Propulsion engines

C32

The C32 marine propulsion engine is available at ratings that meet EPA Tier 3, EPA Tier 4, and IMO II/III, and EU Stage 5 emissions regulations. It has a separate circuit aftercooling system (SCAC) for A through C ratings and a seawater aftercooling system (SWAC) for D and E ratings. The C32 has several ratings with Wide Operating Speed Range (WOSR) and extended oil change intervals. Other benefits include proven engine operating history and performance iron with thousands of validation testing hours for quality and durability. The C32 marine engine is supported by the extensive Cat global dealer network and standard warranty.

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Power Rating
Power Range 660 - 1600 bhp (492 - 1193 bkW)
Engine Specifications
Speed Range 1600 - 2300 rpm
Emissions U.S. EPA Tier 3/ Tier 4, IMO II/III, EU Stage V
Aspiration Twin Turbocharged Aspiration
Bore 5.71 in
Stroke 6.38 in
Displacement 1959.0 in³
Rotation from Flywheel End Counterclockwise
Configuration V 12, 4-Stroke-Cycle Diesel
Dimensions & Weights
Maximum Height 62.5 in
Minimum Length 77.8 in
Minimum Height 60.9 in
Maximum Width 60.17 in
Maximum Length 83.5 in
Minimum Width 60.17 in

AIR INLET SYSTEM

  • Separate Circuit After-Cooled (SCAC)
  • Seawater After-Cooling (SWAC) System
  • Air cleaner
  • Turbochargers, jacket water cooled
  • Turbochargers inlet, 152 mm (6 in) OD straight connection

CONTROL SYSTEM

  • Programmable Low Idle (550 - 750 rpm)
  • WOSR (Wide Operating Speed Range) available for - A, B, & C Ratings
  • Programmable High Idle Limit for WOSR Ratings
  • Electronic diagnostics and fault logging
  • Engine and transmission monitoring (speed, temperature, pressure)
  • Electronic fuel/air ratio control
  • Engine Protection Mode for extended ambient conditions
  • Torque Limiting functionality for WOSR ratings only
  • 70-pin customer connector
  • Throttle Input signal options

COOLING SYSTEM

  • Separate Circuit After-Cooling (SCAC) for Heat Exchanged (HEX) & Keel cooled engines
  • Jacket Water (JW) and SCAC Heat Exchangers Shell & Tube for HEX cooled engines
  • SCAC pump, gear driven
  • Jacket water pump, gear driven
  • Sea water pump, bronze impeller, gear driven, for HEX cooled engines only
  • Sea water Pump & JW Heat Exchanger Connection: 76.2 mm (3in) ID Standard
  • Keel Connections: 76.2 mm (3in) ID Standard 4 Bolt ANSI Flange Connection
  • SCAC and JW shunt tanks for maintaining proper pump inlet pressures
  • Seawater After-Cooling (SWAC) System

EXHAUST SYSTEM

  • 4 Bolt 130 mm (5.12 in) diameter flanged outlet
  • Water-cooled exhaust manifold & turbocharger

FLYWHEELS & FLYWHEEL HOUSINGS

  • SAE standard rotation (CCW facing exciter end)
  • Flywheel Housing: SAE No. 0, Flywheel: 18 inch, 136 teeth

FUEL SYSTEM

  • Duplex Fuel Filters, Spin-on, RH & LH service
  • Fuel connections size:Supply JIC 37 Deg -10 (7/8-14), Return JIC 37 Deg -8 (3/4-16)
  • Plate Type Fuel Cooler installed behind Aftercooler Shunt Tank
  • Fuel transfer pump, gear driven
  • Manual fuel priming pump
  • Hybrid fuel line design

LUBE SYSTEM

  • Simplex Oil Filters, RH or LH service
  • Deep sump oil pan
  • RH or LH service oil filler locations
  • RH or LH service dipstick
  • Oil pump, gear driven

MOUNTING SYSTEM

  • Front support - adjustable

POWER TAKE-OFFS

  • Front Poly-V groove pulley (Quantity 1) for auxiliary drives

GENERAL

  • Common electrical bonding point
  • Engine does not ship with zinc components
  • C32 ACERT SCAC Tier 3 Propulsion Engine 1300 bhp WOSR 1800-2100 rpm, 1450 bhp WOSR 2100-2300 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 969 bkW (1299 bhp) @ 1800-2100 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 492 bkW (660 bhp) @ 1800 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 1081 bkW (1450 bhp) @ 2300 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 970 bkW (1300 bhp) @ 1800 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 895 bkW (1200 bhp) @ 2000 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 970 bkW (1300 bhp) @ 2100 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (IMO II) 708 bkW (950 bhp) @ 1600 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 895 bkW @ 1800-2100 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 970 bkW @ 1800-2100 rpm
    application/pdf
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  • C32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 1081 bkW @ 2050-2150 rpm
    application/pdf
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  • IMO II/III Solutions Data Sheet
    application/pdf
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Need installed dimensions with enclosure and tank? See Model Configurations