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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. G3306B engines meet the most demanding continuous duty gas compression applications with virtually no unscheduled downtime. Ideal applications for G3306B engines include gas lift, gas gathering, and wellhead gas compression. Cat G3306B gas engine. Ratings: 108-157 bkW (145-211 bhp) @ 1800 rpm are NSPS site compliant capable with Caterpillar or customer-provided air-fuel ratio control and aftertreatment.

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Engine Specifications
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Minimum Rating 145.0 BHP 108.0 bkW
Maximum Rating 211.0 BHP 157.0 bkW
Emissions NSPS 2010 NSPS 2010
Displacement 638.0 in³ 10.5 l
Compression Ratio 10.5:1 10.5:1
Aspiration Naturally Aspirated or Turbocharged-Aftercooled Naturally Aspirated or Turbocharged-Aftercooled
Rotation from Flywheel End Counterclockwise Counterclockwise
Flywheel and Flywheel Housing SAE No. 1 SAE No. 1
Flywheel Teeth 156 156
Weight - Dry 2450.0 lb 1111.0 kg
Oil Change Interval 750 hours 750 hours
Ignition, Protection ADEM A4 ADEM A4
Air/Fuel Ratio Control ADEM A4 ADEM A4
Stroke 6.0 in 152.0 mm
Bore 4.8 in 121.0 mm

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.

G3306B Standard Equipment

Air Inlet System
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  • Air cleaner — intermediate duty, dry
  • Air cleaner rain cap (shipped loose)
  • Service indicator

G3306B Optional Equipment

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