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250-300hp

4.6L V8

For boaters who refuse to compromise, Mercury V8 250 and 300hp Verado® outboards represent the pinnacle of superior outboard design and performance. They deliver exhilarating acceleration and top speed, with the power and reliability to make runs over long distances and choppy water. The Mercury-exclusive Advanced MidSection (AMS) and under-cowl noise management set the standard for smooth, quiet operation, for the ultimate, most satisfying on-water experience.

Intuitive, Innovative Features

Exceptionally Smooth & Quiet

The rugged Advanced MidSection (AMS) mounting system cradles the powerhead to isolate vibration, while expert tuning minimizes engine noise and optimizes the sound quality for a more enjoyable boating experience.

Effortless Operation

Mercury Digital Throttle & Shift (DTS) controls deliver smooth, quiet shifting and instant throttle response, with zero hesitation. Advanced electro-hydraulic steering enhances the driving experience at all speeds, providing complete control and confident handling wherever the water takes you.

Joystick Piloting for Outboards

The industry’s most advanced Joystick Piloting system makes maneuvering in tight spaces as simple as nudging the joystick whichever direction you want the boat to go. The SmartCraft system takes it from there, providing unparalleled low-speed control for easy, confident docking.

Adaptive Speed Control

The Adaptive Speed Control (ASC) feature lets you maintain engine rpm despite changes in load or conditions. Climbing large swells is easier. Cruising at low speeds is smoother. Carving out tight turns is effortless. You just point the bow toward your destination, and Verado takes it from there.

Advanced Sound Control

Choose the sound that moves you with the industry-exclusive Advanced Sound Control feature. It lets you toggle between a whisper-quiet exhaust tone or a throatier growl at startup and idle, for those times you truly want to hear the horsepower.

Engine Information and Specifications

400 350 300 250
Engine Details The inherently balanced in-line six-cylinder engine and our Advanced Mid Section (AMS) with perimeter mounts virtually eliminate vibration in the boat. Perfect for sneaking up on fish or cruising on luxury pontoons. The inherently balanced in-line six-cylinder engine and our Advanced Mid Section (AMS) with perimeter mounts virtually eliminate vibration in the boat. Perfect for sneaking up on fish or cruising on luxury pontoons. 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. The smooth, refined power of a 4.6-liter V-8 powerhead delivers exhilarating acceleration and top speed to run offshore with confidence, with generous displacement and robust design that provide uncompromising durability and reliability. The Mercury exclusive Advanced MidSection (AMS) and under-cowl noise management features set the standard for smooth, quiet marine propulsion
HP / kW 400 / 298 / 350 / 257 / 300 / 224 / 250 / 186 /
Engine type Inline 6 Inline 6 V8 V8
Displacement (L) 2.6L 2.6 4.6L 4.6L
Full throttle RPM 6200-6800 5800-6400 5200-6000 5200-6000
Air induction Supercharged with charge air cooling and electronic boost pressure control Supercharged with charge air cooling and electronic boost pressure control Performance-Tuned Long-Runner Intake Manifold Performance-Tuned Long-Runner Intake Manifold
Fuel induction system Sequential multi-port electronic fuel injection (EFI) Sequential multi-port electronic fuel injection (EFI) Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
Alternator amp / Watt 70 amp / 882 watt (Belt-Driven) 70 amp / 882 watt (Belt-Driven) 115-amp (1449 Watt) with Idle Charge 115-amp (1449 Watt) with Idle Charge
Recommended fuel Unleaded Regular 89 Octane Minimum (R+M)/2 or 93 RON Unleaded 91 Octane or 95 RON for premium performance in all conditions 10% Ethanol Maximum Unleaded Regular 89 Octane Minimum (R+M)/2 or 93 RON Unleaded 91 Octane or 95 RON for premium performance in all conditions 10% Ethanol Maximum Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Recommended oil Mercury FourStroke 25W40 Marine Oil Mercury FourStroke 25W40 Marine Oil NMMA Certified FCW SAE 10W-30 NMMA Certified FCW SAE 10W-30
Engine protection operator warning system SmartCraft Engine Guardian SmartCraft Engine Guardian SmartCraft Engine Guardian SmartCraft Engine Guardian