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Overview

The Cat® G3406 Industrial Gas Engine is offered in ratings ranging from 160-242 bkW (215-325 bhp) @ 1800 rpm. These ratings are NSPS site compliant capable with customer-supplied aftertreatment. Some ratings also have standard emission settings available for export only. For specific emission information, please consult your local Cat Dealer.

Power Rating

Units:
Minimum Power 215.0 bhp 160.0 bkW Less
Maximum Power 325.0 bhp 215.0 bkW Less
Frequency 1800 rpm 1800 rpm Less

General

Bore 137 mm (5.4 in) 137 mm (5.4 in) Less
Stroke 165 mm (6.5 in) 165 mm (6.5 in) Less
Displacement 14 L (893 in³) 14 L (893 in³) Less
Aspiration Naturally Aspirated (NA), Turbocharged Aftercooled (TA) Naturally Aspirated (NA), Turbocharged Aftercooled (TA) Less
Engine Configuration Engine - Continuous Engine - Continuous Less

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

Weight, Net Dry 1362 kg (3000 lb) 1362 kg (3000 lb) Less
Height 1433 mm (56 in) 1433 mm (56 in) Less
Width 1270 mm (50 in) 1270 mm (50 in) Less
Length 1934 mm (76 in) 1934 mm (76 in) Less

Emissions

Ratings are NSPS site compliant capable with customer-supplied aftertreatment. Some ratings also have standard emission settings available for export only. For specific emission information, please refer to the engine spec sheet.

Engine Design

  • Proven reliability and durability
  • Ability to burn a wide spectrum of gaseous fuels
  • Robust diesel strength design prolongs life and lowers owning and operating costs
  • Broad operating speed range

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Quality

Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.

World-class Product Support Offered Through Global Cat Dealer Network

  • Scheduled maintenance, including S•O•SSM sample
  • Customer Support Agreements (CSA)
  • Caterpillar Extended Service Coverage (ESC)
  • Superior dealer service network
  • Extended dealer service network through the CatIndustrial Service Distributor (ISD) program

G3406 Standard Equipment

Air Inlet System
  • Air cleaner — heavy-duty
  • Air cleaner rain cap
  • Service indicator

Control System
  • Governor — Woodward PSG mechanical
  • Governor locking — positive control

Cooling System
  • Thermostats and housing
  • Jacket water pump
  • Aftercooler water pump
  • Aftercooler core

Exhaust System
  • Watercooled exhaust manifolds
  • Dry exhaust elbow

Flywheel & Flywheel Housing
  • SAE No. 1 flywheel
  • SAE No. 1 flywheel housing
  • SAE standard rotation

Fuel System
  • Gas pressure regulator
  • Natural gas carburetor

Ignition System
  • Altronic III ignition system

Instrumentation
  • Service meter

Lube System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Auxiliary oil reservoir
  • Oil pan — full sump
  • Oil filler in valve cover, dipstick — RH

Mounting System
  • Engine supports

Protection System
  • Shutoffs

General
  • Paint — Cat yellow
  • Crankshaft vibration damper and drive pulleys
  • Lifting eyes

G3406 Optional Equipment

Air Inlet System
  • Precleaner

Charging System
  • Battery chargers
  • Charging alternators
  • Charging alternators f/u/w c customer supplied shutoffs
  • Ammeter gauge
  • Ammeter gauge and wiring
  • Control mounting

Control System
  • PSG Woodward governor

Cooling System
  • Radiators
  • Non-sparking blower fan
  • Blower fans for customer supplied radiators
  • Fan drives for customer supplied radiators
  • ATAAC conversion
  • Aftercooler
  • Expansion tank
  • Heat exchangers

Exhaust System
  • Flexible fittings
  • Elbow
  • Flange
  • Pipe
  • Rain cap
  • Muffler

Fuel System
  • Fuel filter
  • Natural gas valve and jet kits

Ignition System
  • CSA shielded ignition
  • Wiring harness

Instrumentation
  • Gauges and instrument panels

Lube System
  • Auxiliary oil reservoir removal
  • Lubricating oil

Mounting System
  • Vibration isolators

Power Take-Offs
  • Auxiliary drive pulleys
  • Enclosed clutch and clutch support
  • Front stub shaft and flywheel stub shaft

Protection System
  • Gas valves

Starting System
  • Air starting motor
  • Electric air start control
  • Air pressure regulator
  • Air silencer
  • Electric starting motor— single 12- and 24-volt
  • Starting aids
  • Battery sets, cables, and rack

General
  • Damper guard

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