2018 Mercury Verado® 400R – 20 in. Shaft


Engine Type
Inline 6-cylinder
Electric (Turn-key) with SmartStart


Shaft Length
20 in. (508 mm)
668 lb. (303 kg)


Shaft Rotation
Counter rotation available
Propshaft Horsepower
400 hp (298 kW)
Full Throttle Operating Range
6400-7000 rpm
Gear Ratio / Shift
Fuel Induction
Sequential Multi-Post Electronic Fuel Injection (EFI)
70 AMP / 882 Watt (Belt-Drive)
Supercharged with Cold Air Intake and charge air cooling and electronic boost pressure control
Electro-hydraulic power steering; Joystick Piloting for Outboards
2-Year Limited for recreational boating, 3-Year Limited Corrosion warranty.


2018 Mercury Verado® 400R – 20 in. Shaft


The New Standard of Performance

  • Cool Air Intake: The cool air intake grabs fresh outside air to feed the supercharger and cooler air means more horsepower for big performance gains
  • Supercharger: The water-cooled supercharger uses the engine cooling system to reduce air temperatures and supercharger load, increasing supercharger durability and more importantly – POWER
  • Charge Air Cooler: For even more power, the air is cooled one last time by the charge air cooler after the air exits the supercharger and before it enters the cylinder head for maximum performance
  • Electronic Boost Bypass Control Valve: Electronically monitors boost pressure levels to self-compensate for environmental changes, delivering consistent power that you have to feel to believe
  • Guide Plates: Standard on all 400R models, the stainless steel guide plates stabilize the engine and Advanced Midsection for improved durability and rock solid handling at high speeds and in rough seas
  • Engine Mounts: High performance engine mounts designed in conjunction with Mercury’s exclusive Advanced Midsection for the perfect combination of handling and overall running quality
  • SmartCraft: A big part of what makes the 400R so great is the suite of technologies that support the Verado platform. SmartCraft integrated marine technology is the brains behind the operation and the backbone for leading technologies like Digital Throttle & Shift and Joystick Piloting for Outboards. SmartCraft links the engine, controls, steering, and displays to provide data to keep the user informed of engine diagnostics and performance.
  • DTS: Digital Throttle and Shift is a fully electronic throttle and shift system that offers smooth and predictable shifting and instant throttle response, similar to a modern sports car. DTS reduces the loud “clunk” associated with mechanical shifting for a high quality experience. Mercury Racing Zero Effort controls with Shadow Mode offer the ability to throttle and shift up to four engines with just two throttle and two shift levers for easier control at higher speeds
  • Joystick Piloting for Outboards: Running full throttle in the open water is what the 400R was designed to do, but docking a large boat in wind and current can sometimes be a challenge. Joystick Piloting for Outboards takes away the anxiety by combining throttle, shift and steering into one easy to use joystick which is designed for maximum maneuverability at lower speeds. The 400R gives you maximum performance at high and low speeds with Joystick Piloting for Outboards.
  • Make a Statement: Seven different colors are available for the graphics package on the Cold Fusion White 400R and are designed to reflect your personal style or match the color palette of the boat. Either way, heads will turn, even if you won’t be in view for long. Phantom Black available only with Red / Carbon graphics package.
  • HP / kW: 400/298
  • Full Throttle RPM: 6400-7000
  • Engine Type: Inline 6-cylinder
  • Displacement: 2.6L
  • Air Induction System: Supercharged with Cold Air Intake and charge air cooling and electronic boost pressure control
  • Fuel System: Sequential Multi-Post Electronic Fuel Injection (EFI)
  • Fuel Requirements: Recommended Unleaded 91 Octane; Minimum Unleaded 89 Octane
  • Starting: Electric (Turn-key) with SmartStart
  • Exhaust System: Through Prop
  • Recommended Oil: Mercury Racing 25W-50; NMMA Certified FCW 25W-50 Synthetic Blend
  • Oil Capacity: 8.0 Liters
  • Engine Management System: SmartCraft Engine Guardian
  • Minimum Centerline Mounting Distance: 26 inches
  • Steering System: Electro-hydraulic power steering; Joystick Piloting for Outboards
  • Gearcase: 5.44″ Offshore HD Sport Master in straight, left and right camber
  • Gear Ratio: 1.75:1
  • CARB Star Rating: CARB 2-Star
  • Alternator/AMP: 70 AMP / 882 Watt (Belt-Drive)
  • Counter Rotation: Available in both gearcases
  • Dry Weight: 668 lbs (303 kg)
  • Shaft Length: 20″ / 508mm
  • Colors: Phantom Black, Cold Fusion White
  • Warranty: 2-Year Limited for recreational boating, 3-Year Limited Corrosion warranty.


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