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Caterpillar

C9.3 Commercial Propulsion Engine

The C9.3 ACERT propulsion engine has a B rating of 375 bhp (280 bkW) at 1800 rpm, a C rating of 416 bhp (310 bkW) at 2100 rpm, and a D rating of 476 bhp (355 bkW) at 2300 rpm. The C9.3 propulsion, auxiliary, and generator set engines have a common rail fuel system for optimal combustion and lower emissions. Cooling system options for the propulsion and auxiliary engines include heat exchanger with sea water aftercooling, and keel with combined circuit or separate circuit aftercooling. The genset packages are available with heat exchanger, keel, or radiator cooling. These products are EPA Tier 3 and IMO II certified. In addition the propulsionengine ratings are EU Stage IIIA certified and auxiliary and gen sets are also CCNR Stage II certified.

Photos

  • C9.3 Marine Propulsion Engine Commercial Applications
    C9.3 Marine Propulsion Engine Commercial Applications

Documents

Features

Key Features & Benefits

Key Features & Benefits

  • Electronic control system provides industry-leading torque and throttle response at low speeds, while maintaining fuel efficiency at high speeds
  • Common rail fuel system enables optimum combustion and low emissions
  • RH and LH locations service options for fuel and oil filters, as well as dipstick location for easily accessible service
  • Compatible with Cat® displays
  • Available remote-mounted display panel with start, stop, and engine diagnostics
  • 12V or 24V electrical system
  • Certified by all marine classification societies

Key Features & Benefits

  • Electronic control system provides industry-leading torque and throttle response at low speeds, while maintaining fuel efficiency at high speeds
  • Common rail fuel system enables optimum combustion and low emissions
  • RH and LH locations service options for fuel and oil filters, as well as dipstick location for easily accessible service
  • Compatible with Cat® displays
  • Available remote-mounted display panel with start, stop, and engine diagnostics
  • 12V or 24V electrical system
  • Certified by all marine classification societies

Specifications

  • Power Rating
    Spec Value
    Power Range 375-476 bhp (280-355 bkW)
  • Engine Specifications
    Spec Value
    Speed Range 1800, 2100, 2300 rpm
    Emissions IMO II, U.S. EPA Tier 3, China Stage II
    Configuration In-line 6, 4-Stroke-Cycle Diesel
    Displacement 567.5 in³
    Aspiration Turbocharged-aftercooled
    Bore 4.5 in
    Stroke 5.8 in
    Rotation from Flywheel End Counterclockwise
    Rated Engine Speed 1800, 2100, 2300 rpm
    Governor Electronic
    Refill Capacity Lube Oil System w/oil filter change: 24.5 L (6.5 gal)
    Oil Change Interval 500 hrs
    Flywheel Housing SAE No. 1 (113 teeth)
    Cooling Heat exchanger and separate or combined keel cooled options
  • Dimensions & Weights
    Spec Value
    Engine Dry Weight - Approximate 945-1122 kg (2083-2474 lbs)
    Width - Engine 38.5 in
    Height 43 in
    Length - Engine 57.2 in

Standard Equipment

Standard Equipment

  • Water-cooled turbocharger and exhaust manifold
  • Electronic control system
  • Thermostats and housing
  • Gear-driven Sea water pump (self-priming)
  • Common rail fuel system
  • Shell and tube jacket water heat exchanger
  • Corrosion-resistant Sea water aftercooler
  • Engine oil cooler
  • Vibration damper and guard
  • Primary fuel filters

Optional Equipment

Optional Attachments

  • Alternators - 24V 70 or 105 amp, 12V 110 amp
  • Closed crankcase ventilation
  • Transmission gear oil cooler (engine mounted for HEX)
  • Additional engine and transmission sensor packages
  • Instrument panels
  • Electric starting motors - 12V or 24V
  • Air starting motor
  • Dual electric starting motors or combined electric/air
  • Electric fuel priming pump
  • Fuel cooler
  • PTO Drives - V-belt pulley stack, stub shaft
  • Duplex fuel and oil filters
  • Double wall fuel rail