Cat C32 ACERT Marine Propulsion Engine (EPA Tier 3)
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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Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 660 - 1600 bhp (492 - 1193 bkW) | ||||
| Speed Range | text | 1600 - 2300 rpm | ||||
| Emissions | text | U.S. EPA Tier 3/ Tier 4, IMO II/III, EU Stage V |
Documents & Spec Sheets
C32 ACERT SCAC Tier 3 Propulsion Engine 1300 bhp WOSR 1800-2100 rpm, 1450 bhp WOSR 2100-2300 rpm
CM20210209-a2871-5f226
DownloadC32 Marine Propulsion Engine (IMO II) 969 bkW (1299 bhp) @ 1800-2100 rpm
CM20210304-12cf9-7f1ea
DownloadC32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 895 bkW @ 1800-2100 rpm
CM20210304-ac785-71fae
DownloadC32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 970 bkW @ 1800-2100 rpm
CM20210304-da1bc-1a2e0
DownloadC32 Marine Propulsion Engine (US EPA Tier 4 / IMO III) 1081 bkW @ 2050-2150 rpm
CM20210304-a12b3-0a491
DownloadFeatures & Benefits
Emissions
IMO II/EPA Tier 3 Compliant Ratings
Separate Circuit Aftercooling System (SCAC) for A-C ratings
No seawater circulating through the aftercooling system to prevent corrosion.
Seven Ratings with Wide Operating Speed Range (WOSR)
Full power & torque are available for a broader operating speed range. For example: With an A rating at 1800 rpm - you have full power from 1500 to 1800 rpm.
Extended Oil Change Intervals
A Ratings: 1000 hours, B Ratings: 750 hours, C Ratings: 500 hours
The Cat Global Dealer Network
Extensive service network of CAT dealers as well as unparalleled service from certified authorized marine dealers.
Durability
Proven engine operating history: performance iron with thousands of hours of validation testing for quality and durability
Reliability
Backed by Caterpillar's standard warranty
Complete Specifications
Power Rating
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Power Range | text | 660 - 1600 bhp (492 - 1193 bkW) | ||||
| Speed Range | text | 1600 - 2300 rpm | ||||
| Emissions | text | U.S. EPA Tier 3/ Tier 4, IMO II/III, EU Stage V | ||||
| Aspiration | text | Twin Turbocharged Aspiration | ||||
| Bore | measurement | 5.71 | in | 145.0 | mm | |
| Stroke | measurement | 6.38 | in | 162.0 | mm | |
| Displacement | measurement | 1959.0 | in³ | 32.1 | l | |
| Rotation from Flywheel End | text | Counterclockwise | ||||
| Configuration | text | V 12, 4-Stroke-Cycle Diesel | ||||
| Maximum Height | measurement | 62.5 | in | 1587.0 | mm | |
| Minimum Length | measurement | 77.8 | in | 2121.0 | mm | |
| Minimum Height | measurement | 60.9 | in | 1547.0 | mm | |
| Maximum Width | measurement | 60.17 | in | 1528.0 | mm | |
| Maximum Length | measurement | 83.5 | in | 2284.0 | mm | |
| Minimum Width | measurement | 60.17 | in | 1528.0 | mm |
Standard Equipment
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
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