G3304B

G3304B Gas Compression Engine

Tough and durable, built on the industry-standard G3300 platform and equipped with technology that brings performance, uptime, and low operating cost to your operation. G3304B engines meet the most demanding continuous duty gas compression applications with virtually no unscheduled downtime. Ideal applications for G3304B engines include gas lift, gas gathering, and wellhead gas compression. Cat G3304B gas engine. Ratings: 71 bkW (95 bhp) @ 1800 rpm are NSPS site compliant capable with Caterpillar or customer-provided air-fuel ratio control and aftertreatment.

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Advanced Digital Engine Management

The ADEM A4 system represents the next generation of engine management systems while reducing the number of mechanical components and easing troubleshooting. Features include: • Air/Fuel Ratio Control (AFRC) • Electronic ignition • Electronic governing/speed control • Start/stop logic • Engine protection & monitoring

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Gas Engine Rating Pro (GERP)

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 outlets Cat factory-trained dealer technicians service every aspect of your petroleum engine Caterpillar parts and labor warranty. Preventive maintenance agreements available for repairbefore-failure options S•O•SSM program matches your oil and coolant samples against Catepillar 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 production Ownership 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.

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com.

Standard Equipment

Air Inlet System
  • Air cleaner — intermediate duty, dry
  • Air cleaner rain cap (shipped loose)
  • Service indicator
Control System
  • ADEM A4
Cooling System
  • Thermostats and housing — full open temperature 97°C (207°F)
  • Jacket water pump — gear-driven, centrifugal, non-self-priming
Exhaust System
  • Exhaust manifolds — watercooled
  • Exhaust elbow — dry 102 mm (4 in)
  • Three-way catalyst — 1.0 g and 0.5 g NOx catalyst options
Flywheels & Flywheel Housings
  • Flywheel, SAE No. 1
  • Flywheel housing, SAE No. 1
  • SAE standard rotation
Fuel System
  • Air/fuel ratio control
  • Gas pressure regulator
  • Requires 10.3-68.9 kPa (1.5-10 psi) gas
  • Natural gas carburetor
Ignition System
  • ADEM A4 ignition
Lube System
  • Crankcase breather, top mounted
  • Oil cooler
  • Oil filter
  • Oil pan, full sump
  • Oil filler and dipstick
Protection System
  • The following parameters include alarm and shutdown

Additional information

Offering Type

Engine Specifications - Maximum Rating

71.0 bkW ( 95.0 BHP )
Engine Specifications - Emissions

NSPS 2010
Engine Specifications - Displacement

7.0 l ( 427.0 in³ )
Engine Specifications - Minimum Rating

71.0 bkW ( 95.0 BHP )
Engine Specifications - Compression Ratio

10.5:1
Engine Specifications - Aspiration

Naturally Aspirated
Engine Specifications - Rotation from Flywheel End

Counterclockwise
Engine Specifications - Flywheel and Flywheel Housing

SAE No. 1
Engine Specifications - Flywheel Teeth

156
Engine Specifications - Weight - Dry

1022.3 kg ( 2253.8 lb )
Engine Specifications - Oil Change Interval

750
Engine Specifications - Ignition, Protection

ADEM™ A4
Engine Specifications - Air/Fuel Ratio Control

ADEM™ A4
Engine Specifications - Stroke

152.0 mm ( 6.0 in )
Engine Specifications - Bore

121.0 mm ( 4.8 in )
Capacity for Liquids - Cooling System

16.0 l ( 4.23 gal (US) )
Capacity for Liquids - Lube Oil System - Refill

31.0 l ( 8.19 gal (US) )

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