Specifications

G3408C

Specifications

Minimum Rating	317 bkW425 BHP
Maximum Rating	317 bkW425 BHP
Emissions	NSPS Site Compliant Capable or Non-regulated
Displacement	18 l1099 in³
Compression Ratio	8.5:1
Aspiration	Turbocharged-Aftercooled
Rotation from Flywheel End	Counterclockwise
Flywheel and Flywheel Housing	SAE No. 0
Flywheel Teeth	136
Weight - Dry	2245 kg4950 lb
Oil Change Interval	750 hours
Ignition, Protection	Cat EIS
Stroke	152 mm6 in
Bore	137 mm5.4 in
Cooling System	54.9 l14.5 gal (US)
Lube Oil System - Refill	147.63 l39 gal (US)

G3408C Standard Equipment

Air Inlet System
- Air cleaner — single element with service indicator

Control System
- Electronic governor
- Air/fuel ratio 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. 0 flywheel
- SAE No. 0 flywheel housing
- SAE standard rotation

Fuel System
- Gas pressure regulator (1.5 to 5 psi gas supply required)
- Natural gas carburetor

Ignition System
- Cat Electronic Ignition System (EIS) with detonation sensitive timing

Instrumentation
- Service meter

Lube System
- Crankcase breather — top mounted
- Oil cooler
- Oil filter — RH
- Oil pan — deep sump
- Oil filler — RH in valve cover and RH dipstick

Mounting System
- Engine supports

Protection System
- Detonation sensitive timing control
- Shutoff

General
- Paint — Cat yellow
- Crankshaft vibration damper and pulleys
- Lifting eyes
- Cylinder block inspection covers

G3408C Optional Equipment

Air Inlet System
- Air cleaner — two-stage
- Air inlet adapter
- Precleaner
- Air cleaner rain cap

Charging System
- Battery chargers
- Charging alternators
- Ammeter gauge
- Ammeter gauge and wiring
- Control mounting

Cooling System
- Radiators
- Blower fan and fan drives for customer suppliedradiators
- Expansion tank
- Heat exchangers

Exhaust System
- Flexible fittings
- Elbows
- Flanges
- Rain caps
- Mufflers
- Exhaust manifold — instrument holes at each port

Fuel System
- Dual gas regulator
- Carburetor kits
- Fuel filter

Ignition System
- CSA ignition
- Ignition ground wiring harness
- Power supply

Instrumentation
- Alarm module
- Gauges and instrument panels

Mounting System
- Vibration isolators

Power Take-offs
- Auxiliary drive pulleys
- Enclosed clutch and clutch support
- Front stub shaft
- Flywheel stub shaft
- Pulley removal

Protection System
- Gas valves
- Status control box interconnect wiring harness

Starting System
- Air starting motor
- Air pressure regulator
- Air silencer
- Electric start control
- Electric starting motors — single 24V
- Starting aids
- Battery sets — (24V dry), cables, and rack

General
- Special paint

Engine Design

Engine Design

Emissions

Emissions

Lean Burn Engine Technology

Lean Burn Engine Technology

Cat® Electronic Ignition System (EIS)

Cat® Electronic Ignition System (EIS)

Ease of Operation

Ease of Operation

Full Range of Attachments

Full Range of Attachments

Testing

Testing

Gas Engine Rating Pro

Gas Engine Rating Pro

Product Support Offered Through Global Cat Dealer

Product Support Offered Through Global Cat Dealer

Over 80 Years of Engine Manufacturing Experience

Over 80 Years of Engine Manufacturing Experience

Web Site

Web Site

Specifications

Minimum Rating	317 bkW425 BHP
Maximum Rating	317 bkW425 BHP
Emissions	NSPS Site Compliant Capable or Non-regulated
Displacement	18 l1099 in³
Compression Ratio	8.5:1
Aspiration	Turbocharged-Aftercooled
Rotation from Flywheel End	Counterclockwise
Flywheel and Flywheel Housing	SAE No. 0
Flywheel Teeth	136
Weight - Dry	2245 kg4950 lb
Oil Change Interval	750 hours
Ignition, Protection	Cat EIS
Stroke	152 mm6 in
Bore	137 mm5.4 in
Cooling System	54.9 l14.5 gal (US)
Lube Oil System - Refill	147.63 l39 gal (US)

Equipment

G3408C Standard Equipment

Air Inlet System
- Air cleaner — single element with service indicator

Control System
- Electronic governor
- Air/fuel ratio 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. 0 flywheel
- SAE No. 0 flywheel housing
- SAE standard rotation

Fuel System
- Gas pressure regulator (1.5 to 5 psi gas supply required)
- Natural gas carburetor

Ignition System
- Cat Electronic Ignition System (EIS) with detonation sensitive timing

Instrumentation
- Service meter

Lube System
- Crankcase breather — top mounted
- Oil cooler
- Oil filter — RH
- Oil pan — deep sump
- Oil filler — RH in valve cover and RH dipstick

Mounting System
- Engine supports

Protection System
- Detonation sensitive timing control
- Shutoff

General
- Paint — Cat yellow
- Crankshaft vibration damper and pulleys
- Lifting eyes
- Cylinder block inspection covers

G3408C Optional Equipment

Air Inlet System
- Air cleaner — two-stage
- Air inlet adapter
- Precleaner
- Air cleaner rain cap

Charging System
- Battery chargers
- Charging alternators
- Ammeter gauge
- Ammeter gauge and wiring
- Control mounting

Cooling System
- Radiators
- Blower fan and fan drives for customer suppliedradiators
- Expansion tank
- Heat exchangers

Exhaust System
- Flexible fittings
- Elbows
- Flanges
- Rain caps
- Mufflers
- Exhaust manifold — instrument holes at each port

Fuel System
- Dual gas regulator
- Carburetor kits
- Fuel filter

Ignition System
- CSA ignition
- Ignition ground wiring harness
- Power supply

Instrumentation
- Alarm module
- Gauges and instrument panels

Mounting System
- Vibration isolators

Power Take-offs
- Auxiliary drive pulleys
- Enclosed clutch and clutch support
- Front stub shaft
- Flywheel stub shaft
- Pulley removal

Protection System
- Gas valves
- Status control box interconnect wiring harness

Starting System
- Air starting motor
- Air pressure regulator
- Air silencer
- Electric start control
- Electric starting motors — single 24V
- Starting aids
- Battery sets — (24V dry), cables, and rack

General
- Special paint

Benefits and Features

Engine Design

Engine Design

Emissions

Emissions

Lean Burn Engine Technology

Lean Burn Engine Technology

Cat® Electronic Ignition System (EIS)

Cat® Electronic Ignition System (EIS)

Ease of Operation

Ease of Operation

Full Range of Attachments

Full Range of Attachments

Testing

Testing

Gas Engine Rating Pro

Gas Engine Rating Pro

Product Support Offered Through Global Cat Dealer

Product Support Offered Through Global Cat Dealer

Over 80 Years of Engine Manufacturing Experience

Over 80 Years of Engine Manufacturing Experience

Web Site

Web Site

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