Engine Details

    Lighter than its competition yet built to withstand the rigours of saltwater operation. For go-fast boats and commercial offshore operations that operate in rough seas or need more speed. Great for deck, inflatable rigid hull, inshore fishing, multi-species fishing, offshore fishing and runabout cuddy boats and tritoons.

    Specifications - 300

    HP / kW
    • 300 / 224
    Engine type
    • V8
    • Advanced MidSection (AMS)
    Displacement (CID/CC)
    • 279 CID
    Displacement (L)
    • 4.6L
    Cylinder Configuration
    • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
    Full throttle RPM
    • 5200-6000
    Air induction
    • Performance-Tuned Long-Runner Intake Manifold
    Fuel induction system
    • Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
    Alternator amp / Watt
    • 115-amp (1449 Watt) with Idle Charge
All-new 400hp Verado  outboard engine

All-new 400hp Verado outboard engine

Mercury Marine has announced the launch of the 400hp Verado outboard engine, the company’s highest horsepower Verado branded outboard engine in its portfolio. Since the launch of the 350hp Verado and the Mercury Racing 400R four years ago, consumers have been requesting a higher horsepower Verado engine, and today, boaters around the world will have the opportunity to repower thanks to this extension of Mercury’s L6SC Verado platform.

Looking for performance data?

Looking for performance data?

If you’re looking at Verado outboards, you expect your engines to provide the finest, most enjoyable boating experience possible. Click HERE to access information on comfort, control, reliability, quiet operation, awesome performance and more from the new Verado motors.

Adaptive Speed Control

Adaptive Speed Control

Whether you’re heading up a swell or into a tight turn, Adaptive Speed Control on V8 Verado outboards automatically maintains the set rpm even as load or conditions change. That means you make far fewer throttle adjustments.


Making Boating Easier

Available Active Trim makes boating easier and more enjoyable by automatically trimming your engines and simplifying boat operation while improving engine performance and decreasing fuel costs.

Save Fuel

Save Fuel

Verado V8 outboards deliver superior fuel economy at cruising speed and wide-open throttle. Advanced Range Optimization (ARO) calibration precisely adjusts the fuel mixture and delivers the best possible efficiency at any speed. Verado V8 outboards are calibrated to deliver full performance on 87-octane fuel.

Joystick Piloting for Outboards

Joystick Piloting for Outboards

Full 360-degree control. Right at your fingertips. Joystick Piloting for Outboards allows you to move sideways, diagonally or spin the boat on its own axis. Dock in close quarters without being concerned about wind or current. Easily load the boat on a trailer – using only your fingertips. See How Easy It Can Be



Take a deeper dive into what makes Mercury outboards stand apart with detailed information on each motor and the features that make them unique.