• Overview
  • View product Download

GCM34 Gas Engine

  • Robust high speed block design provides prolonged life and lower owning operationg costs
  • Designed for maximum performance on low pressure pipeline natural gas
  • Simple open chamber combustion system for reliability and fuel flexibility
  • Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
  • One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection

SR5 Generator

  • Designed to match performance and output characteristics of Caterpillar gas engines
  • Industry leading mechanical and electrical design
  • High efficiency


  • Meets most worldwide emissions requirements down to 0.5 g/bhp-hr NOx level without aftertreatment

Insert Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

CAT Electronic Control System

  • Simple user friendly interface and navigation
  • Digital monitoring, metering and protection setting
  • Fully-featured power metering and protective relaying
  • Remote control and monitor capability options

Proven System

  • Field proven in a wide range of applications worldwide
  • fully prototype tested
  • Certified torsional vibration analysis available

One Safe Source

  • Wide range of bolt-on system expansion attachments
  • Factory designed and tested
  • Flexible packaging options for easy and cost effective installation

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Generator Set Specifications
Maximum Continuous Rating 10320 / 9830 ekW @ 1.0pf
Fuel Type Natural Gas
Maximum Electrical Efficiency 47.90%
Frequency 50 / 60 Hz
RPM 750/720
Engine Specifications
Engine Model G20CM34
Displacement 762.6 l (46484.2 inu00b3)
Aspiration TA
Bore 340 mm (13.38 in)
Stroke 420 mm (16.53 in)
Generator Set Dimensions
Length 14280 mm (562.2 in)
Width 3910 mm (153.9 in)
Height 5390 mm (212.2 in)
Dry Weight - Genset 361558 lb (164000 kg)
Generator Set Specifications
Frequency 50/60 Hz

Standard Equipment

  • Fuel System
    • Separator module
    • Pre-pressure module
    • Circulation module
    • Gas valve unit (GVU) (only dual fuel (DF) and gas)
    • Ignition fuel oil module (only dual fuel (DF))
    • Engine ventilation module (only dual fuel (DF) and gas)
  • Lubricating Oil System
    • Lube oil separator module
    • Piping interface module
    • Combined module: cooling water system and lube oil system
  • Cooling Water System
    • Combined module: see lube oil system
    • Cooling water system with radiators
    • Piping interface module
  • Starting System
    • Starting air receiver module
    • Starting air compressor module
  • Combustion Air System
    • Air filter – pulse
    • Air filter – pocket
    • Air filter – oil bath
  • Exhaust System
    • Exhaust gas ventilation module (only dual fuel (DF) and gas)
    • Exhaust gas silencer
    • Oxidation catalytic (Oxicat) converter system
    • Selective catalytic reduction (SCR) system
  • Control & Monitoring System
    • Motor control center module (MCC)
    • Local data panel (LDP) / generator control panel (GCP)
    • Gas leak detection per cylinder (only dual fuel (DF) and gas)
    • Local control panel (LCP)
    • Engine monitoring package
  • Mounting System
    • Elastic mounting – genset/engine

Enquiry Form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.