C18

Cat® C18 Diesel Fire Pump

THE RUNDOWN

Reliable, Quiet and Durable Power
World-class manufacturing capability and processes coupled with proven core engine designs assure reliability, quiet operation, and many hours of productive life.
World-class Product Support Offered Through Global Cat Dealer Network
  • Scheduled maintenance, including SOSSM 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
Power Rating
Maximum Power800hp
Rated Speed1500-2100 rpm
Minimum Power600hp
Emission Standards
EmissionsU.S. EPA Tier 3, Tier 2 or Non-certified emission standards for stationary emergency fire pump engines. FM Approved, UL Listed
General
Engine ConfigurationInline 6, 4-Stroke-Cycle Diesel
Bore5.7in
Stroke7.2in
Displacement1104.5in³
Compression Ratio16.3:1
AspirationTurbocharged Aftercooled (TA)
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length74.7in
Width42.6in
Height54.3in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments4306lb
Standard Equipment

Air Inlet System

  • Dual turbocharger: front and rear inlet 127.mm (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

Instrumentation

  • 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)

General

  • Vibration damper and guard
  • Lifting eyes
  • Automatic variable timing, electronic
  • Paint - fire pump red