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AMERISUN

Portable Inverter Generator 4500W, Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency Backup, Camping, EPA Compliant

  • Based on 39 reviews
Condition: New
Product info up-to-date
$388.85 Why this price?
Save $1,210.15 was $1,599.00

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Mar 4
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Style: 4500W-CO Alarm


Features

  • HIGH POWER OUTPUT: With a starting wattage of 4500W and a rated wattage of 3600W, this generator provides ample power for your home, RV, or job site needs
  • EXTEND RUNTIME: Equipped with a 1.6-gallon fuel tank, it offers an impressive 5.1 hours of runtime at 50% load, ensuring long-lasting performance without frequent refueling
  • SUPER QUIET OPERATION: Operating at a sound pressure level of 76dB(A) at 23 feet, this generator is designed to be quiet, making it ideal for use in residential areas or during camping trips
  • DURABLE & PORTABLE: Weighing 61.29 lbs and featuring a compact design (19.3 x 16.9 x 16.5 inches), this generator is easy to transport and store, perfect for on-the-go power needs
  • SAFETY FEATURES: Powered by an EPA Compliant 223cc 4-stroke gas engines and includes multiple safety warnings and features such as carbon monoxide detection, low oil level shutdown, and overload protection, ensuring safe and reliable operation

Brand: AMERISUN


Wattage: 4500 watts


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Residential


Voltage: 120 Volts


Output Wattage: 4500


Special Feature: CO Sensor, Fuel Efficient, Super Quiet


Included Components: AM5040 Genertor


Color: Red


Brand: AMERISUN


Wattage: 4500 watts


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Residential


Voltage: 120 Volts


Output Wattage: 4500


Special Feature: CO Sensor, Fuel Efficient, Super Quiet


Included Components: AM5040 Genertor


Color: Red


Product Dimensions: 19"L x 16"W x 16"H


Model Name: AM5040


Engine Type: 4 Stroke


Ignition System Type: electric start


Tank Volume: 2.7 Gallons


Engine Displacement: 223 Cubic Centimeters


Total Power Outlets: 3


Starting Wattage: 4500 Watts


Running Wattage: 3600 Watts


UPC: 840432707241


Manufacturer: Amerisun Inc.


Item Weight: 60.9 pounds


Item model number: AM5040


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 4

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Best product best price just like a predator or Honda
Style: 2500W w/CO
Absolutely love it I took the case off added heat proof sound dampening foam starts everytime never surges nor does it cut off due to over voltage the power rating is prestige and accurate
Reviewed in the United States on July 2, 2025 by Jesse R.
    • Can’t beat the price
Style: 2500W w/CO
Great generator and great price
Reviewed in the United States on December 8, 2025 by Ronald Leggins
    • Very cheap product
Style: 4500W-CO Alarm
we purchased six of these units all at once. set them up all exactly the same with the same oil and gas. 2 units work perfectly fine, 4 of them do not run at all. The plastic parts are loose, things are falling out and mechanically they are awful.
Reviewed in the United States on July 24, 2025 by Daniel Frederick
    • Compact & well built!
Style: 4500W-CO Sensor
Great size & weight, works well, runs furnace, fridge and lights with ease. Please note, it does not come with oil (10/W/30) in it.
Reviewed in the United States on January 30, 2026 by Gary
    • Effectiveness of the inverter generator
Style: 4500W-CO Sensor
This is an essential item. I bought it one month before Melissa hit Jamaica, and it stood up to the challenge. It runs extremely well, and the instructions were clear. I run it for four hours. The power is great and can be used on all your appliances. I recommend the purchase. One disadvantage it was a bit noisy ... show more
Reviewed in the United States on November 5, 2025 by kay
    • Follow directions
Style: 2500W w/CO
Great!
Reviewed in the United States on February 4, 2026 by Donna Kirkland
    • Highly recommend for home backup or outdoor use!
Style: 2500W w/CO
This generator has been a lifesaver! It starts easily and provides enough power to run all our essential appliances during outages. The build quality is solid and it runs smoothly without being too noisy. I especially appreciate the fuel efficiency and how long it lasts on a single tank. It’s also portable enough to move around when needed. I feel much more prepared now for any power failure. ... show more
Reviewed in the United States on May 8, 2025 by Evelyn Marrero
    • Great buy…
Style: 3800W-CO Sensor
The media could not be loaded. This runs laps around any 3500+ watt generator. I’ve almost put 7 hours on it and going to change the oil at 10. Starts right up first pull the few times I’ve ran it. Very quiet and for the price, it’s a steal. If you’re in the fence, don’t be and buy it. Doing my hurricane prep running a 10k btu window unit just in case and it’s pretty quiet. ... show more
Reviewed in the United States on May 10, 2025 by Mike Marsh

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