Mercury 400hp Verado V10 400XXL

The Mercury 400hp Verado V10 400XXL is engineered for demanding offshore applications where extra-long transoms and heavy hulls require uncompromising power. Its 5.7L naturally aspirated V10 delivers massive torque with smooth, linear acceleration, while the 30” XX-Long shaft ensures proper mounting height and optimal thrust on big boats.

Built around Mercury’s advanced Verado platform, the 400XXL blends raw horsepower with SmartCraft® digital technologies to provide effortless control, quiet operation, and confident performance in rough water.

Features and Performance

• 5.7L V10 Naturally Aspirated Powerhead – Strong torque and responsive acceleration

• 400 Horsepower Output – Ideal for single, twin, or triple offshore installations

• 30” XX-Long Shaft – Designed for high-transom offshore and commercial hulls

• Digital Throttle & Shift (DTS) – Smooth shifting and instant throttle response

• Advanced MidSection (AMS) – Minimizes vibration and reduces engine noise

• Adaptive Speed Control – Maintains RPM through swells, turns, and load changes

• Precision Gearcase – Stable at high speeds with confident low-speed handling

Why You Should Buy It

• Flagship Verado V10 power without supercharging complexity

• Perfect for large offshore boats with extra-long transoms

• Smooth, quiet, and refined for long offshore runs

• Excellent balance of power, reliability, and digital control

• Backed by Mercury Marine with a 3-Year Factory Warranty

If your offshore platform demands maximum naturally aspirated power and a 30” shaft, the 400XXL is built to deliver.

FAQ – Mercury 400hp Verado V10 400XXL

Q1: What boats are best suited for the 400XXL?
Large offshore fishing boats, center consoles, and cruisers with 30” transoms.

Q2: Is the 400 Verado supercharged?
No. It uses a naturally aspirated 5.7L V10, offering strong torque and simpler ownership.

Q3: Is Digital Throttle & Shift standard?
Yes. DTS is included as standard equipment.

Q4: Can the 400XXL be used in multi-engine setups?
Yes. It is commonly used in twin or triple Verado configurations.