Marine Power Systems

C18 Tier 3

< Back

Request A Quote
Extended Warranty and Support
Learn More
Calculate my Payment
  • Technical Information
  • Find Your Dealer
View Product Downloads
Yes, I would like to receive future marketing communications (such as email) from Caterpillar Inc., its affiliates and subsidiaries worldwide and the Caterpillar dealer network. Regardless of whether you decide to receive these marketing communications, Caterpillar will continue to send service/transactional messages, including those that have to do with any accounts that you may have with us.

Separate circuit aftercooling system

The primary advantage of the separate circuit aftercooling system (SCAC) is that no sea water circulates through the aftercooler

Emissions

EPA Tier 3 compliant, IMO II and EU IWW compliant

Cooling system

Heat exchanger and Keel cooled options for all ratings

Turbo Configurations

Single turbo configurations for all ratings

Competitive size and weight

Marine Certifications

All major MCS type approvals available from factory

Overview

C18 ACERT auxiliary/generator set engines 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 also 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. All major MCS type approvals are available from the factory.

Power Rating

Units:
Minimum Rating 624.0 BHP 465.0 bkW Less
Maximum Rating 803.0 BHP 599.0 bkW Less

Engine Specifications

Aspiration TA, TTA TA, TTA Less
Bore 5.7 in 145.0 mm Less
Configuration In-Line 6, 4-Stroke-Cycle Diesel In-Line 6, 4-Stroke-Cycle Diesel Less
Displacement 1106.0 in³ 18.1 l Less
Rotation from Flywheel End Counterclockwise Counterclockwise Less
Stroke 7.2 in 183.0 mm Less

Dimensions & Weights

Dry Weight 1950.0 lb 4299.0 kg Less
Height 51.2 in 1300.0 mm Less
Length 73.0 in 1854.0 mm Less
Width 44.6 in 1134.0 mm Less

C18 Tier 3 Standard Equipment

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

CONTROL SYSTEM
  • Programmable low idle
  • Electronic diagnostics and fault logging
  • Electronic fuel/air ratio control
  • Engine Protection Mode for extended ambient conditions - EPA Tier 3 Ratings Only
  • 70-pin customer connector
  • Three types of throttle inputs (primary/ secondary PWM, 0-5V, 4-20mA

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
  • Auxiliary water pump, gear driven
  • Sea water pump, bronze impeller, gear driven
  • SCAC and JW shunt tanks for maintaining proper pump inlet pressures

EXHAUST SYSTEM
  • 152 mm (6 in) round flanged outlet
  • Water-cooled exhaust manifold & turbocharger

FLYWHEELS & FLYWHEEL HOUSINGS
  • Flywheel Housing, SAE No. 0
  • Flywheel, 18 inch, 136 teeth
  • SAE standard rotation

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
  • Hydraulic Pump Drive
  • Crankshaft Pulleys
  • Front Stub Shaft
  • Front Enclosed Clutch

GENERAL
  • Front damper guard
  • Front service engine
  • Common electrical bonding point
  • Engine does not ship with zinc components
  • NOTE: These engines are for constant speed generator set applications only, and NOT to be used for variable speed applications

C18 Tier 3 Optional Equipment

EXHAUST SYSTEM
  • Dry Elbows
  • Water-Cooled Elbows
  • Flexible Fitting
  • Flange
  • Muffler
  • Muffler Spark Arresting

AIR INLET SYSTEM
  • Air Inlet Adapter

CHARGING SYSTEM
  • Battery Chargers
  • Charging Alternators
  • Alternator Mounting Group
  • Ammeter

CONTROL SYSTEM
  • MECP I - Marine Engine Control Panel
  • Caterpillar Alarm and Protection
  • Load Sharing Attachment

COOLING SYSTEM
  • Aux Expansion Flange Kit

FUEL SYSTEM
  • Duplex Fuel Filters
  • Fuel Cooler
  • Primary Fuel Filters
  • Flexible Fuel Lines

INSTRUMENTATION
  • Instrument Panels
  • OEM Wiring Harness
  • Gauges
  • Oil Level Sensor

LUBE SYSTEM
  • Duplex Oil Filters
  • Sump Pump

POWER TAKE-OFFS
  • Crankshaft Pulleys
  • Front Stub Shaft
  • Hydraulic Pump Drive Adapter
  • Front Enclosed Clutch

PROTECTION SYSTEM
  • Marine Classification Society and SOLAS

STARTING SYSTEM
  • Electric Starting Motors - Single 24 Volt
  • Air Starting Motor
  • Air Start Accessories
  • Starting Aids - JW Heaters
  • Battery Sets - 24 Volt - Dry

MOUNTING SYSTEM
  • Front Support
  • REAR ENGINE SUPPORT

PACKING
  • Engine Protective Cover
  • Storage Preservation
  • Export Packing

Cat Connect: Get More from Every Asset

  • INFORM : Remotely access equipment information so you can make more informed decisions
  • ADVISE : Receive clear predictive recommendation about your equipment from your Cat Dealer to reduce costs and increase revenue
  • PARTNER : Let your Cat® Dealer manage your equipment so you can focus on your business

Learn More