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Caterpillar
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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Specifications
Engine Specifications
| Spec | Value |
|---|---|
| Maximum Rating | 95 BHP 71 bkW |
| Emissions | NSPS 2010 NSPS 2010 |
| Displacement | 425 in³ 7 l |
| Minimum Rating | 95 BHP 71 bkW |
| Compression Ratio | 10.5:1 10.5:1 |
| Aspiration | Naturally Aspirated Naturally Aspirated |
| Rotation from Flywheel End | Counterclockwise Counterclockwise |
| Flywheel and Flywheel Housing | SAE No. 1 SAE No. 1 |
| Flywheel Teeth | 156 156 |
| Weight – Dry | 2253.8 lb 1022.3 kg |
| Oil Change Interval | 750 750 |
| Ignition, Protection | ADEM™ A4 ADEM™ A4 |
| Air/Fuel Ratio Control | ADEM™ A4 ADEM™ A4 |
| Stroke | 6 in 152 mm |
| Bore | 4.75 in 121 mm |
Capacity for Liquids
| Spec | Value |
|---|---|
| Cooling System | 4.23 gal (US) 16 l |
| Lube Oil System – Refill | 8.19 gal (US) 31 l |
Weight - Dry
| Spec | Value |
|---|---|
| Weight – Dry | 1670 lb 1670 lb |
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
Related Products
Gas Compression Engines
G3306B