A New Generation

400R

 
Racing V10 5.7l

Outboard Wide-Open Power And Technology

Deep-Breathing Qc4 Technology

Performance you will feel – instantly. A new naturally aspirated V10 5.7-liter powerhead features the deep-breathing Mercury Racing Quad Cam Four Valve (QC4) design with proprietary 92mm throttle body and tuned intake to maximize airflow and power.

Exclusive 92mm Throttle Body

A proprietary 92mm throttle body and tuned intake work with the QC4 head to maximize airflow and power. The exclusive heavy duty throttle body servo motor is designed to produce instant throttle response, while a Mercury Racing fuel pressure sensor provides precise fueling under acceleration to further enhance throttle response.

Sport Master Gearcase

The race-proven Sport Master gearcase is a surface-piercing design intended for boats capable of exceeding 85 mph, and features low water pick-ups and a crescent leading edge to maximize speed and efficiency. It also features a 1.60:1 gear ratio.

5.44 Hd Gearcase

The Mercury Racing 5.44 HD gearcase option is ideal for heavy bay boats and multi-engine performance center console boats that require a more-submerged gearcase and benefit from added stern lift. It features a 1.60:1 gear ratio.

Feel The Power

The dual muffler system of Advanced Sound Control offers the option of a deep sport tone with a stirring growl on start-up.

Hold Spacebar
Turn on sound for Maximum Feel

Facts & Figures

6000-6600
FULL THROTTLE RPM
400
RATED HP
V10
CYLINDERS
5.7L
DISPLACEMENT
Name Description
HORSEPOWER (HP/KW) 400 / 298
WOT RPM 6000-6600
ENGINE TYPE V10 (64-degree) with 40-Valve Dual Overhead Cam (DOHC)
DISPLACEMENT (LITER/CID) 5.7 / 349
INDUCTION SYSTEM Naturally Aspirated
FUEL REQUIREMENTS Unleaded Regular 87 Octane Minimum (R+M/2) or 91 RON
CHARGING (AMP/WATT) 150 / 1890
THROTTLE & SHIFT Digital Throttle & Shift
MIDSECTION Racing Advanced Midsection
INTEGRATED REAR TIE BAR BRACKET Available
SHAFT LENGTHS (INCH) 20, 25, 30, & 35
GEARCASE Sport Master or 5.44" HD
GEARCASE RATIO 1:60:1
DRY WEIGHT (LB/KG) 695 / 315
WARRANTY 3-Year Limited
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