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336 Excavator

  • Specs Summary

3508 Land Electric-Drive Drilling Module

Oil and gas drilling is a complex task that requires specialized power generation equipment. Cat 3500 power modules are specifically designed for drilling operations of electric AC rigs. The 3500 platform carries decades of field experience in drilling operations across a wide variety of environmental conditions. Cat power modules are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. Cat 3508 land drilling power module ratings: 610 ekW (880 kVA) @ 60 Hz (1200 rpm). Not emissions certified, available for non-regulated areas.

Standard Equipment

Flywheel and Housing

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

Fuel System

  • Primary fuel filter
  • Fuel filter
  • Fuel transfer pump
  • Flexible fuel lines
  • Fuel priming pump


  • Oilfield generator
  • Twin-bearing, close-coupled

Power take-offs

  • Accessory drive
  • Front housing, two-sided

Protection System

  • Explosion relief valves (3)
  • Shutoffs
  • Switches and contactors
  • Hydra-mechanical shutoffs (low oil pressure, high water temperature and overspeed, air inlet shutoff). Monitoring gauge and emergency remote shutoff
  • Alarm switches, low oil pressure, high water temperature (Marine Society approved) for connection to customer supplied alarm panel
  • Manual shutoff control, LH


  • Engine barring group
  • Paint - Cat yellow
  • Vibration damper and guard
  • Lifting eyes

Optional Equipment

Air Inlet System

  • Heavy duty air cleaner
  • Corrosion-resistant aftercooler core
  • Remote air inlet adapters
  • Regular duty air cleaner
  • Service indicator

Control System

  • Load sharing governor, 2301A
  • Load sharing module
  • Governor, Woodward EG6PC actuator — RH
  • Governor conversion to 0-200 mA direct rack control
  • Magnetic pickup

Cooling System

  • Coolant level sensors
  • Thermostats and housing (dual outlet)
  • Connections
  • Jacket water pump, gear driven

Exhaust System

  • Dry exhaust manifold
  • Exhaust elbows
  • Exhaust flexible fitting, adapters, and flanges
  • Exhaust mufflers

Generator and Attachments

  • Low voltage extension box
  • Potential and current transformers
  • Air filter
  • Cable access box
  • Bearing RTDs


  • Customer management device
  • Gauges and instrumentation panels
  • Switches and contactors
  • Analog instrument gauges:

Lubrication System

  • Crankcase fumes disposal
  • Oil pan accessories
  • Crankcase breather
  • Oil cooler
  • Oil filter
  • Shallow oil pan
  • Oil drain extension, 2 in NPT female connection

Mounting System

  • Bases
  • Rails, mounting, floor type, 254 mm (10 in)

Power Take-off

  • Crankshaft pulley
  • Front stub shaft
  • Charging alternator

Starting System

  • Manual air starter
  • Air pressure regulator
  • Air starting motor
  • Air silencer