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Caterpillar

Cat C32 Propulsion Engine (IMO II)

The C32 marine propulsion engine is available at ratings that meet IMO II emissions regulations. It has a separate circuit aftercooling system (SCAC) for A through C ratings, six 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 Caterpillar’s standard warranty.

Media

Photos

C32 ACERT IMO II Commercial Propulsion Engines
C32 ACERT IMO II Commercial Propulsion Engines

Documents

Features

Emissions

Worldwide Support

Durability

Reliability

Six Ratings with Wide Operating Speed Range (WOSR)

Seperate Circuit Aftercooling System: A-C Ratings

Details

Specifications

Spec Value
Power Range 660-1450 bhp (492-1081 bkW) 660-1450 bhp (492-1081 bkW)
Spec Value
Speed Range 1600-2300 rpm 1600-2300 rpm
Emissions IMO II, EU IW IMO II, EU IW
Aspiration TTA TTA
Bore 5.71 in 145 mm
Stroke 6.38 in 162 mm
Displacement 1959 in³ 32.1 l
Rotation from Flywheel End Counterclockwise Counterclockwise
Configuration Vee 12, 4-Stroke-Cycle Diesel Vee 12, 4-Stroke-Cycle Diesel
Spec Value
Minimum Dry Weight 6950 lb 3152 kg
Minimum Length 77.8 in 2121 mm
Maximum Length 83.5 in 2284 mm
Minimum Height 60.9 in 1547 mm
Maximum Height 62.5 in 1587 mm
Minimum Width 60.17 in 1528 mm
Maximum Width 60.17 in 1528 mm

Standard Equipment

AIR INLET SYSTEM

  • Separate Circuit After-Cooled (SCAC
  • 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

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

Optional Equipment

Air Inlet Systems

  • Air Inlet Cleaner
  • Air Inlet Adapter

Charging Systems

  • Battery Charger
  • Charging Alternators
  • Ammeter

Cooling System

  • Marine Gear/Transmission Oil Coolers
  • Connections

Exhaust System

  • Dual Elbow
  • Flexible Fitting
  • Dual Muffler
  • Muffler Spark Arresting
  • Flange

Fuel System

  • Water Separator

Instrumentation

  • OEM Wiring Harness
  • Engine to Engine Harness
  • Instrument Panels
  • Exhaust Temperature Sensors
  • Wiring Harness
  • Gauges
  • Transmission Sensors

Lube System

  • Transmission Oil Cooler
  • Manual Sump Pump
  • Duplex Oil Filters

Protection System

  • Fuel and Oil Shielding

Starting System

  • Air Starting Motor
  • Air Start Accessories
  • Electric Starting Motors – Single 24 Volt
  • Starting Aids
  • Battery Sets – 24 Volt – Dry
  • Dual Starting Motors (Electric and Air)

Packing

  • Engine Protective Cover
  • Export Packing
  • Storage Preservation

Mounting System

  • Front Support
  • Adapter Kits
  • Isolator Mounts

Power Take-Offs

  • Front Enclosed Clutches
  • Rear Hydraulic Pump Drive

GENERAL

  • Fumes Disposal

CONTROL SYSTEM

  • Instrument Panels
  • CATERPILLAR ALARM AND PROTECTION
  • Fuel and Oil Shielding

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