New | Cat® C18 ACERT™ Diesel Fire Pump

Cat® C18 ACERT™ Fire Pump Engines, with ratings: 447-597 bkW (600-800 bhp)@ 1750-2100 rpm, meet U.S. EPA Tier 3 or U.S. EPA Tier 2 emission standards for stationary emergency fire pump engines. Rating: 522 bkW (700 bhp) @ 1500 rpm is Non-certified. All ratings are FM Approved and UL Listed. Starting on demand is a must for a fire pump engine - always. Cat® fire pump engines have a reputation for reliable starts and long efficient service. The C18 ACERT is the newest addition to the Cat fire pump engine line and continues the strong legacy of dependable starts and long, durable life.

Power Rating
Minimum Power600.0 bhp
Maximum Power800.0 bhp
Rated Speed1500-2100 rpm
Emission Standards
EmissionsU.S. EPA Tier 3, Tier 2 or Non-certified emission standards for stationary emergency fire pump engines. FM Approved, UL Listed
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore145 mm (5.71 in)
Stroke183 mm (7.2 in)
Displacement18.1 L (1104.53 in³)
AspirationTurbocharged Aftercooled (TA)
Compression Ratio16.3:1
Rotation (from flywheel end)Counterclockwise
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Width1081.7 mm (42.6 in)
Height1379.6 mm (54.3 in)
Length1889 mm (74.37 in)
Weight - Approximate, Net Dry (Basic Operating Engine Without Optional Attachments)1953 kg (4306 lb)

Ratings--447 Bkw (600 Bhp) @ 1750, 1900, 2100 Rpm And 522 Bkw (700 Bhp) @ 1750, 1900 And 2100 Rpm--meet U.s. Epa Tier 3 Emission Standards For Stationary Emergency Fire Pump Engines. Fm Approved. Ul Listed - U.s. And Canada. Meets Nfpa 20 Standards.

Ratings--597 Bkw (800 Bhp) @ 1750, 1900 And 2100 Rpm--meet U.s. Epa Tier 2 Emission Standards For Stationary Emergency Fire Pump Engines. Fm Approved. Ul Listed - U.s. And Canada. Meets Nfpa 20 Standards.

World-class Manufacturing Capability And Processes Coupled With Proven Core Engine Designs Assure Reliability, Quiet Operation, And Many Hours Of Productive Life.

Every Cat Engine Is Manufactured To Stringent Standards In Order To Assure Customer Satisfaction.

  • scheduled Maintenance, Including S•o•ssm Sample
  • customer Support Agreements (csa)
  • caterpillar Extended Service Coverage (esc)
  • superior Dealer Service Network
  • extended Dealer Service Network Through The Cat Industrial Service Distributor (isd) Program

Air Inlet System
  • Dual turbocharger: front and rear inlet (5.0 in)
  • Separate Circuit Aftercooled (SCAC)
  • Optional Air Cleaner - dual element, installed
Charging System
  • Charging alternator 24 volt, 50 amp
Control System
  • Dual Electronic Control Units (ECU), primary and secondary with auto switching capability
  • Electronic governing, PTO speed control
  • Cold mode start strategy
  • Automatic altitude compensation
  • Power compensation for fuel temperature
  • Programmable low and high idle and top engine limit
  • Electronic diagnostics and fault logging
  • Engine monitoring and protection system (speeds, temperature, pressure)
  • SAE J1939 broadcast (diagnostic, engine status, and control)
Cooling System
  • Thermostats and housing, vertical outlet
  • Jacket water pump, gear driven, centrifugal
  • Heat exchanger installed
  • Expansion tank
  • FM Required Raw Water Cooling Loops: 1.5" iron, horizontal or vertical, 1.5" 316 stainless steel, horizontal or vertical, 2" iron, horizontal or vertical (2100 rated rpm only), or 2" 316 stainless steel, horizontal or vertical (2100 rated rpm only)
Exhaust System
  • Exhaust manifold, dry
  • Dual turbo: exhaust elbow, dry 203 mm (8 in)
Flywheels and Flywheel Housing
  • SAE No. 1 flywheel
  • SAE No. 1 flywheel housing
  • SAE standard rotation
Fuel System
  • Electronic unit injector
  • Fuel filter, secondary (2 micron)
  • Fuel transfer pump
  • Fuel sample valve, mounted on fuel filter base
  • Primary fuel filter / water separator
  • Digital Display mounted in Junction Box, LH side of engine. Displays: Oil pressure, Fuel pressure, Charging voltage, Coolant temperature, Raw water temperature, and Engine hours
Lube System
  • Crankcase breather, front valve cover
  • Oil cooler
  • Lube oil filter
  • Front sump oil pan
  • Oil filler
  • Oil dipstick
  • Oil pump
Mounting System
  • Front and rear support
Power Take-Offs
  • Flywheel stub shaft
Protection System
  • Stop-Start System, automatic (compatible with NFPA 20 requirements, able to be energized from either of two battery sources and capable of manual starter actuation)
Starting System
  • 24 volt, LH electric starting motor
  • Jacket water heater (3 kW, 120-240 volt)
  • Vibration damper and guard
  • Lifting eyes
  • Automatic variable timing, electronic
  • Paint - fire pump red



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With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
Mark Cripe
Helix Electric

San Diego - Power
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Phillip J. Smith (PJ)
Service Manager - CSA Group/Truck Shop
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Field Service Manager
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Rental Department Manager
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Product Support Sales &
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Hawaii – Power
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Power Systems Sales Manager
808.676.0322 office
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Rental Developer
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Guam – Power
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Power Systems Rental &
Sales Representative
671.649.4241 office
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Jimmy Cruz
Engine Service Manager
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