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Mercury 400CL 400HP – Verado V10 20″ Shaft Counter Rotation DTS in Black
Engine Performance: 5.7L V10 displacement balanced thrust
Fuel Efficiency: Digital fuel injection optimized delivery
Shaft and Build: 20-inch shaft phantom black casing
Control System: Digital Throttle and Shift (DTS)
Marine Protection: Extreme durability for high-speed saltwater
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Description
Mercury 400CL 400HP Verado V10 DTS
The Mercury 400CL Verado is a monumental 400HP FourStroke outboard featuring the industry-first naturally aspirated V10 architecture for the elite US offshore boating market. Built upon a massive 5.7L Dual Overhead Cam (DOHC) powerhead and weighing 695 lbs, this engine redefines high-performance through sheer displacement and digital precision. This 20-inch shaft model is configured for counter-rotation, making it the ideal port-side companion for dual-engine high-performance center consoles. Our dependable outboard propulsion systems guarantee the vibration-free performance and massive electrical capacity required for premium coastal navigation.
Operational peak performance for the Mercury 400HP V10 is aggressively maintained within the 5800 to 6400 RPM range, supported by a class-leading 150 Amp alternator. The 2.08:1 gear ratio translates the massive 5.7L torque curve into blistering hole-shot acceleration and unmatched top-end speed on high-performance hulls. Manufactured in the USA, this highly corrosion-resistant marine engine incorporates SmartCraft Digital Throttle & Shift (DTS) and an integrated High-Output Electric/Hydraulic power steering system to ensure a silky-smooth, cable-free experience across turbulent offshore swells.
Technical Specifications of Mercury 400CL Verado V10
- The industry-first 5.7L V10 40-valve DOHC architecture delivers massive naturally aspirated displacement and explosive low-end torque.
- Integrated High-Output Electric/Hydraulic Power Steering offers hyper-responsive, automotive-like control for large offshore vessels.
- A monumental 150 Amp alternator delivers 1890 Watts of charging power, the highest in its class for complex electronics and gyrostabilizers.
- Counter rotation left-hand drive ensures perfectly balanced steering and tracking in multi-engine offshore boat configurations.
- SmartCraft Digital Throttle & Shift (DTS) eliminates mechanical friction for instantaneous and hyper-responsive helm control.
- Naturally aspirated design eliminates the complexity of forced induction while providing instantaneous, linear power delivery.
5.7L V10 Naturally Aspirated Power
The Mercury 400CL 5.7L V10 platform leverages a naturally aspirated DOHC design to provide the smooth, reliable torque that offshore captains depend on. This “displacement over forced induction” philosophy translates to exceptional durability, instantaneous low-end grunt for hauling heavy fuel loads, and incredibly smooth power delivery during high-speed offshore runs in the American saltwater environment.
Integrated High-Output Power Steering
Mercury’s integrated electric/hydraulic power steering system removes the need for external steering rams and hoses. This digital drive-by-wire steering provides captains with effortless, precision control, which is vital when precisely docking large multi-engine center consoles in crowded American marinas or navigating high-speed coastal transits.
150A Industry-Leading Alternator
Equipped with a 150 Amp alternator, the V10 Verado provides unprecedented charging power. This robust output is essential for modern offshore boats equipped with multiple high-definition displays, radar, and complex entertainment systems, ensuring your battery bank remains fully charged even during long periods of idling in the open ocean.
Mercury 3-Year Protection
Every Mercury 400HP Verado V10 outboard is backed by a comprehensive 3-Year Limited Warranty for American owners. This factory-level protection ensures long-term peace of mind and grants access to genuine parts through a vast nationwide marine dealer network.
High-Performance Offshore Match
This Mercury 400CL 20-inch counter-rotation V10 outboard is the ultimate port-side power solution for large offshore center consoles and high-speed deep-V hulls. It provides the sustained high-end thrust needed for navigating difficult coastal tidal flows while offering unmatched digital maneuverability and whisper-quiet operation.
Maintenance & Longevity
Maintaining clean oil in the 8.0L integrated wet sump system is vital for preserving the V10’s tight engine tolerances. Always flush the cooling system with fresh water after every saltwater outing. Pro Tip from the Shop: Utilize the exclusive Top Cowl Service Door for daily oil checks and verify the SmartCraft NMEA Gateway health to ensure your high-output alternator and steering systems are communicating perfectly with your digital helm before every high-speed run.
Mercury 400CL 400HP Verado V10 Specs (Black)
| Brand | Mercury Marine |
| Model Name | Verado V10 400HP (Counter) |
| Part Number/SKU | 400CL |
| Technology Category | V10 Naturally Aspirated 4-Stroke |
| Engine Architecture | V10 5.7L Dual Overhead Cam (DOHC) |
| Shaft Length | 20-Inch (Short) |
| Rotation | Counter Rotation (Left-Hand) |
| Full Throttle RPM | 5800-6400 RPM |
| Fuel Induction | Electronic Fuel Injection (EFI) |
| Alternator Output | 150 Amps |
| Steering | Integrated High-Output Electric/Hydraulic |
| Trim System | Power Trim & Tilt |
| Gear Ratio | 2.08:1 |
| Digital Control | SmartCraft DTS (Digital Shift & Throttle) |
| NMEA Interface | SmartCraft NMEA Gateway Compatible |
| Dry Weight | 316 kg (695 lbs) |
| Country of Origin | USA |
| Standard Warranty | 3-Year Limited |
Mercury 400CL Verado V10 400HP Technical Guide
The Mercury 400CL Verado V10 burns approximately 37.2 gallons per hour at wide open throttle using its 5.7L displacement and advanced midsection technology. This 20-inch shaft counter-rotation model delivers high-torque performance with industry-leading refinement and quietness. Track your gallons per hour rate at a 4500 RPM cruise to maximize fuel range during offshore maneuvers.
This black Verado V10 utilizes Mercury’s multi-stage paint process and specialized copper-free alloys to protect the 20-inch housing from brine accumulation. The system is engineered to meet rigorous ABYC standards for extreme saltwater durability. Regularly inspect the sacrificial aluminum anode locations on the gearcase to prevent galvanic corrosion on the counter-rotation assembly.
Service manuals for the 5.7L V10 powerhead specify an oil capacity of 8.5 US quarts when performing a standard service with filter replacement. Maintaining the FC-W engine oil capacity with Mercury 25W-40 Synthetic Blend is critical for the high-performance valvetrain. Check the oil level via the convenient top-cowl service door while the engine is vertical.
The 400CL features a high-output 150-amp alternator, designed to support heavy electronic loads and Digital Throttle & Shift (DTS) controls effortlessly. A battery with a minimum marine cranking amps rating of 1000 MCA is mandatory for starting this high-compression V10 block. Ensure all electrical rigging complies with ABYC standards for safety.
The 400CL typically operates best with Revolution 4 or Eco Enertia stainless steel propeller pitch blades chosen to match the standard rotation unit in multi-engine setups. Correct pitch selection keeps the engine within the 5800-6400 RPM full-throttle operating window. Consult a specialist to synchronize performance across the counter-rotation gearcase.
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