G3512J
G3516J Gas Engine
G3512J
DESCRIPTION
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.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
Emissions
Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2010
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.
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.
Ease of Operation
Side covers on block allow for inspection of internal components
Full Range of Attachments
Large variety of factory-installed engine attachments reduces packaging time
Testing
Every engine is full-load tested to ensure proper engine performance.
Gas Engine Rating Pro
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 Cat parts and labor warranty Preventive maintenance agreements available for repairbefore- failure optionsS•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine: - Internal engine component condition - Presence of unwanted fluids - Presence of combustion by-products - Site-specific oil change interval
Over 60 Years of Gas 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
- Standard Equipment
- Optional Equipment
- Specs
- Docs
Standard Equipment
- 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
Optional Equipment
- 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
Specs
Overview
Engine Specifications
Capacity for Liquids
Engine Specifications
Flywheel Teeth
SEE HOW G3512J COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.
- Brand
- Cat
- Status
- Current
- Rated Speed
- 1400 rpm / 1400 rpm
- Emissions
- Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
- Minimum Rating
- 1035 BHP / 1029 bkW
- Maximum Rating
- 1035 BHP / 1029 bkW
- Displacement
- 3173 in³ / 51.8 l
- Brand
- Caterpillar
- Status
- Current
- Rated Speed
- 1400 rpm / 1400 rpm
- Emissions
- Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.5 g/bhp-hr NOx
- Minimum Rating
- 790 BHP / 589 bkW
- Maximum Rating
- 1004 BHP / 749 bkW
- Displacement
- 3158 in³ / 51.8 l
- Brand
- Caterpillar
- Status
- Current
- 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
- Minimum Rating
- 330 BHP / 246 bkW
- Maximum Rating
- 660 BHP / 492 bkW
- Displacement
- 4210 in³ / 69 l