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Yamaha EF4500iSE 4500 Watt Inverter Generator

Yamaha EF4500iSE
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  • Yamaha Standard Warranty
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Price: $2,995.00

   Current Availability: In Stock - Orders Received by 2PM PST Ship Same Day
Product Code: EF4500ISE

Description Specifications Shipping & Terms

Genuine Factory New Yamaha Generators

The 4500 Watt EF4500iSE weighs 194 pounds, starts with ease with its electric starter, and is capable of running an RV air conditioner, microwave oven and more all at the same time. Designed to be acoustically sound, this extremely quiet generator (53-60 dBA) features Smart Throttle which allows greater fuel efficiency and noise reduction. It will run up to 19 hours at ¼ rated load on a tank of gas. With features such as Built-In Wheels, Electric Start, and an Oil Watch Warning System, the EF4500iSE is one of the most powerful portable medium-range inverters!


  • The EF4500iSE picks up where our extremely successful EF3000iSEB leaves off, with even more power and fuel efficiency in a quiet, portable package. Designed for maximum fuel efficiency and minimum noise, its super-powerful engine allows it to run at the very low engine speed of just 2600 rpm - 1000 rpm lower than other generators it its class.
  • That slow engine speed pays off big time in reduced fuel consumption as well as less noise, vibration, and engine wear. Up to 15.2 hours run time ant 1/4 rated load.
  • The EF4500iSE features Noise Block sound reduction system which makes it a very quiet generator for its output. 58-60 decibels.
  • 4500 watt maximum output, 4000 watt rated continuous output suitable for running most 15,000 BTU RV air conditioners and 1000 watt microwave oven, or two major RV appliances, simultaneously.
  • Electric start makes starting effortless-turn the key to start and power appliances you want and you can add an optional wireless remote control for easier starting.
  • Yamaha’s Oil Watch Warning System helps prevent engine damage from low oil and provides added peace of mind.


  • 4500 watt maximum output, 4000 watt rated continuous output ‐ Suitable for running most 15,000 BTU RV air conditioners and 1000 watt microwave oven, or two major RV appliances simultaneously.
  • Noise Block sound reduction system ‐ Very quiet 58-60 decibels.
  • Low speed running ‐ Using the most powerful engine in its class to run at a constant ultra low speed of 2600 rpm to reduce gasoline consumption, extend running time between refueling and reduce noise and engine wear.
  • Up to 15.2 hours running time at one quarter rated load between refueling.
  • 50 state legal ‐ Meets CARB emission regulations and given highest EPA rating.
  • Pulse Width Modulation Inverter System ‐ Sine wave as clean as or cleaner than household electricity. Suitable for computers, televisions, satellite TV systems and other sensitive electronic equipment and appliances.
  • Optional wireless remote control ‐ Start and stop the generator from up to 66 feet away.
  • Electric start ‐ Effortless turn the key to star.
  • Automatic choke ‐ Easy starting even in cold climates.
  • Low oil warning system ‐ Shuts the engine off to protect the engine if the oil level drops.
  • Power meter ‐ Easy to read meter indicates the amount of power being used and the amount that’s available.
  • Hour meter ‐ Displays the amount of running time accumulated to indicate servicing or refueling interval.
  • Twin bar ‐ Aids in lifting and loading. Also utilize for transport and anti-theft security.
  • Gas gauge ‐ Indicates amount of gasoline to indicate refueling interval.
  • Factory warranty ‐ Covers the entire generator for defects in parts and workmanship for three (3) years.
  • Stylish design ‐ Attractive and practical.
  • Four wheels with parking brake ‐ Easy transport and security.
EF4500iSE and EF6300iS
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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 44 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 generator July 31, 2020
Reviewer: Anonymous Person  
very quiet, works as advertised. a  little on the heavy side to take on our RV.

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  0 of 0 people found the following review helpful:
5 of 5 Awesome July 12, 2020
Reviewer: Rodney Clay from Willow Spring, NC United States  
Used it this weekend and it is so nice to have the generator close to you and not even hardly able to hear it very Quiet
Ran it 11 hours straight and used less than a half of a tank of gas was just pulling fans and a couple Rc battery chargers so wasn't running much of a load on it but was still impressed.
And national supply was awesome to deal with and can't find a better price any where Larry was great and the other 2 people I talked with sorry don't remember there name but every one was great will definitely be buying from them again

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  0 of 0 people found the following review helpful:
5 of 5 Awesome Inverter / Generator May 30, 2020
Reviewer: The Ice Cream Shack, LLC from BRIDGE CITY, TX United States  
This generator is great.  Quiet operation and handles all of our equipment in our concession trailer.  The staff at National Supply were professional and eager to help in assisting in sizing the needs for a generator.  Quick delivery!  Thanks National Supply!!

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  0 of 0 people found the following review helpful:
5 of 5 Purchase Review May 19, 2020
Reviewer: Robert Nelson from Santa Clarita, CA United States  
I've only had the new generator for a couple of weeks now...however, to date, I wish I would have purchased it years ago!  I ordered it on line and the unit was at my house the next day!  It was extremely easy to unpack, install the battery, oil and gas and it started up the first time!  Put a few different loads on it and they were handled NO PROBLEM.

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  0 of 0 people found the following review helpful:
5 of 5 Great purchase! April 22, 2020
Reviewer: Anonymous Person from Henderson , TX United States  
Yamahagenerators had the best price by far that I could find on the EF4500ISE generator plus free shipping and 0 tax! Shipping was fast and I was very pleased with the way the generator was packaged and secured on the pallet. Left CA and arrived in East Texas with nary a scratch. I would not hesitate to buy here again.

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