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Doosan G400 Generator (322kW)

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SKU: G400WCU-3B-T4F Category Brand:
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The Doosan G400WCU-3B-T4F mobile diesel generator offers dependable power, featuring include Tier 4 Final-compliant technology, rugged enclosure and running gear, user-friendly controls, 20-hour run time, and sound attenuation. The G400 produces up to 321kW of power and is ideal for events, emergency backups, or construction.


  • Leroy Somer brushless alternator
  • Doosan’s CoolBox cooling system.
  • Power cables are connected at an oversized five lug (L1, L2, L3, N, PE) terminal board at the rear of the unit (camlock connections are optional).
  • Voltage regulation +/- 0.5% with R450 automatic voltage regulator.
  • Two-Position Three Phase Link Board.
  • Remote Auto Start/Stop contacts.
  • Single Phase convenience receptacles with individual breakers are always available regardless of generator voltage setting.
  • Two 8D/1300 CCA batteries.
  • CSA Certified.


  • Heavy-duty Cummins Diesel engine meets EPA Tier 4 Final standards.
  • Dual frequency capability allows operation at 50Hz or 60Hz at the flip of a switch.
  • Electronically controlled engine provides isochronous frequency control and advanced diagnostic monitoring and protection.


  • Single fuel tank can run the generator for 20 hours at full load.
  • Fuel tank mounted low in frame and centered to ensure balanced lifting and low center of gravity.
  • Fuel filler located within the containment basin to minimize possible spillage.
  • Standard primary fuel/water separator and fine micron secondary fuel filter.
  • Low fuel shutdown ensures the engine will not lose prime if it runs out of fuel.
  • DEF tank sized for a minimum of 20-hour runtime.


  • Analog gauges for at-a-glance engine and generator monitoring.
  • LCD screen for explanations of engine fault codes, minimizing the need for hand-held code scanners.
  • LED display for detailed generator fault monitoring.
  • Solid state engine control module for convenient microprocessor-controlled push-button start up.


  • Enclosure constructed from galvanealed steel and coated with 13 stage powder paint for long life in even harsh environments.
  • Sound-absorbing acoustical material fitted to reduce noise for quiet operation.
  • Wide-opening side-hinged access doors provide easy access for service and maintenance. Doors have pad-lockable handles.
  • Center-point lifting eye.
  • Heavy-duty oilfield-ready skidbase with at least 110% liquid containment design.


  • Tandem axle torsion suspension.
  • Grommet-mount lighting.
  • Electric brakes standard.
  • 3″ Pintle Eye standard.


G400WCU-3B-T4F Spec Sheet


  • LE Package: Block Heater, Battery Charger, and External Fuel/DEF Capable.
  • Camlock Connections (5 Sets).
  • Single Phase Link Board.
  • Heated CCV Breather Hose.
  • Engine Cooling – Air Shut-Off Valve.
  • Audible/Visual Alarm.
  • Keyed Door Locks.
  • M8HZT-E Telematics.
  • Window Tint.
  • Tool Box.
  • LED Trailer Lights.
  • Rear Stabilizer Jack Stands.
  • Spare Tire.
  • Wheel Chocks.
  • 2-5/16″ Ball Hitch.
  • Trailer Breakaway Battery.
  • Skidmount.
  • CARB Reigistration.
  • DEIF Paralleling AGC4 Control Panel.
  • DEIF Paralleling AGC4 Control Panel with Camlocks (5 Sets).

Prime Power (1PH 120/240)

Prime Power (3PH 120/208V)

Prime Power (3PH 277/480V)

Voltage Regulation


Power Factor


Receptacles (Single Phase)

Main Circuit Breaker

Sound Level at 23 ft



Fuel Tank Capacity

Fuel Consumption

Full Load Runtime

Dimensions LxWxH (inches)

Shipping Weight

Operating Weight

Skidmount Dimensions

Skidmount Shipping Weight

Skidmount Operating Weight

Package Limited Warranty

Engine Limited Warranty

Alternator Limited Warranty


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