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Maximum Rating1380 BHP (1029 bkW)
EmissionsNSPS Site Compliant Capable
Minimum Rating660 BHP (492 bkW)
G3516 TA Gas Engine


Maximum Rating1380 BHP (1029 bkW)
EmissionsNSPS Site Compliant Capable
Minimum Rating660 BHP (492 bkW)

Benefits and Features

- Engine design built on G3500 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 at lower site air densities (high altitude/hot ambient temperatures) - Higher power density improves fleet management - Quality engine diagnostics - Detonation-sensitive timing control for individual cylinders

When configured with customer-supplied air fuel ratio control and three-way catalyst, the engine is capable of meeting NSPS and non-attainment area emissions levels.

ADEM A4 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM A4 has improved: user interface, display system, shutdown controls, and system diagnostics.

Large variety of factory-installed engine attachments reduces packaging time

Every engine is full-load tested to ensure proper engine performance.

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.

- 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 repair-before-failure options - S•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 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

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Standard Equipment

  • Intermediate duty air cleaner with service indicator
  • Rain shield
  • Two-stage charge air cooling: First stage — JW + 1st stage AC; Second stage — OC + 2nd stage AC
  • Engine cooling and charge air cooling thermostats
  • Jacket water pump, gear driven, centrifugal, non-self-priming
  • Atercooler water pump, gear driven, centrifugal, non-self-priming
  • Aftercooler with corrosion-resistent stainless steel core
  • Watercooled exhaust manifolds
  • Dry turbocharger housing
  • Dry exhaust elbow
  • Flywheel, SAE No. 21
  • Flywheel housing, SAE No. 00
  • SAE standard rotation
  • 32 - 35 psig gas supply to engine
  • Electronic fuel metering valve
  • Gas pressure regulator
  • Gas shutoff valve
  • Product Link cellular radio
  • Crankcase breathers - top mounted Oil cooler
  • Simplex oil filter - RH
  • Shallow oil pan
  • Oil sampling valve
  • Turbo oil accumulator
  • Double damper and guard
  • Front housing, two sided
  • Front lower LH accessory drive
  • Paint — Cat yellow
  • Crankshaft vibration damper and guard

Optional Equipment

  • Remote air inlet adapter
  • CSA alternator 24V, 60A
  • Jacket water heater
  • Mechanical joint assembly connections
  • Flexible fittings
  • Elbows
  • Flanges
  • Fuel filter
  • Gas shutoff valve
  • LAN adapter
  • Operator interface panel
  • Operator interface panel enclosure
  • 3',15',40',90',140' Product Link extension harness
  • 50', 100' interconnect harness
  • Lubricating oil
  • Oil pan drain
  • Air prelube pump
  • Single damper and guard
  • Front stub shaft
  • 90 psi starter
  • 150 psi starter
  • Special paint
  • Barring Device LH or RH
  • Explosion relief valves
  • Crankshaft pulley