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Gas Engines

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® G3520, G3520B Industrial Gas Engine

Cat® G3520 and G3520B Industrial Gas Engine. Ratings: 1104 bkW (1480 bhp) @ 1200 rpm and 1286 bkW (1725 bhp) @ 1400 rpm are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

Product Details

General

Bore 170 mm (6.7 in)
Stroke 190 mm (7.5 in)
Displacement 86.3 L (5263 in³)
Engine Configuration Engien - Continuous

Power Rating

Minimum Power 1104.0 bkW
Maximum Power 1286.0 bkW
Frequency 1200-1400 rpm

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Weight, Net Dry 11168 kg (24622 lb)
Height 2385 mm (94 in)
Width 1755 mm (69 in)
Length 4180 mm (164 in)
  • Air Inlet System
    •  Axial Flow Air cleaner
    •  Cleanable
    •  Intermediate-duty with service indicator
  • Axial Flow Air cleaner
    • Cleanable
      • Intermediate-duty with service indicator
        • Control System
          •  ADEM A3 with integrated electronic throttle control
          •  Control panel
        • Cooling System
          •  Two-stage charge air cooling
          •  Thermostats and housing
          •  Engine-driven jacket and aftercooler water pump
          •  Stainless steel aftercooler cores
        • Exhaust System
          •  Dry exhaust manifolds
          •  Dry exhaust elbow
        • Flywheels and Flywheel Housings
          •  SAE No. 00 flywheel
          •  SAE No. 00 flywheel housing
          •  SAE standard rotation
        • SAE No. 00 flywheel
          • SAE No. 00 flywheel housing
            • SAE standard rotation
              • Fuel System
                •  7-50 psi gas supply
                •  Fuel system is sized for 800 to 1200 btu/scf (31.5 to 47.2 MJ/Nm3)
                •  Electronic fuel metering valve
                •  Gas pressure regulator
                •  Gas shutoff valve (GSOV)
              • 7-50 psi gas supply
                • Fuel system is sized for 800 to 1200 btu/scf (31.5 to 47.2 MJ/Nm3)
                  • Electronic fuel metering valve
                    • Gas pressure regulator
                      • Gas shutoff valve (GSOV)
                        • Ignition System
                          •  ADEM A3
                        • Lubrication System
                          •  Crankcase breather — top mounted
                          •  Oil cooler
                          •  Oil filter — RH
                          •  Oil pan — 143 gal
                          •  Drain valve
                          •  Oil sampling valve
                          •  Turbo oil accumulator
                        • Mounting System
                          •  Engine mounting rails - 330.2 mm (13 in) industrial-type
                        • Power Take-Offs
                          •  Front housing — two-sided
                          •  Front lower LH, RH, and upper RH accessory drives
                        • General
                          •  Paint — Cat yellow
                          •  Crankshaft vibration damper and guard
                          •  CSA Certification, Class 1 Division 2, Group D - electrical system and instrumentation - includes ADEM A3 and control panel
                        • Air Inlet System
                          •  Round air inlet adaptors
                        • Round air inlet adaptors
                          • Charging System
                            •  Charging alternator - CSA approved 24V, 65 A
                          • Charging alternator - CSA approved 24V, 65 A
                            • Cooling System
                              •  Flexible connections
                            • Flexible connections
                              • Exhaust System
                                •  Flexible fittings
                                •  Flange and expander
                              • Fuel System
                                •  Gas filter
                              • Gas filter
                                • Instrumentation
                                  •  Communications module
                                • Communications module
                                  • Lubrication System
                                    •  Lubricating oil
                                    •  Oil bypass filter
                                    •  Air prelube pump
                                  • Power Take-Offs
                                    •  Front stub shaft
                                    •  Pulleys
                                    •  Double damper
                                  • Protection System
                                    •  Explosion relief valves
                                    •  Secondary GSOV
                                  • Explosion relief valves
                                    • Secondary GSOV
                                      • Starting System
                                        •  Air starting motor with controls (90 psi or 150 psi)
                                        •  API B16.3 compliant piping
                                        •  Jacket water heater
                                        •  Barring group
                                      • General
                                        •  Special paint
                                        •  Torsional vibration analysis
                                      • Special paint
                                        • Torsional vibration analysis
                                          • EU Certification
                                            •  EEC DOI certification
                                          • EEC DOI certification
                                            • Support
                                              •  Factory commissioning
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