Yamaha Motor Corporation, U.S.A.
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Premium EF4000DE

Model HomeFeaturesAccessories
TypeBrushless, AC Generator
Maximum AC Output4000 watts
Rated AC Output3500 watts
Rated / Maximum AC Current29.0 / 33.0 amps @ 120V - 15.0 / 17.0 amps @ 240V
EngineOHV, Air-Cooled, Four-Stroke, Single Cylinder
Displacement / HP251cc / 8.5 hp
Overall Length31.7"
Overall Width20.7"
Overall Height20.1"
Dry Weight145.5 lbs.
Fuel Tank Capacity4.8 gallons
Continuous Operation at 1/2 Rated Load10.6 hrs.
Noise Level69.0 dBA
Warranty2 Years Limited Warranty