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Mercury Diesel QSD 4.2 – 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 planing times. QSD engines are compatible with SmartCraft electronics, SeaCore corrosion protection, Axius joystick control systems and Mercury’s effortless Digital Throttle & Shift systems.

Engine Overview

• Expect superior performance and quick
response from this compact, robust design
• Enhanced fuel economy delivered by the
full-authority electronic engine control
• Quiet, smooth performance and enhanced
sociability produced from the proven High-
Pressure Common-Rail fuel system
• Maximise vessel performance and access
comprehensive vessel diagnostic information
via SmartCraft® electronics

Features

Fuel System: Bosch Common-Rail (CRS 2.0);
Integrated WIF sensor in secondary fuel filter
Lubrication System: Cast aluminium oil pan
Electrical System: 12 Volt system
Coolant System: Sea Water Aftercooled; Heat
Exchanger only
Emissions: EPA Tier 2, IMO, RCD certified,
BSO/SAV (select ratings)

Tailor a propulsion package based on budget and needs:

QSD4.2 270 & 320 available with Bravo 1X, 2X, 3X
& 3XR drives

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)

QSD4.2 270, 320 and 350 available for inboard
applications with ZF63 A & ZF63 IV mechanical
shift gears or DTS with optional trolling valve