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High Performance Propulsion Engines

Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to yachts and sport fishers, Cat and MaK engines have demonstrated their efficiency countless times. With remarkable reliability and durability, these engines will exceed your expectations for decades.

Cat C18 ACERT High Performance Propulsion Engine (Tier 3)

The C18 ACERT marine propulsion engine has high performance commercial application ratings of 814-1015 mhp (803-1001 bhp) at 2100-2300 rpm that meet U.S. EPA Tier 3, IMO II, and EU Stage IIIA emissions regulations. In addition to meeting the stricter EPA Tier 3 emissions, this engine now offers a fresh water aftercooled option for the commercial propulsion and auxiliary engines and genset packages. From fishing to offshore and everything in between, you can be confident that we have the solution to fit your needs.

  • Specification Summary

  • Power Range 814-1015 mhp, 803-1001 bhp, 599-747 bkW
  • Speed Range 2100-2300 rpm
  • Configuration In-line 6, 4-Stroke-Cycle Diesel
  • Aspiration TA,TTA

Product Details

Ratings

Power Range 814-1015 mhp, 803-1001 bhp, 599-747 bkW

Engine

Speed Range 2100-2300 rpm
Emissions EPA Tier 3, IMO II, EU Stage IIIA
Aspiration TA,TTA
Bore 145.0 mm
Stroke 183.0 mm
Displacement 18.1 L
Rotation (from flywheel end) Counterclockwise
Configuration In-line 6, 4-Stroke-Cycle Diesel

Dimensions & Weights

Minimum Dry Weight 1814.0 kg
Maximum Dry Weight 1950.0 kg
Minimum Length 1854.0 mm
Maximum Length 1931.0 mm
Minimum Height 1198.0 mm
Maximum Height 1300.0 mm
Minimum Width 1134.0 mm
Maximum Width 1204.0 mm
  • AIR INLET SYSTEM
    •  Separate circuit after-cooled (SCAC)
    •  Open Crankcase Ventilation (OCV) system
    •  Turbocharger, jacket water cooled
    •  Turbocharger inlet, 152 mm (6 in) OD straight connection
  • COOLING SYSTEM
    •  Separate Circuit After-Cooling (SCAC) for both HEX and Keel cooled engines
    •  Engine JW and SCAC Shell & Tube Heat Exchangers for HEX cooled engines
    •  SCAC pump, gear driven, for HEX cooled engines only
    •  Jacket water pump, gear driven
    •  Sea water pump, bronze impeller, gear driven
    •  SCAC and JW shunt tanks for maintaining proper pump inlet pressures
  • EXHAUST SYSTEM
    •  Water-cooled exhaust manifold & turbocharger
    •  152 mm (6 in) round flanged outlet
  • FLYWHEELS & FLYWHEEL HOUSINGS
    •  Flywheel Housing, SAE No. 0
    •  Flywheel, 18 inch, 136 teeth
    •  SAE standard rotation
    •  SAE No. 1, Flywheel: 14 inch, 113 teeth
  • FUEL SYSTEM
    •  Front service simplex fuel system
    •  Fuel transfer pump, gear driven
    •  Manual fuel priming pump
    •  Hybrid fuel line design
  • LUBE SYSTEM
    •  Front service simplex oil system
    •  Center sump oil pan:
    •  Front and top service oil filler locations
    •  Front service dipstick
    •  Oil pump, gear driven
  • POWER TAKE-OFFS
    •  Poly-V groove for alternator drive
    •  NOTE: There are no standard power take-offs available
  • GENERAL
    •  Front damper guard
    •  Front service engine
    •  Common electrical bonding point
    •  Engine does not ship with zinc components
    •  Engine is certified to D2/E2 emissions cycles
    •  CERTIFIED TO 2013 EPA TIER 3 AND IMO II MARINE COMMERCIAL PROPULSION (E3 CYCLE) EMISSION STANDARDS
    •  CERTIFIED TO EU STAGE IIIA AND CCNR STAGE II (E3 CYCLE) EMISSIONS STANDARDS.
    •  NOTE: Ratings listed below can also be used in Recreational / Pleasure Craft applications.
  • CONTROL SYSTEM
    •  Programmable low idle
    •  WOSR (Wide Operating Speed Range) available for EPA Tier 3 - B and C Ratings
    •  Adjustable High Idle (TEL) - EPA Tier 3 WOSR Ratings Only
    •  Electronic diagnostics and fault logging
    •  Engine and transmission monitoring (speed, temperature, pressure)
    •  Electronic fuel/air ratio contro
    •  Engine Protection Mode for extended ambient conditions - EPA Tier 3 Ratings Only
    •  Torque Limiting functionality for WOSR ratings only
    •  70-pin customer connector
    •  Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA +/-
  • EXHAUST SYSTEM
    •  Dry Elbows
    •  Water-Cooled Elbows
    •  Flexible Fitting
    •  Flange
    •  Muffler
    •  Muffler Spark Arresting
  • Dry Elbows
    • Water-Cooled Elbows
      • Flexible Fitting
        • Flange
          • Muffler
            • Muffler Spark Arresting
              • CHARGING SYSTEM
                •  Battery Chargers
                •  Charging Alternators
                •  Alternator Mounting Group
                •  Ammeter
              • CONTROL SYSTEM
                •  MECP I
                •  CATERPILLAR ALARM AND PROTECTION
              • COOLING SYSTEM
                •  AUX EXPANSION TANK FLANGE KIT
              • FUEL SYSTEM
                •  Duplex Fuel Filters
                •  Flexible Fuel Lines
                •  Fuel Cooler
                •  Primary Fuel Filters
              • INSTRUMENTATION
                •  Instrument Panels
                •  OEM Wiring Harness
                •  Engine to Engine Harness
                •  Gauges
                •  Transmission Sensors
                •  Oil Level Sensor
              • LUBE SYSTEM
                •  Duplex Oil Filters
                •  Transmission Oil Cooler
                •  Sump Pump
              • Duplex Oil Filters
                • Transmission Oil Cooler
                  • Sump Pump
                    • MOUNTING SYSTEM
                      •  Vibration Isolators
                      •  Front Support
                      •  Rear Support
                    • POWER TAKE-OFFS
                      •  NOTE: PTO OPTIONS REQUIRE TORSIONAL VIBRATION ANALYSIS
                      •  Crankshaft Pulleys
                      •  Front Stub Shaft
                      •  Hydraulic Pump Drive Adapter
                      •  Front Enclosed Clutch
                    • PROTECTION SYSTEM
                      •  Marine Classification Society and SOLAS
                      •  Marine Classification Society and Fire Resistance
                    • Marine Classification Society and SOLAS
                      • Marine Classification Society and Fire Resistance
                        • STARTING SYSTEM
                          •  STARTING SYSTEM Electric Starting Motors - Single 24 Volt
                          •  Air Starting Motor
                          •  Air Start Accessories
                          •  Starting Aids - JW Heaters
                          •  Battery Sets - 24 Volt - Dry
                        Built for it