G3408

Overview

Tough and durable, built on the industry-standard G3400 platform bring maximum uptime and low operating cost to your operation. G3408 engines meet the most demanding continuous duty gas compression applications with virtually no unscheduled downtime.Ideal applications for G3408 engines include gas lift, gas gathering, and wellhead gas compression. Cat G3408 gas engine. Ratings: 317 bkW (425 bhp) @ 1800 rpm are NSPS site compliant capable with customer-provided aftertreatment or available for non-regulated areas.

 

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Engine Specifications
Minimum Rating317bkW
Maximum Rating317bkW
EmissionsNSPS Site Compliant Capable or Non-regulated
Displacement18l
Compression Ratio8.5:1
AspirationTurbocharged-Aftercooled
Rotation from Flywheel EndCounterclockwise
Flywheel and Flywheel HousingSAE No. 0
Flywheel Teeth136
Weight - Dry2245kg
Oil Change Interval750 hours
Ignition, ProtectionCat EIS
Stroke152mm
Bore137mm
Capacity for Liquids
Cooling System54.9l
Lube Oil System - Refill147.63l
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
Engine Design
• Improved 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
Emissions
Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2007/08
Lean Burn Engine Technology
Lean-burn engines operate with large amounts of excess air. The excess air absorbs heat during combustion reducing the combustion temperature and pressure, greatly reducing levels of NOx. Leanburn design also provides longer component life and excellent fuel consumption.
Cat® Electronic Ignition System (EIS)
Detonation sensitive timing protects the engine against detonation damage. Higher voltage and longer spark duration mean easier starts, fewer misfires, and smoother operation. Diagnostic codes help pinpoint cylinder and component of interest. Spark plug maintenance codes identify spark plug condition
Ease of Operation
• Deep sump oil pan has a larger capacity for normal 750-hour oil change intervals• Side covers on block allow for inspection of internal components
Full Range of Attachments
Large variety of factory-installed engine attachments reduces packaging time
Testing
Every engine is full-load tested to ensure proper engine performance.
Gas Engine Rating Pro
GERP is a web-based program designed to provide site performance capabilities for Cat natural gas engines for the gas compression industry. GERP provides engine data for your site's altitude, ambient temperature, fuel, engine coolant heat rejection, performance data, installation drawings, spec sheets, and pump curves.
Product Support Offered Through Global Cat Dealer
More than 2,200 dealer outletsCaterpillar factory-trained dealer technicians service every aspect of your petroleum engineCat parts and labor warrantyPreventive maintenance agreements available for repair-before-failure optionsS•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine:- Internal engine component condition- Presence of unwanted fluids- Presence of combustion by-products- Site-specific oil change interval
Over 80 Years of Engine Manufacturing Experience
Over 60 years of natural gas engine productionOwnership of these manufacturing processes enables Caterpillar to produce high quality, dependable products.- Cast engine blocks, heads, cylinder liners, and flywheel housings- Machine critical components- Assemble complete engine
Web Site
For all your petroleum power requirements, visit www.catoilandgasinfo.com
Specifications
Engine Specifications
Minimum Rating317bkW
Maximum Rating317bkW
EmissionsNSPS Site Compliant Capable or Non-regulated
Displacement18l
Compression Ratio8.5:1
AspirationTurbocharged-Aftercooled
Rotation from Flywheel EndCounterclockwise
Flywheel and Flywheel HousingSAE No. 0
Flywheel Teeth136
Weight - Dry2245kg
Oil Change Interval750 hours
Ignition, ProtectionCat EIS
Stroke152mm
Bore137mm
Capacity for Liquids
Cooling System54.9l
Lube Oil System - Refill147.63l
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
Benefits & Features
Engine Design
Emissions
Lean Burn Engine Technology
Cat® Electronic Ignition System (EIS)
Ease of Operation
Full Range of Attachments
Testing
Gas Engine Rating Pro
Product Support Offered Through Global Cat Dealer
Over 80 Years of Engine Manufacturing Experience
Web Site
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