Minimum Rating

624 BHP

Maximum Rating

803 BHP

Aspiration

TA, TTA

Cat C18 Auxiliary/Generator Set Engine (EPA Tier 3)

ABOUT THE cat C18

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.

Add the CAT C18 AUXILIARY GENERATOR SET ENGINE EPA TIER 3 Model to the Cart
Minimum Rating
624BHP
Maximum Rating
803BHP
Aspiration
TA, TTA
Bore
5.7in
Displacement
1106in³
Configuration
In-Line 6, 4-Stroke-Cycle Diesel
Stroke
7.2in
Rotation from Flywheel End
Counterclockwise
Length
73in
Height
51.2in
Dry Weight
1950lb
Width
44.6in
  • 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
  • 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

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* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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*Offer valid from October 1, 2024 through December 31, 2024. Offer only available on select new Cat® machines listed in our Heavy Equipment Promotion page. Purchase must occur by December 31, 2024. Offer subject to machine availability. Offer is subject to credit approval by Caterpillar Financial Services Corporation for US customers, and Caterpillar Financial Services Limited for Canadian customers. Not all customers will qualify. The offered Cat Customer Value Agreement (CVA) includes 6 maintenance parts kits; S∙O∙SSM; and 36 month VisionLink® ConnectPro. The maintenance parts cover the first 3,000 hours^ (estimated 3 years) of machine utilization. Each kit contains one set of parts for regular planned maintenance under normal operating conditions. In some severe applications where maintenance parts need to be replaced more frequently, additional parts will be at customer’s expense. Offer excludes additional maintenance parts, dealer labor, wear parts, and fluids. Offer also includes a 36 month/5000 hour (whichever occurs first) Powertrain, Hydraulics and Technology Equipment Protection Plan (EPP). In some areas, EPP might be sold separately from the CVA. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply. Contact your Cat dealer for details.

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