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Wacker G120

Available For Rent
Available For Purchase

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.


Product files and documents

G120 PDF file, 260.75 KB

Length 110.0 in
Width 45.0 in
Height 65 in
Operating Weight 7533 lbs
Standby Output 106kW
Prime Output 96kW
Voltage 3 Phase 240/480V
Voltage 1 Phase 120, 127, 139, 240, 254, 277V
Current 3 Phase (Prime) 289/145 A
Current 1 Phase (Prime) 120/240 A
Circuit Breaker (Main) 350 A
Frequency 60 Hz
Sound Level at Prime 69 dB(A)
Motor Liquid-Cooled, 4 Cylinders
Manufacturer John Deere
Emissions Tier Level Tier 3
Displacement 275in³
Operating Performance 158 hp
RPM 1,800rpm
Fuel Type Diesel
Fuel Consumption (Prime Load) 7.4 US gal/hr
Tank Capacity 200 US gal
Run Time (at 100% Prime Load) 28.8 h