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Yamaha EF12000DE Generator (12,000W)

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Your Price:
$3,959.10 (You save $439.90)
328.00 LBS
Ships in 3-10 days.
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The Yamaha EF12000DE portable generator offers a quality Yamaha engine, electric start, and up to 12,000 watts of power.


  • Dual Voltage - Provides the versatility of 120 and 240 volt operation.
  • OHV Engine (overhead valve) - Precise valve actuation and heavy-duty design offer improved efficiency, increased reliability and quite operation.
  • Cast Iron Cylinder Lining - Provides optimal heat dissapation, consistent performance during continuous use, and long engine life.
  • Oil Watch Warning System - Automatically shuts off before oil level is low and cannot be re-started until oil is added. Prevents engine damage and costly repairs while enhancing long-term durability.
  • Auto Voltage Regulation - Guarantees correct power delivery even with extension cords, enhances performance, and adds convenience.
  • Transistor Controlled Ignition (T.C.I.) - Provides clean, efficient spark that ensures fast, easy starting. Low maintenace, reliable operation.
  • Noise Suppressor - Reduces electrical interference with TVs and radios.
  • Auto Decompression - Automatically opens exhaust valve slightly to reduce initial backpressure when starting, making manual starting effortless.
  • USFS-Approved Spark Arrestor - Offers quiet operation and keeps sparks from exiting exhaust system, reducing chance of fires caused by an errant spark.
  • Ground Fault Interrupter (G.F.I.) - If the system senses a leak to ground, it automatically cuts off power to help prevent injuries.
  • Fuel Gauge - Lets operator monitor how much fuel is left.
  • Electric Starter - For convenient ease of operation.
  • Economy Idle - When there is no load on the generator, it automatically returns to idle for improved fuel efficiency and quieter operation.
  • AC Non-Fuse Thermal Breaker - Protects AC circuit in case of an overload for added durability and peace of mind.
  • Tool Kit - Makes service easier.



Max Watts / Amps:
12,000W / 100A @ 120V, 50A @ 240V
Rated Watts / Amps:
9500W / 79.2A @120V, 39.6A @ 240V
2 - 20A 120V GFCI Duplex (NEMA 5-20), 1 - 30A 120V Locking Plug (NEMA L5-30), 1 - 30A 120/240V Locking Plug (NEMA L14-30), 1 - 50A 120/240V Locking Plug (NEMA CS6365)
Starting System:
Sound Level:
80 dBA
Air-Cooled, Four-Stroke, OHV Twin Cylinder, 653 cc
Fuel Tank Capacity:
11.4 gallons
Full Tank Runtime:
8.0 hrs. at rated load
Dimensions LxWxH (inches):
33.3 x 29.6 x 33.3
Dry Weight:
327.8 lbs.
3 years
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