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Mercury Diesel QSD common rail or electronic injection fuel systems provide increased power-to-weight ratios, cleaner starts and less noise for a superior boating experience.
The QSD line of engines are built lightweight, compact and provide increased power for impressive acceleration, throttle response and quicker planning times.
QSD engines are compatible with SmartCraft electronics, SeaCore corrosion protection, Axius and Zeus joystick control systems and Mercury's effortless Digital Throttle & Shift systems.
Have a question about the 2012 Mercury Diesel QSD 4.2L?
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Specifications
Engine Specs
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Displacement Liter/CID
:
4.2 L (254 in³)
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Cylinder/Configuration
:
In-line 6-cylinder, 4-stroke diesel
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Bore & Stroke (in/mm)
:
3.7 in x 3.9 in (94 mm x 100 mm)
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Compression Ratio
:
17.5:1
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Full Throttle RPM Range
:
3800-3800
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Rotation
:
Counterclockwise facing flywheel
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Dimensions (LxWxH) in
:
36 in x 30 in x 31 in
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Dimensions (LxWxH) mm
:
929 mm x 773 mm x 790 mm
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Weight (lbs/kg)
:
1,014 lbs / 460 kg
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Air Induction System
:
Turbocharged / Sea Water Aftercooled
Specs
Specifications are subject to change without notice
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Cooling System: Sea Water Aftercooled; Heat Exchanger only
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Electrical System: 12-volt system
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Emissions: EPA Tier 2, IMO, RCD certified, BSO/SAV
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Fuel System: Bosch Common-Rail (CRS 2.0); Integrated WIF sensor in secondary fuel filter
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Lubrication System: Cast aluminum oil pan
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Engine Controls: Mechanical and Digital Throttle and Shift (DTS) options
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Instrumentation: SmartCraft digital displays and / or analog style gauges provide data on engine speed, oil pressure, coolant temp, battery voltage, vessel speed, and drive trim position.
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QSD4.2 270 & 320 available with Bravo 1X, 2X, 3X & 3XR drives
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QSD4.2 270, 320 and 350 available for inboard applications with ZF63 A & ZF63 IV mechanical shift gears or DTS with optional trolling valve
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QSD4.2 350 available with Bravo 1XR, Bravo 2XR and Bravo 3XR drives and optional Digital Throttle and Shift (DTS) for improved performance and smooth handling (Premium)
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Vessel System Integration: New Vessel Interface Panel (VIP)
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