Upon the heels of the highly successful Verado 400R outboard is its sinister competition relative, the Mercury Racing 400 ROS (Race Offshore).  The 400 ROS features the 400R powerhead mounted on an all-new race midsection, featuring the competition-proven Mercury Racing heavy-duty swivel clamp bracket assembly.

A Sport Master gearcase transfers the 400 ROS’s massive power to the water. And to ensure every revolution counts, Mercury Racing has developed an all-new line of CNC cleaver propellers specifically for the 400 ROS.

SPECIFICATIONS:

PROPSHAFT RATED HORSEPOWER (KW) - 400/298
MAX RPM AT FULL THROTTLE - 6400-7000
CYLINDERS/ENGINE CONFIGURATION - Inline 6, 24-Valve Direct-Acting Double Overhead Cam (DOHC)
DISPLACEMENT: L ITERS (L) CUBIC INCHES (CID)2.6/158.5
BORE & STROKE: INCHES (IN) MILLIMETERS (MM)3.23 X 3.23/82 X 82
INDUCTION SYSTEM - Supercharged With Charge Air Cooling & Electronic Boost Control
FUEL OCTANE REQUIREMENTS - Unleaded 91 R + M/2 (98 RON) Recommended For Maximum Performance
IGNITION SYSTEM - Digital Inductive
CHARGING SYSTEM - Fully Regulated Belt Driven 70-Amp (882 Watt)
STARTING - SmartStart Electric
EXHAUST SYSTEM - Above Water
COOLING SYSTEM - Water Cooled With Thermostat & Pressure Controlled
LUBRICATION SYSTEM - Dry Sump
OIL REQUIREMENT - Mercury Racing NMMA Certified FCW SAE 25W-50 Synthetic Blend
OIL CAPACITY - 8.5 QUARTS (QTS.) / 8 LITRES (L)
ENGINE MANAGEMENT SYSTEM - SmartCraft
ENGINE CONTROL SYSTEM - SmartCraft Digital Throttle & Shift (DTS)
GEAR SHIFT - F-N-R
GEAR RATIO - 1.75:1
SHAFT LENGTH - 15 INCHES (IN.) / 381 MILLIMETERS (MM)
COUNTER ROTATION - Available
TRIM/TILT SYSTEM - Power Trim And Tilt Remote Mount Pump
STEERING SYSTEM - External Plate Mount
DRY WEIGHT - POUNDS (LB.) 648 / KILOGRAMS (KG.) 294
WARRANTY - None