Oil And Gas

  • Specs Summary
  • Minimum Rating
    95 bhp (71 bkW)
  • Maximum Rating
    95 bhp (71 bkW)
  • Emissions
    NSPS 2010
  • Displacement
    427 in3 (7 L)

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.

Engine Specifications

  • Minimum Rating 95 bhp (71 bkW)
  • Maximum Rating 95 bhp (71 bkW)
  • Emissions NSPS 2010
  • Displacement 427 in3 (7 L)
  • Compression Ratio 10.5:1
  • Aspiration Naturally Aspirated
  • Rotation (from flywheel end) Counterclockwise
  • Flywheel and Flywheel Housing SAE No. 1
  • Flywheel Teeth 156
  • Weight (dry) 2253.8 lb (1022.3 kg)
  • Oil Change Interval 750
  • Ignition, Protection ADEM™ A4
  • Air/Fuel Ratio Control ADEM™ A4
  • Stroke 6 in (152 mm)
  • Bore 4.8 in (121 mm)

Capacity for Liquids

  • Cooling System 4.23 gal (16 L)
  • Lube Oil System (refill) 8.19 gal (31 L)

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

Optional Equipment

Charging Alternator

  • 24V, 35A alternator
  • 24V, 35A CSA alternator*

Cooling System

  • Radiators
  • Jacket water pump inlet adapter

Exhaust System

  • Exhaust flex fitting — ANSI flange
  • Exhaust elbow
  • Catalyst harness
  • ANSI flange

Ignition System

  • CSA certified electronics and ignition*

Instrumentation

  • Operator interface panel
  • Operator interface panel enclosure
  • 15’, 25’ and 50’ interconnect harness

Starting System

  • Air pressure regulator
  • Air start silencer
  • Vane starter
  • Electric starter
  • Turbine starter