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Cat C18 ACERT™ Fire Pump Engines. Ratings: 447-597 bkW (600-800 bhp)@ 1800-1900 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. FM Approved. UL Listed.

Engine Specifications

  • Minimum Rating 600.0 BHP 447.0 bkW
  • Maximum Rating 800.0 BHP 597.0 bkW
  • Emissions U.S. EPA Tier, Tier 2 or non-certified U.S. EPA Tier, Tier 2 or non-certified
  • Rated Speed 1750.0 r/min 1750.0 r/min
  • Bore 5.7 in 145.0 mm
  • Stroke 7.2 in 183.0 mm
  • Displacement 1106.0 in³ 18.0 l
  • Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled
  • Engine Weight - Net Dry 3900.0 lb 1769.0 kg
  • Oil Change Interval 500.0 h 500.0 h
  • Rotation from Flywheel End Counterclockwise Counterclockwise
  • Flywheel and Flywheel Housing SAE No. 1 SAE No. 1
  • Flywheel Teeth 113 113

Capacity for Liquids

  • Lube Oil System - Refill 10.0 gal (US) 37.7 l
  • Cooling System - Engine 13.3 gal (US) 50.0 l


  • Length 74.4 in 1889.0 mm
  • Width 43.0 in 1091.0 mm
  • Height 54.3 in 1380.0 mm


Ratings--447 bkW (600 bhp) @ 1750, 1900, 2100 rpm and 522 bkW (700 bhp) @ 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 3100 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.

C18 ACERT™ Standard Equipment

Air Inlet System

  • Dual turbocharger: front and rear inlet (5.0 in)
  • Separate Circuit Aftercooled (SCAC)

Charging System

  • Charging alternator 24 volt, 50 amp

Control System

  • Dual Electronic Control Units (ECU), primary and secondary
  • Electronic governing, PTO speed control
  • Programmable ratings
  • Cold start capability to -20° C (-4° F)
  • Automatic altitude compensation
  • Power compensation for fuel temperature
  • Programmable low and high idle and total engine limit
  • Electronic diagnostics and fault logging
  • Engine monitoring system SAE J1939 broadcast and control

Cooling System

  • Thermostats and housing, vertical outlet
  • Jacket water pump, centrifugal
  • Heat exchanger installed
  • Expansion tank

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
  • Power take-off (PTO) flywheel stub shaft

Fuel System

  • Electronic unit injector
  • Fuel filter, secondary (2 micron high performance)
  • Fuel transfer pump
  • Fuel priming pump
  • Fuel sample valve, mounted on fuel filter base
  • Primary fuel filter
  • Water separator


  • Instrument panel, LH
  • Engine oil pressure gauge
  • Voltmeter gauge
  • Water temperature gauge
  • Tachometer/engine hour meter

Lube System

  • Open crankcase ventilation system
  • Oil cooler
  • Lube oil filter
  • Front sump oil pan
  • Oil filler
  • Oil dipstick
  • Oil pump

Mounting System

  • Front and rear support

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
  • Lifting eyes
  • Automatic variable timing, electronic
  • Electronic installation kit, 70 pin connector (connectors, pins, sockets)

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