G3408 Gas Compression Engine

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: 190-298 bkW (255-400 bhp) @ 1800 rpm are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment or available for non-regulated areas.

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

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 outletsCat factory-trained dealer technicians service every aspect of your petroleum engineCat parts and labor warrantyPreventive maintenance agreements available for repairbefore-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

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

Additional information

Offering Type

Engine Specifications - Maximum Rating

298.0 bkW ( 400.0 BHP )

Engine Specifications - Emissions

NSPS Site Compliant Capable or non-regulated

Engine Specifications - Displacement

18.0 l ( 1099.0 in³ )

Engine Specifications - Minimum Rating

190.0 bkW ( 255.0 BHP )

Engine Specifications - Compression Ratio

9.7:1

Engine Specifications - Aspiration

Naturally Aspirated or Turbocharged-Aftercooled

Engine Specifications - Rotation from Flywheel End

Counterclockwise

Engine Specifications - Flywheel and Flywheel Housing

SAE No. 0

Engine Specifications - Flywheel Teeth

136

Engine Specifications - Weight - Dry

1678.0 kg ( 3700.0 lb )

Engine Specifications - Oil Change Interval

750 hours

Engine Specifications - Ignition, Protection

Altronic III

Engine Specifications - Stroke

152.0 mm ( 6.0 in )

Engine Specifications - Bore

137.0 mm ( 5.4 in )

Capacity for Liquids - Cooling System

54.9 l ( 14.5 gal (US) )

Capacity for Liquids - Lube Oil System - Refill

46.2 l ( 12.2 gal (US) )

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