Wacker Neuson G120 (T4i)

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  • Brush-less 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.


G120 (T4i)
L x W x H Operating (Skid) in 110 x 45 x 66.3
L x W x H Shipping (Skid) in 113 x 47.5 x 78.4
L x W x H Shipping/Operating (Trailer) in 176 x 80 x 90
Weight Dry (Skid) lb 4,830
Weight Operating (Skid) lb 6,268
Weight Shipping (Skid) lb 5,017
Weight Operating (Trailer) lb 7,638
Weight Shipping (Trailer) lb 6,200
Operating data
Trailer coupling Type Pintle
Standby output kW 106
Prime output kW 96
Voltage 3 Phase V 240/480
Current 3 Phase (Prime) A 289/145
Current 1 Phase (Prime) A 120/240
Voltage 3 Phase V 208, 220, 240, 416, 440, 480
Voltage 1 Phase V 120, 127, 139, 240, 254, 277
Circuit breaker (Main) A 350
Frequency Hz 60
Power factor 1 Phase cos Φ 1~ 1
Power factor 3 Phase cos Φ 3~ 0.8
Sound level (LwA) at Prime (23 ft / 7 m) dB(A) 69.8
Receptacles -20 Amp GFI Duplex 2
Receptacles -50 Amp Twist Lock 3
Engine / Motor
Engine / Motor Liquid-Cooled, 4 Cylinders
Engine / Motor manufacturer Cummins
Emissions Certified Tier 4i
Displacement in³ 272
Operating performance ISO 3046 hp 173
Operating performance SAE J1995, ISO 8528-1 hp  
at rpm rpm 1,800
Coolant Capacity US qt 36
Engine oil Capacity US qt 15.3
Fuel type Diesel
Fuel consumption (Prime Load) US gal/h 7
Tank capacity -Fuel US gal 199.8
Quantity (Battery) 2
Battery V 12
Generator model Mecc Alte, Brushless w/AVR
Voltage control No Load to Full Load +/- % 1
Voltage control Steady State +/- % 0.2
Generator insulation (class) H
Frequency (Generator Speed) Hz 60
Runtime at 100% Prime Load h 26.3
Runtime at 75% Prime Load h 33.4
Runtime at 50% Prime Load h 45.3
Runtime at 25% Prime Load h 69.2

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