The EF4000DE/D are the “all-star utility infielders” of the Yamaha generator team. They do everything well, quietly, efficiently, and still have power in reserve. The EF4000DE/D have the Yamaha 357cc OHV engine with a unique combustion chamber design that enhances power output and efficiency.
For those who want the power and glory of electric starting*, there’s the push-button start EF4000DE with all the same features and specs as the manual-start EF4000D.
Thanks to its extra-large fuel tank, the EF4000DE/D can run continuously for 8.2 hours at rated load without refueling.
The EF4000DE has the convenience of electric starting*.
Full power, full time 120/240 dual voltage which allows you to run multiple appliances that require 120 or 240 voltage making it highly versatile.
Yamaha’s Oil Watch warning system prevents engine damage, avoiding costly repairs and minimizing down time.
Full power, full time 120/240 dual voltage — Highly versatile.