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Yamaha EF4500iSE 4500 Watt Inverter Generator
Yamaha EF4500iSE
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Free 1-Year Warranty
Price: $3,059.10

   Current Availability: In Stock - Orders Received by 2PM PST Ship Same Day - SEE REDUCED PRICE IN SHOPPING CART

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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: 5 of 5 Total Reviews: 24 Write a review »

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  0 of 0 people found the following review helpful:
Product Yamaha EF4500iSE 4500 Watt Inverter Genera October 20, 2017
Reviewer: Peter Blackmore from The Villages, FL United States  

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  0 of 0 people found the following review helpful:
Great Generator and Great Shopping Experience May 27, 2017
Reviewer: Tracy Szymanski from Marana, AZ United States  
The generator was shipped the same day I ordered it and I got it in two business days.  The generator was extremely well packed.  Absolutely no damage found.

The Yamaha EF4500iSE is just the size we need for our Hybrid camp trailer. The generator is shipped dry so after adding the included Yamalube oil, filling the battery with acid (also included), and adding fuel, the generator fired right up. It's super quiet!

I found nothing but positive reviews on this Yamaha generator. National Supply had the best price I could find, free shipping with lift gate service, included free oil, fuel treatment and an additional 1 year of warranty. Best experience I have ever had with an online company.

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  0 of 0 people found the following review helpful:
Great online buying experience May 10, 2017
Reviewer: Rob from NE. United States  
Fast delivery right to my door. No complaints here!

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  0 of 0 people found the following review helpful:
yamaha 4500 inverter May 12, 2016
Reviewer: Curt Stein from Allentown, PA United States  
i'm not sure about how great the generator is yet, but the purchase experience was very good.  I highly recommend  yamahagenerators.com  The package arrived as described and timely.

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  0 of 0 people found the following review helpful:
Excellence Experience April 18, 2016
Reviewer: Lori Lamprecht from Anthem, AZ United States  
Order the generator and remote kit separately.  It was package together and was delivered early.

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