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HOME BRANDS & PRODUCTS CAT PRODUCT LINE POWER SYSTEMS MARINE POWER SYSTEMS COMMERCIAL PROPULSION ENGINES C12 PROPULSION ENGINE

C12 PROPULSION ENGINE

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Cat® C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. There is also a wide range of optional equipment available to meet the needs of your marine commercial or pleasure craft application.

SPECIFICATIONS

Power Range340-490 bhp (254-366 bkW)

Speed Range1800-2300 rpm

ConfigurationIn-line 6, 4-Stroke-Cycle Diesel

power rating

Power Range340-490 bhp (254-366 bkW)

engine specifications

Speed Range1800-2300 rpm

ConfigurationIn-line 6, 4-Stroke-Cycle Diesel

AspirationTA

Bore130.0 mm

Stroke150.0 mm

Displacement12.0 L

Rotation (from flywheel end)Counterclockwise

EmissionsIMO I, IMO II

dimensions

WeightsLength

15740 mm

Dimensions Weights

width

969.0 mmDimensions

weights

Height1005.0 mm

dimensions

WeightsDry Weight

11740 kg

C12 STANDARD EQUIPMENT

  • air inlet system
    Aftercooler - sea water; corrosion resistant, Air Cleaner/Fumes Disposal (closed system), Turbocharger, Jacket Water Cooled
  • control system
    Electronic governing, Cold mode start strategy, Power compensation for fuel temperature, Programmable low idle, Electronic diagnostics and fault logging, Engine and transmission monitoring (speed, temperature, pressure), Fuel/air ratio control, Emergency stop switch (A
  • b ratings only
    Cooling System
  • thermostat and housing jacket water pump gear driven sea water pump rubber impeller selfpriming geardriven integral heat exhangerexpansion tank removable tube bundle replaceable coppernickel tubes keel cooling combined circuit includes pipe thread flange kit
    Exhaust System
  • watercooled manifold
    Turbocharger
  • flywheels
    Flywheel Housings
  • flywheel sae no 1 113 teeth flywheel housing sae no 1 10 degree slant pad sae standard rotation
    Fuel System
  • fuel filer rh service on port lh service on starboard fuel transfer pump fuel priming pump flexible fuel lines
    Instrumentation
  • service meter electric
    Lube System
  • crankcase breather oil cooler oil filter spinon rh service on port lh service on starboard oil filler dipstick rh service on port lh service on starboard oil pump gear driven
    Mounting System
  • front support
    Power Take-Offs
  • hydraulic pump drive sae a 11 tooth spline 57 ftlbs max torque counterclockwise as viewed from the rear of hte engine looking into the pump drive and turns 141 x engine speed crankshaft pulley 345 mm 136 in single groove 1588 mm 63in width
    Protection System
  • shutdown electronic 12 or 24 volt energized to run
    General
  • vibration damper lifting eyes rh or lh service options literature variable engine wiring upper rearfacing customer wiring connector and ecap connection electronic installation kit connectors pins sockets

C12 OPTIONS

    • air inlet system
      Low Profile Air Inlet Line, Shield (Air Inlet Line)
    • charging system
      Charging Alternators, Voltmeter Guages, Voltmeter Guage Mounting, Alternator Mounting Group
    • cooling system
      Sea Water Pump, Coolant Recovery Tank, Flange Kit
    • exhaust system
      Flexible Fitting, Elbow, Dry Elbow, Watercooled Elbow, Exhaust Connection, Exhaust Outlet Pipe, EXH Outlet Flange, Rain Cap, Muffler
    • fuel system
      Fuel Cooler, Fuel Connections, Primary Fuel Filter, Primary Fuel/Water Separator
    • instrumentation
      OEM Wiring Harness, Engine to Engine Harness, Digital Tachometer, Tachometer Mounting, Magnetic Pickup, RH 4 Hole Instrument Panel, LH 4 Hole Instrument, Marine Power Display System, Marine Power Display Unit (for additional monitoring stations), Marine Power Display Bracket, Wiring Group, Transmission Sensors
    • lube system
      Manual sump pump, Transmission oil cooler
    • mounting system
      Vibration Isolators
    • power takeoffs
      Crankshaft Pulley, Front Stub Shaft, Front Stub Shaft
    • pulley
      Starting System
    • air pressure regulator air start silencer start switch jacket water heater battery sets 24 volt dry
      General
    • wiring harness removal belt guard alternator belt guard alternator pulley filter cover kit
      Packing
    • overseas preservation engine protective cover storage preservation export packing
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