Description

Mercury 400HP Verado V10 Outboard | Digital Throttle & Shift, Electric Start, 35″ Shaft | 400XXXL

Mercury 400HP Verado V10 400XXXL Outboard

The Mercury 400HP Verado V10 400XXXL Outboard is engineered for boaters who demand exceptional offshore performance, premium comfort, and uncompromising reliability. Powered by Mercury’s revolutionary 5.7L naturally aspirated V10 engine, this high-performance outboard delivers impressive torque, outstanding acceleration, and smooth power delivery for the most demanding marine environments.

Featuring an extended 35-inch XXX-Long shaft, the 400XXXL Verado is specifically designed for larger offshore vessels, multi-engine installations, and applications requiring maximum transom height coverage. Combined with Mercury’s industry-leading Digital Throttle & Shift (DTS), Advanced MidSection (AMS), and SmartCraft® technologies, this outboard provides a boating experience that is powerful, refined, and remarkably easy to control.

Powerful 5.7L V10 Performance

At the heart of the Mercury 400XXXL Verado is a naturally aspirated 5.7-liter V10 powerhead engineered to deliver class-leading performance and durability. The advanced V10 design provides strong low-end torque, rapid acceleration, and smooth power throughout the RPM range.

Performance advantages include:

• 400 horsepower output
• Outstanding hole-shot acceleration
• Strong low-end and mid-range torque
• Smooth power delivery
• Exceptional offshore performance
• Proven Mercury reliability

Whether running offshore, cruising long distances, or powering larger vessels, the V10 Verado delivers confidence and capability.

Digital Throttle & Shift Technology

Mercury SmartCraft® Digital Throttle & Shift (DTS) offers smooth, responsive control and instant engine response.

Benefits include:

• Precise throttle control
• Seamless gear engagement
• Improved docking performance
• Reduced operator fatigue
• Smooth acceleration
• Enhanced vessel handling

The DTS system ensures effortless operation in every boating situation.

Exceptionally Smooth and Quiet Operation

The Advanced MidSection (AMS) mounting system isolates engine vibration and significantly reduces noise levels.

Key benefits include:

• Reduced vibration
• Quieter operation
• Improved passenger comfort
• Smooth cruising experience
• Minimal engine noise
• Refined offshore performance

This advanced design creates one of the quietest and most comfortable boating experiences available.

Adaptive Speed Control

Adaptive Speed Control automatically maintains selected engine RPM as conditions and loads change.

Advantages include:

• Consistent engine performance
• Easier rough-water operation
• Reduced throttle adjustments
• Improved fuel efficiency
• Smoother cruising
• Greater operator comfort

The system continuously adapts to changing conditions for a more enjoyable ride.

Precision Gearcase Engineering

Mercury’s advanced hydrodynamic gearcase maximizes efficiency, stability, and handling.

Features include:

• Reduced drag
• Enhanced fuel efficiency
• Superior high-speed stability
• Strong low-speed control
• Improved propeller grip
• Faster acceleration

The gearcase is optimized to convert V10 power into exceptional on-water performance.

Extended 35-Inch Shaft Configuration

The 35-inch XXX-Long shaft is designed for specialized offshore and high-transom applications.

Benefits include:

• Ideal for larger offshore vessels
• Improved propeller placement
• Enhanced performance in rough seas
• Better water pickup at higher mounting heights
• Increased versatility for custom installations
• Superior offshore capability

This configuration is particularly valuable for larger center consoles and multi-engine offshore boats.

Ideal Applications

The Mercury 400HP Verado 400XXXL is ideal for:

• Large offshore fishing boats
• High-performance center consoles
• Commercial marine vessels
• Luxury offshore cruisers
• Multi-engine installations
• Tournament fishing boats
• Custom offshore applications

Its long-shaft configuration makes it especially suited to demanding offshore environments.

Technical Specifications

Engine Specifications

• Engine Type: Mercury 400XXXL Verado V10 FourStroke
• Horsepower: 400 HP
• Cylinders: V10
• Displacement: 5.7 Liters
• Fuel System: Electronic Fuel Injection (EFI)
• Induction System: Naturally Aspirated Performance-Tuned Intake Manifold
• Full Throttle Range: 5800–6400 RPM

Controls

• Digital Throttle & Shift (DTS)
• Smart Start Electric
• Integrated Electro-Hydraulic Steering

Dimensions

• Shaft Length: 35″ XXX-Long
• Weight: 723 lbs

Standard Features

• Power Trim & Tilt
• Mounting Hardware
• Tool Kit
• Owner’s Manual

Warranty

• Mercury Marine 3-Year Limited Warranty

Why Choose the Mercury 400XXXL Verado?

The Mercury 400HP Verado V10 400XXXL combines advanced V10 power, premium offshore capability, exceptional refinement, and innovative SmartCraft® technologies. Its extended 35-inch shaft configuration makes it an excellent choice for large offshore vessels requiring maximum performance and reliability.

With industry-leading engineering, smooth operation, and impressive power, the Mercury 400XXXL Verado stands among the most capable premium outboards available for serious offshore boating.

Frequently Asked Questions

What shaft length does the 400XXXL use?

This model features a 35-inch XXX-Long shaft designed for larger offshore vessels and specialized installations.

Does the engine include Digital Throttle & Shift?

Yes. Mercury SmartCraft® Digital Throttle & Shift is standard equipment.

What is the engine displacement?

The engine features a 5.7-liter naturally aspirated V10 powerhead.

Is steering included?

Yes. Integrated electro-hydraulic steering is included as part of the Verado platform.

What is the full throttle operating range?

The recommended full throttle range is 5800 to 6400 RPM.

Is a propeller included?

No. Propellers are sold separately and should be selected based on vessel requirements and desired performance characteristics.