G3512J

G3512J Gas Compression Engines

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Key Specs

Maximum Rating
1035 BHP
1029 bkW
Rated Speed
1400 rpm
1400 rpm
Emissions
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx

Overview

The line of G3500 engines brings versatility, uptime, and low operating cost to your gas compression operation. They are equipped with ADEM A3 technology that enables highest performance and safety while maintaining low emissions. Ideal applications for G3500 engines include gas lift, gas gathering, and wellhead gas compression. The Cat G3512J gas engines are rated at 772 bkW (1035 bhp) @ 1400 rpm and are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment.

Features At A Glance

Displaying 1-6 of 10

Cat

Engine Design

- Proven 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
Cat

Emissions

Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2010
Cat

Lean Burn Engine Technology

Lean-burn engines operate with large amounts of excess air. The excess air absorbs heat during combustion reducing the combustion temperature and pressure, greatly reducing levels of NOx. Lean-burn design also provides longer component life and excellent fuel consumption.
Cat

Advanced Digital Engine Management

ADEM A3 control system providing integrated ignition, speed governing, protection, and controls, including detonation-sensitive variable ignition timing. ADEM A3 has improved: user interface, display system, shutdown controls, and system diagnostics.
Cat

Ease of Operation

Side covers on block allow for inspection of internal components
Cat

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time
Specifications Standard Equipment Optional Equipment

Product Specifications for G3512J

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Maximum Rating 1035 BHP 1029 bkW
Rated Speed 1400 rpm 1400 rpm
Emissions Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
Minimum Rating 1035 BHP 1029 bkW
Displacement 3173 in³ 51.8 l
Aspiration Turbocharged - Aftercooled Turbocharged - Aftercooled
Length 120 in 3037 mm
Width 86.7 in 2201 mm
Stroke 7.5 in 190 mm
Height 84.1 in 2135 mm
Bore 6.7 in 170 mm
Weight - Dry 15611 lb 7081 kg
Oil Change Interval 2000 hours 2000 hours
Combustion Lean Burn Lean Burn
Governor Electronic (ADEM A3) Electronic (ADEM A3)
Rotation from Flywheel End Counterclockwise Counterclockwise
Lube Oil System - Refill 89 gal (US) 337 in³
Flywheel Teeth 183 183

G3512J Standard Equipment

Print

Air Inlet System

  • Axial flow air cleaners
  • Single element canister type with service indicator

Cooling System

  • Two-stage charge air cooling system
  • Engine cooling and charge air cooling thermostats

Exhaust System

  • Watercooled exhaust manifolds
  • Dry Turbocharger housings
  • Water-cooled exhaust elbow

Flywheels & Flywheel Housings

  • SAE No. 00 flywheel housing
  • SAE standard rotation
  • SAE No. 21 Flywheel

Fuel System

  • 7-40 psig gas supply
  • Electronic fuel metering valve
  • Gas pressure regulator
  • Gas shutoff valve
  • Fuel System

Instrumentation

  • Remote-mounted Advisor control panel
  • Interconnect harness

Lubrication System

  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — shallow
  • Oil sampling valve
  • Turbo oil accumulator

Mounting System

  • Rails

Protection System

  • Electronic shutoff system
  • Gas shutoff valve

General

  • Paint — Cat yellow
  • Crankshaft vibration damper and guard

Power Take Offs

  • Front lower LH accessory drive
  • Front housing, two sided

G3512J Optional Equipment

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Air Inlet System

  • Remote air inlet adapters
  • Rain Shield

Charging System

  • CSA Alternator (24V, 65A)

Exhaust System

  • Flexible fittings
  • Elbows
  • Flange
  • Mufflers

Fuel System

  • Fuel filter

Lubrication System

  • Oil bypass filter
  • Deep sump oil pan
  • Air prelube pump
  • Lubricating oil
  • Oil pan drain

Power Take-Offs

  • Front stub shaft

Protection System

  • Explosion relief valves, status control box interconnect wiring harness

Starting System

  • 90 psi starter
  • 150 psi starter

EU Certification

  • EEC DOI certification

Product Brochures and More Are Ready to Download!

See how G3512J compares against frequently compared products.

Oil and Gas
Selected
G3512J
G3512J
Maximum Rating
1035 BHP
1029 bkW
Rated Speed
1400 rpm
1400 rpm
Emissions
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
Oil and Gas
G3516 NA
G3516 NA
Maximum Rating
660 BHP
492 bkW
Rated Speed
1200 rpm
1200 rpm
Emissions
Rich Burn: EPA NSPS Site Compliant Capable with Customer Supplied AFRC and Customer Supplied Aftertreatment or Standard Emissions for Export Only
Rich Burn: EPA NSPS Site Compliant Capable with Customer Supplied AFRC and Customer Supplied Aftertreatment or Standard Emissions for Export Only
View Details
Oil and Gas
G3512 TA
G3512 TA
Maximum Rating
1004 BHP
749 bkW
Rated Speed
1400 rpm
1400 rpm
Emissions
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
View Details

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G3512J Gas Engine

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G3512J Gas Engine

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