The G 120 is big on power and features to meet your market and job site needs. This durable, sound attenuated diesel generator provides mobile prime power for larger construction, commercial, industrial, special event and emergency management applications where quiet, reliable power is needed. The digital controller monitors and protects the generator and engine. The standard environmentally friendly features include a 115% fluid containment, crankcase oil vapor recovery system, no mess oil and radiator drain hoses and fast fuel fill system that minimizes fuel spill potential. 

• Brushless alternators with separate excitation and AVR (Automatic Voltage Regulation) provide excellent motor starting and an enhanced ability to run non-linear loads.
• Simple, one switch start for easy operation and easy voltage selection using a lockable voltage selection switch.
• Rated power up to 120°F (49°C) for optimum performance even in hot climates. For cold climates, add many of the factory installed options like the cold weather package or battery charger, etc.
• Easy to use keypad for service diagnostics; engine diagnostic codes display on the LCD readout simplifying engine troubleshooting, fuel consumption, percentage load, kW per hour and other data available.
• Also available, heavy-duty, dual axle trailers with aluminum diamond plate fenders are road ready with DOT lighting, chains height adjustable coupler and choice of surge or electric brakes. 

  Technical specifications

  	G 120 (T3)	G 120 (T4i)
  Dimensions
  L x W x H Operating (Skid) in	110 x 45 x 64.5	110 x 45 x 66.3
  L x W x H Shipping (Skid) in	113 x 47.5 x 76.6	113 x 47.5 x 78.4
  L x W x H Shipping/Operating (Trailer) in	176 x 80 x 90	176 x 80 x 90
  Weights
  Weight Dry (Skid) lb	4,725	4,830
  Weight Operating (Skid) lb	6,163	6,268
  Weight Shipping (Skid) lb	4,912	5,017
  Weight Operating (Trailer) lb	7,533	7,638
  Weight Shipping (Trailer) lb	6,095	6,200
  Operating data
  Trailer coupling Type	Pintle	Pintle
  Standby output   kW	106	106
  Prime output  kW	96	96
  Voltage 3 Phase V	240/480	240/480
  Current 3 Phase (Prime) A	289/145	289/145
  Current 1 Phase (Prime) A	120/240	120/240
  Voltage 3 Phase V	208, 220, 240, 416, 440, 480	208, 220, 240, 416, 440, 480
  Voltage 1 Phase V	120, 127, 139, 240, 254, 277	120, 127, 139, 240, 254, 277
  Circuit breaker (Main) A	350	350
  Frequency  Hz	60	60
  Power factor 1 Phase cos Φ 1~	1	1
  Power factor 3 Phase cos Φ 3~	0.8	0.8
  Sound level (LwA) at Prime (23 ft / 7 m) dB(A)	70.6	69.8
  Receptacles -20 Amp GFI Duplex	2	2
  Receptacles -50 Amp Twist Lock	3	3
  Receptacles -30 Amp Twist Lock	-	-
  Engine / Motor
  Engine / Motor	Liquid-Cooled, 4 Cylinders	Liquid-Cooled, 4 Cylinders
  Engine / Motor manufacturer	John Deere	Cummins
  Emissions Certified	Tier 3	Tier 4i
  Displacement  in³	275	272
  Operating performance ISO 3046 hp	-	173
  Operating performance SAE J1995, ISO 8528-1 hp	158	-
  at rpm  rpm	1,800	1,800
  Coolant Capacity US qt	23.8	36
  Engine oil Capacity US qt	15.9	15.3
  Fuel type	Diesel	Diesel
  Fuel consumption (Prime Load) US gal/h	7.44	7
  Tank capacity -Fuel US gal	199.8	199.8
  Quantity (Battery)	1	2
  Battery  V	12	12
  Generator model	Mecc Alte, Brushless w/AVR	Mecc Alte, Brushless w/AVR
  Voltage control No Load to Full Load +/- %	1	1
  Voltage control Steady State +/- %	0.2	0.2
  Generator insulation (class)	H	H
  Frequency (Generator Speed) Hz	60	60
  Runtime at 100% Prime Load h	24.8	26.3
  Runtime at 75% Prime Load h	31	33.4
  Runtime at 50% Prime Load h	43.4	45.3