C32 ACERT Tier 3

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C32 ACERT generator sets incorporate a separate circuit aftercooling system (SCAC) for all configurations. The primary advantage of the SCAC systsem is reduced aftercooler corrosion since no sea water circulates through the aftercooler. Many other improvements on these engines contribute to minimizing owning and operating costs. The EPA Tier 3, IMO II, EU Stage IIIA compliant ratings are available with heat exchanger or keel cooled options. Heat exchanger configurations have an optional front mounted sea water pump.

Generator Set Specifications

Minimum Rating 730 ekW (913 kVA) 730 ekW (913 kVA) Less
Maximum Rating 940 ekW (1175 kVA) 940 ekW (1175 kVA) Less
Frequency 60hz 60hz Less
Speed 1800 rpm 1800 rpm Less
Emissions/Fuel Strategy EPA Tier III EPA Tier III Less

Engine Specifications

Aspiration Turbocharged and aftercooled Turbocharged and aftercooled Less
Bore 5.7 in 145.0 mm Less
Stroke 6.38 in 162.0 mm Less
Displacement 1959.0 in³ 32.1 l Less
Governor Type Electronic Electronic Less
Fuel System MEUI MEUI Less
Engine Model Vee-12, 4-stroke-Cycle-Diesel Vee-12, 4-stroke-Cycle-Diesel Less

Generator Set Dimensions

Width 60.2 in 1528.0 mm Less
Height 65.6 in 1667.0 mm Less
Weight - Estimated 15721.0 lb 7131.0 kg Less
Length 162.8 in/4271 mm (minimum), 175.3 in/4452 mm (maximum) 162.8 in/4271 mm (minimum), 175.3 in/4452 mm (maximum) Less

Generator Specifications

Excitation Permanent magnet Permanent magnet Less
Number of Poles 4 4 Less
Number of Bearings 2 roller bearings 2 roller bearings Less
Number of Leads 6 6 Less
Insulation Class H Class H Less
IP Rating 23 23 Less
Voltage Regulator CDVR CDVR Less

C32 ACERT Tier 3 Standard Equipment

  • Separate circuit after-cooled (SCAC)
  • Turbocharger, jacket water cooled
  • Turbocharger inlet, 152 mm (6 in) OD straight connection
  • Air Inlet Cleaner
  • Closed Crankcase Ventilation
  • Air inlet adapter

  • 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
  • Jacket water HEX with Sea water pump Connections: 76.2 mm (3in) ID Standard
  • 4 Bolt ANSI Flange Connection
  • Jacket water HEX without Sea water pump Connection: 2.5" hose barb connection (inlet), 76.2 mm (3in) ID Standard 4 Bolt ANSI Flange (outlet)
  • Keel Connections: 76.2 mm (3in) ID Standard 4 Bolt ANSI Flange Connection
  • SCAC and JW shunt tanks for maintaining proper Pump inlet pressures

  • Flywheel Housing, SAE No. 0
  • Flywheel, 18 inch, 136 teeth
  • SAE standard rotation

  • SR5 form wound
  • 2 roller bearings
  • Permanent magnet excitation
  • 4 pole, 6 leads, Series Star connected
  • Caterpillar's Digital Voltage Regulator (CDVR)
  • Marine Class H insulation, Class F temperature rise
  • Surface mounted platinum (PT100) 3-wire RTDs, 2 per phase on stator and one each on support bearings
  • Anti-condensation space heaters (2 elements - 240 VAC, 1000 Watts
  • IP23 Protection suitable for use with Fixed Water Based Local Application Fire Fighting Systems (FWBLAFFS)
  • System IV insulation for harsh environment protection

  • Duplex Oil Filters, Sump Pump
  • Simplex oil filters, RH service
  • Deep sump oil pan
  • RH service oil filler locations
  • RH service dipstick
  • Oil pump, gear driven

  • Formed C-channel rails, 300mm (11.81in) height
  • Six shipped loose combined helical spring/rubber
  • isolators for installation below package base

  • Front Damper guard
  • Common electrical bondng point on HEX and KEEL cooled engines

C32 ACERT Tier 3 Optional Equipment

  • Remote panels
  • MCS Controller
  • Power analyzer module
  • Oil level, exhaust temperature, air starting pressure, heat exchanger pressure sensors

  • Dry Elbows
  • Flexible Fitting
  • Flange
  • Muffler
  • Muffler Spark Arresting
  • Rain Cap
  • Water-cooled exhaust manifold & turbocharger
  • 4 Bolt 130 mm (5.12 in) diameter flanged outlet

  • Battery Chargers, Charging Alternators

  • If an EMCP panel or MGCP option is not chosen as optional equipment, then start/stop controls must be provided by the customer
  • Electronic diagnostics and fault logging
  • Engine Protection Mode for extended ambient conditions
  • Electronic fuel/air ratio control
  • Load Sharing Attachment

  • Water Separator
  • Duplex Fuel Filters, Spin-on, RH 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

  • Fuel and Oil Shielding

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


U.S. EPA Tier 3 compliant

Worldwide Support

Extensive service network of dealers; Unparalleled service from authorized marine dealers


Proven engine operating history; Performance iron with thousands of hours of validation testing for quality and durability


60 months standard warranty

Cooling System

Heat Exchanger or Keel Cooling; Heat exchanger configurations: optional front mounted sea water pump

Aftercooling System

Separate circuit aftercooling system (SCAC): no seawater circulating through the aftercooler