G3412 | 350kW-500kW Gas Generator

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Maximum Standby Rating500 ekW @0.8pf
Fuel TypeNatural Gas
Emissions/Fuel StrategyU.S. EPA Certified for Emergency Only Stationary Genset
Frequency60 Hz
Caterpillar is leading the power generation marketplace with Fast Response generator sets engineered to deliver unmatched performance, reliability, and cost-effectiveness.


Maximum Standby Rating500 ekW @0.8pf
Fuel TypeNatural Gas
Emissions/Fuel StrategyU.S. EPA Certified for Emergency Only Stationary Genset
Frequency60 Hz
RPM1800 rpm
Engine ModelG3412
Displacement1649 in³ (27 l)
Bore5.4 in (137 mm)
Stroke6 in (152 mm)
Length165 in (1498 mm)
Width85.25 in (2189 mm)
Height86 in (2165 mm)
Dry Weight - Genset14700 lb (6700 kg)

Benefits and Features

  • Robust high speed block design provides prolonged life and lower owning operationg costs
  • Designed for maximum performance on low pressure pipeline natural gas
  • Simple open chamber combustion system for reliability and fuel flexibility
  • Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
  • One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection

  • EPA Certified from the factoryfor use in Emergency applications

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

  • Designed to operate in standard ambient temperatures up to 43°C (110°F)Contact your Cat Dealer for specific ambient and altitude capabilities

  • Designed to match performance and output characteristics of Caterpillar gas engines
  • Industry leading mechanical and electrical design
  • High efficiency

  • Wide range of bolt-on system expansion attachments
  • Factory designed and tested
  • Flexible packaging options for easy and cost effective installation

  • Field proven in a wide range of applications worldwide
  • Fully prototype tested
  • Certified torsional vibration analysis available

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Standard Equipment

  • Two-element single-stage air cleaner with enclosure and service indicator
  • Dual air cleaners, 1 per side, with service indicator
  • Package mounted radiator
  • LH or RG connections when radiator is not selected
  • Engine driven pumps for jacket water and separate circuit aftercooler
  • Jacket water and SCAC thermostats
  • Pipeline Natural Gas: 800-1000 BTU/scf and 70-100 Methane Number
  • Gas Train: NFPA37 and CSA B149.3
  • Dry exhaust manifolds, insulated and shielded
  • Engine-installed electronic control valve
  • Gas pressure regulator
  • 24V DC energized-to-run (ETR) gas shutoff valve
  • Paint- Caterpillar Yellow with gloss black rails and radiators
  • Operation and maintenance manuals
  • RH Service
  • Parts book
  • Crankshaft vibration damper and guard
  • Cartridge style oil filter
  • Gear type lube oil pump
  • Caterpillar's Digital Voltage Regulator (CDVR) including reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, and a min/max exciter
  • Anti-condensation space heater
  • Permanent Magnet Excitiation
  • Winding temperature detectors
  • Electronic Ignition System (controlled by ADEM A4)
  • Individual Cylinder Detonation Sensitive Timing (DST)
  • Electric Starter
  • 24V DC starting motors

Optional Equipment

  • Air cleaner with precleaner
  • S LSI
  • Frame mounting
  • Right, left, rear mounted
  • Local alarm module
  • Local PC monitoring
  • Remote PC monitoring
  • Remote annunciator
  • Inlet/Outlet connections
  • Coolant level drain line with valves, fan with guard
  • Flexible fittings
  • 15, 25 dBA Attenuation
  • Digital diagnostic tool
  • Tool set
  • US AID emblem
  • Cable access box
  • Bearing temperature detectors
  • Battery with cables and rack (shipped loose)
  • 10A, 24VDC battery charger
  • Jacket water heater