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Yamaha EF12000D Electric Power Generator Features and Specifications

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  Yamaha EF12000D Electric Power Generator
M.S.R.P. $4,399.00


Top Features:
  • With up to 50 amps 240V and 120/240 dual voltage output, the EF12000DE can handle most anything during a power outage
  • The EF12000DE is our highest output gasoline-powered 120/240- volt output generator
  • It uses a twin-cylinder 653cc, 4-stroke, OHV engine to deliver 12,000 watts maximum AC output with outstanding fuel efficiency
  • It has the convenience of electric starting (battery not included) and its compact size makes it highly portable
  • It provides 8 hours of continuous operation at rated load without refueling to power up super heavy-load equipment like well pumps, air compressors, table saws and more. Great as a backup generator
  • 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 dissipation, 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, adds convenience
  • Transistor Controlled Ignition (T.C.I.) — Provides clean, efficient spark that ensures fast, easy starting. Low maintenance, reliable operation
  • Noise suppressor — Reduces electrical interference with TVs and radios
  • Auto decompression — Automatically “opens” exhaust valve slightly to reduce initial back pressure 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
  • GFCI — Ground Fault Circuit Interruption shuts off power when it senses a leak to ground to reduce risk of electric shock
  • 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
  • Wheel kit Easier service, added value
  • Tool kit— Makes service easier
  • Factory warranty — Covers the entire generator for defects in parts and workmanship for three (3) years
Available Accessories & Options:
  • Accessory Remote Control — With a 33 ft. cord
  • Accessory Hour Meter/Tachometer — Keep track of running time for service needs
  • Am/Watt Appliance Load Tester — Gives quick, accurate readout of watts or amps used by 120 volt AC electrical devices
  • Yamaha Extended Service — Additional 1, 2 or 3 years of Y.E.S. is available


MSRP* $4,399 -   - 
TypeBrush, AVR AC Generator
Maximum AC Output 12,000 watts
Rated AC Output9500 watts
Rated / Maximum AC Current 79.2 / 100.0 amps @ 120V - 39.6 / 50.0 amps @ 240V
EngineOHV, air-cooled, twin cylinder, 4-stroke
L x W x H33.3 x 29.6 x 33.3 in
Dry Weight327.8 lb
Fuel Tank Capacity 11.4 gal
Continuous Operation at Rated Load 8.9 hr
Noise Level80.0 dBA
Warranty3 Years Limited Warranty

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*These fuel economy estimates shown on this website are based on US EPA exhaust emission certification data obtained by Yamaha.
A rider’s actual mileage will vary depending on road conditions, how they ride, and the maintenance of each vehicle, vehicle accessories, cargo that may be carried and the operators and passenger’s weight.
Prices do not include any tax, license, freight, prep or delivery charges as applicable. Prices do include all factory incentives
Please call Our Sales Department at (800)523-2414 for more information Prices are subject to change without notice.
**Financing options are based OAC (on approved credit) and vary from individual to individual.