Cat® G3408 Industrial Gas Engine. Ratings: 190-317 bkW (255-425 bhp) @ 1800 rpm and 249 bkW (332 bhp) @ 1500 rpm 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.
General
- Bore
- 137 mm (5.4 in)
- Stroke
- 152 mm (6.0 in)
- Displacement
- 18 L (1099 in³)
- Engine Configuration
- Engine - Continuous
- Aspiration
- Naturally Aspirated (NA), Turbocharged Aftercooled (TA)
Power Rating
- Minimum Power
- 255HP
- Maximum Power
- 425HP
- Frequency
- 1500 & 1800 rpm
Engine Dimensions - Approximate
- Weight - Net Dry
- 2245 kg (4950 lb)
- Length
- 1756 mm (69.1 in)
- Height
- 1758 mm (69.2 in)
- Width
- 1563 mm (61.5 in)
Standard Equipment:
- Air Inlet System
- Air cleaner — single element with service indicator
- Control System
- Governor — Woodward PSG mechanical
- Governor control — positive locking
- 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. 0 flywheel
- SAE No. 0 flywheel housing
- SAE standard rotation
- Fuel System
- Gas pressure regulator
- Natural gas carburetor
- Ignition System
- Digital ignition system
- Instrumentation
- Service meter
- Lube System
- Crankcase breather — top mounted
- Oil cooler
- Oil filter — RH
- Auxiliary oil reservoir
- Rear sump oil pan
- Oil filler in valve cover and dipstick — RH
- Mounting System
- Engine supports
- Protection System
- Shutoffs
- General
- Paint — Cat yellow
- Crankshaft vibration damper and drive pulleys
- Lifting eyes
Optional Equipment:
- Air Inlet System
- Air cleaner — dual element
- Air inlet adapter
- Precleaner
- Air cleaner rain cap
- Charging System
- Battery chargers
- Charging alternators
- Ammeter gauge
- Ammeter gauge and wiring
- Control mounting
- Control System
- EG3P/2301A speed control governor
- PSG electric governor
- PSG pneumatic governor
- Cooling System
- Radiators
- Non-sparking blower fan
- Blower fan and fan drives for customer suppliedradiators
- ATAAC conversion
- Aftercooler
- Expansion tank
- Heat exchanger
- Exhaust System
- Flexible fittings
- Elbows
- Flanges
- Rain caps
- Mufflers
- Exhaust manifold
- Fuel System
- Dual gas regulator
- Low energy fuel carburetor
- Low pressure gas conversion
- Propane and natural gas valve and jet kits
- Fuel filter
- Ignition System
- CSA ignition
- Ignition ground wiring harness
- Power supply — digital ignition system
- 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
- Clutch support
- Front stub shaf
- Flywheel stub shaft
- Pulley removal
- Protection System
- Gas valves
- Starting System
- Air starting motor
- Electric air start control
- Air pressure regulator
- Air silencer
- Electric starting motor — single 24-volt
- Starting aids
- Battery sets (24-volt dry), cables, and rack
Specifications
General
- Bore
- 137 mm (5.4 in)
- Stroke
- 152 mm (6.0 in)
- Displacement
- 18 L (1099 in³)
- Engine Configuration
- Engine - Continuous
- Aspiration
- Naturally Aspirated (NA), Turbocharged Aftercooled (TA)
Power Rating
- Minimum Power
- 255HP
- Maximum Power
- 425HP
- Frequency
- 1500 & 1800 rpm
Engine Dimensions - Approximate
- Weight - Net Dry
- 2245 kg (4950 lb)
- Length
- 1756 mm (69.1 in)
- Height
- 1758 mm (69.2 in)
- Width
- 1563 mm (61.5 in)
Standard/Optional Features
Standard Equipment:
- Air Inlet System
- Air cleaner — single element with service indicator
- Control System
- Governor — Woodward PSG mechanical
- Governor control — positive locking
- 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. 0 flywheel
- SAE No. 0 flywheel housing
- SAE standard rotation
- Fuel System
- Gas pressure regulator
- Natural gas carburetor
- Ignition System
- Digital ignition system
- Instrumentation
- Service meter
- Lube System
- Crankcase breather — top mounted
- Oil cooler
- Oil filter — RH
- Auxiliary oil reservoir
- Rear sump oil pan
- Oil filler in valve cover and dipstick — RH
- Mounting System
- Engine supports
- Protection System
- Shutoffs
- General
- Paint — Cat yellow
- Crankshaft vibration damper and drive pulleys
- Lifting eyes
Optional Equipment:
- Air Inlet System
- Air cleaner — dual element
- Air inlet adapter
- Precleaner
- Air cleaner rain cap
- Charging System
- Battery chargers
- Charging alternators
- Ammeter gauge
- Ammeter gauge and wiring
- Control mounting
- Control System
- EG3P/2301A speed control governor
- PSG electric governor
- PSG pneumatic governor
- Cooling System
- Radiators
- Non-sparking blower fan
- Blower fan and fan drives for customer suppliedradiators
- ATAAC conversion
- Aftercooler
- Expansion tank
- Heat exchanger
- Exhaust System
- Flexible fittings
- Elbows
- Flanges
- Rain caps
- Mufflers
- Exhaust manifold
- Fuel System
- Dual gas regulator
- Low energy fuel carburetor
- Low pressure gas conversion
- Propane and natural gas valve and jet kits
- Fuel filter
- Ignition System
- CSA ignition
- Ignition ground wiring harness
- Power supply — digital ignition system
- 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
- Clutch support
- Front stub shaf
- Flywheel stub shaft
- Pulley removal
- Protection System
- Gas valves
- Starting System
- Air starting motor
- Electric air start control
- Air pressure regulator
- Air silencer
- Electric starting motor — single 24-volt
- Starting aids
- Battery sets (24-volt dry), cables, and rack