Mercury 400hp Verado V10 400XXXL

Overview Mercury 400hp Verado V10 400XXXL

The Mercury 400hp Verado V10 400XXXL is purpose-built for extreme offshore applications where standard long, X-Long, or even XX-Long shafts are not enough. Featuring a 35” XXX-Long shaft , this model is ideal for very high-freeboard hulls, offshore catamarans, and specialized commercial or performance boats .

Powered by a 5.7L naturally aspirated V10 , the 400XXXL delivers immense torque with smooth, linear acceleration, paired with SmartCraft® digital technologies for effortless control in rough water.

Features and Performance

• 5.7L V10 Naturally Aspirated Powerhead – Massive torque with predictable, linear delivery
• 400 Horsepower Output – Confident thrust for heavy offshore hulls
• 35” XXX-Long Shaft – Designed for the tallest transoms and extreme offshore platforms
• Digital Throttle & Shift (DTS) – Ultra-smooth shifting and instant throttle response
• Advanced MidSection (AMS) – Dramatically reduces vibration and engine noise
• Adaptive Speed Control – Holds RPM through swells, turns, and changing loads
• Precision Gearcase – Stable at high speed with authoritative low-speed control

Why You Should Buy it

• Longest-shaft Verado V10 400hp available
• Built for extreme offshore and high-transom boats
• Smooth, quiet, and refined for long offshore runs
• Premium digital control and handling confidence
• Backed by Mercury Marine with a 3-Year Factory Warranty

If your offshore platform demands maximum naturally aspirated power and a 35” shaft , the 400XXXL is engineered to deliver without compromise.