Cummins QSB5-9 Marine Engine Specs

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Cummins QSB5-9 Marine Engine Overview

Another diesel engine that produces by Cummins Company, this engine is part of Quantum engine series that has tones of advantages as following detail.

  • Instant start-up in cold weather
  • Virtually smoke and odor free operation
  • Lighter weight with increased power
  • Simplified engine information management
  • 80% less noise at idle on the QSB Series
  • SmartCraft vessel integration
  • Unmatched durability
  • EPA Tier 2, IMO and RCD certifications

This engine also came with 24 pcs of valve cylinders that installed on all 6 cylinders, it’s mean each cylinder are installed with 4 valves. A lot of features also available on this engine, they area such as

  • Fuel system, it was using Bosch high pressure common rail fuel system, with front was mounted spin on fleet guard fuel filter
  • Lubrication system is using front mounted spin on fleet guard lube filter
  • Electrical system using 12 volt and 24 volt available
  • Air intake system that using light duty type air cleaner
  • Coolant system using sea water heat exchanger cooling system.

Cummins QSB5-9 Marine Engine Specs

Here they are detailed specification of Cummins QSB5-9 Marine Engine

Specs Item Specs
Engine Model Cummins QSB5-9 Marine Engine
Rating Type High Output
Engine Power 230- 425 hp @2600 – 3000 rpm
Engine Speed 2000 rpm max
Engine Torque 607 – 908 ft.lbs @ 1800 – 2000 rpm
Bore x stroke 4.02 x 4.72
Displacement 5.9L ( 359 cu in)
Aspiration Turbocharged
Configuration In-line 6-cylinder, 4-stroke diese
Compression Rate 16.5:1
Fuel System Front mounted spin on Fleetguard fuel filter
Air System Light duty or serviceable type aircleaner

Cummins QSB5-9 Marine Engine Accessories

Beside default engine features and specification this engine also came with some kinds of engine accessories that can improve engine performance, the accessories are as following detail

  • Open and closed breather control
  • C- Cruise package engine Control
  • Smart craft Instrumentation, that completed with digital display and analog gauges, that provide data on engine speed, oil pressure and engine load
  • Vessel System integration with SmartCraft monitors fluid level, vessel range, depth, vessel speed, rudder position, temperatures and more.Cummins QSB5-9 Marine Engine

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