Cat® 3412C Fire Pump

Cat® 3412C Fire Pump

Cat® 3412C Industrial Diesel Fire Pump Engines, with ratings: 476-551 bkW (638-739 bhp) @ 1750-2100 rpm, 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. The Cat line of fire engine pumps covers a wide range of installations.

Power Rating

Minimum Power
Maximum Power
Rated Speed
1750-2100 rpm

Emission Standards

Non-Certified. Available for global non-regulated areas. Not FM Approved, Not UL Listed


Engine Configuration
V-12, 4-Stroke-Cycle Diesel
137.2 mm (5.4 in)
152.4 mm (6.0 in)
27 L (1648 in³)
Turbocharged Aftercooled (TA)
Compression Ratio
Rotation (from flywheel end)

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

1413.2 mm (55.6 in)
1999.8 mm (78.7 in)
Weight - Approximate, Net Dry (Basic Operating Engine Without Optional Attachments)
2579 kg (5686 lb)

Standard Equipment

  • 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