Diesel fire pumps

3412C

The Cat® 3412C Industrial Diesel Fire Pump Engine is offered in ratings ranging from 476-551 kW (638-739 hp) @ 1750-2100 rpm. These ratings are non-certified and are available for global non-regulated areas. They are not FM Approved and not 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.

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Power Rating
Maximum Power739 hp
Rated Speed1750-2100 rpm
Minimum Power638 hp
Emission Standards
EmissionsNon-Certified. Available for global non-regulated areas. Not FM Approved, Not UL Listed
General
Engine ConfigurationV-12, 4-Stroke-Cycle Diesel
Bore5.4 in
Stroke6 in
Displacement1648 in³
Compression Ratio14.5:1
AspirationTurbocharged Aftercooled (TA)
Rotation from Flywheel EndCounterclockwise
Aftertreatment-
Engine Dimensions - Approximate
Length78.7 in
Height55.6 in
Weight - Net Dry - Basic Operating Engine Without Optional Attachments5686 lb

Air Inlet System

  • Air cleaner, regular duty with service indicators
  • Turbocharged

Cooling System

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

Control System

  • Charging alternator 24 volt, 35 amp
  • Governor control
  • Hydra-mechanical governor

Exhaust System

  • Exhaust manifold
  • Exhaust elbow, dry. 203 mm (8 in) on all Turbocharged engines and Turbocharged Aftercooled with wet exhaust. 152 mm (6 in) on Turbocharged Aftercooled with dry manifolds.

Flywheels & Flywheel Housings

  • SAE No. 0 flywheel
  • SAE No. 0 flywheel housing
  • SAE standard rotation

Fuel System

  • Fuel filter
  • Fuel transfer pump
  • Primary fuel filter
  • Fuel priming pump

Instrumentation

  • Instrument panel, LH
  • Engine oil pressure gauge
  • Fuel pressure gauge
  • Water temperature gauge
  • Tachometer

Lube System

  • Crankcase breather, top mounted
  • Oil cooler
  • Oil filler in valve cover and dipstick, both RH
  • Lube oil filter
  • Rear sump oil pan

Mounting System

  • Supports

Power Take Off

  • Power take-off (PTO) 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 (6 kW, 240-480 volt)

General

  • Paint: Firepump Red
  • Vibration damper and guard
  • Lifting eyes

Need installed dimensions with enclosure and tank? See Model Configurations