New | Cat C18 ACERT Propulsion Engine (Tier 3)

The C18 ACERT marine propulsion engine has commercial application ratings of 475-725 mhp (469-715 bhp) at 1800-2100 rpm that meet U.S. EPA Tier 3, IMO II, and EU IW 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.

Power Rating
Power Range469-1001 bhp (350-747 bkW)
Engine Specifications
Speed Range1800-2300 rpm
ConfigurationIn-line 6, 4-Stroke-Cycle Diesel
AspirationTA, TTA
Bore5.7 in
Stroke7.2 in
Displacement1106.0 in3
Rotation (from flywheel end)Counterclockwise
EmissionsEPA Tier 3 Commercial, IMO II, EU IW
Dimensions & Weights
Minimum Length73.0 in
Maximum Length76.0 in
Minimum Width44.6 in
Maximum Width47.4 in
Minimum Height47.2 in
Maximum Height51.2 in
Minimum Dry Weight4000.0 lb

C18 Acert Commercial Propulsion Engines Now Incorporate A Separate Circuit Aftercooling System (scac) For All Configurations With A Through D Ratings

Epa Tier 3 Compliant, Imo Ii And Eu Iww Compliant

Heat Exchanger And Keel Cooled Options For All Ratings

Single Turbo Configurations For All Ratings

  • Competitive Size And Weight

All Major Mcs Type Approvals Available From Factory

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
MOUNTING SYSTEM
  • Front support - adjustable
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 EU STAGE IIIA AND CCNR STAGE II (E3 CYCLE) EMISSIONS STANDARDS.
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 +/-

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