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AMERISUN

AMERISUN 4500W Gas-Powered Inverter Generator, CO-Sensor, Lightweight, Quiet EPA Compliant for Home, Emergency Backup, Camping, Tailgating, 2025 Version

  • Based on 151 reviews
Condition: New
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Availability: In Stock.
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Arrives Saturday, Aug 29
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Set name: 4500W Gas Generator


Features

  • POWERFUL PERFORMANCE- 4500W of peak power and 3600W of running power, this gas generator is built to support demanding loads from household essentials, RV systems, or tools on the job site. Its designed to deliver steady output when you need it most
  • QUIET OPERATION- Producing only 76dB(A) of noise from 23 feet away, this portable inverter generator offers a quieter experience than traditional units. Ideal for creating a more peaceful atmosphere while camping or using it around the house
  • DURABLE & PORTABLE- At just 68.8 lbs and measuring 21.2 x 17.7 x 20.9 inches, this compact model is easy to lift, move, and store. Whether you're working off-site or preparing for outages, this portable generator for home use keeps mobility simple
  • LONG-LASTING POWER- The 1.6-gallon fuel tank allows up to 5.1 hours of continuous operation at 50% load, minimizing refueling interruptions. If youre looking for efficient inverter generators for extended outdoor use or short-term emergencies, this one delivers
  • SAFETY FIRST- Equipped with a 223cc 4-stroke gas engine and compliant with EPA standards, it features carbon monoxide detection, low oil shutoff, and overload protection. These built-in safeguards keep your gas generator for camping operating securely wherever you take it

Description

Proudly American-born and made in the USA, our mission is to deliver tech-driven, rugged generators, lawnmowers, snow blowers and pressure washers—elevating outdoor care with smart performance to nurture vibrant, thriving spaces worldwide. Visit the Store Amerisun 2500W gas generator delivers dependable power in a compact size, ideal for camping, tailgates, and light backup needs. Visit the Store Amerisun 3800W gas generator provides stable performance for home backup and outdoor use, balancing strong output with easy operation. Visit the Store 5000W gas generator delivers high-output performance for demanding tasks, supporting tools, appliances, and backup power with ease. Visit the Store Visit the Store Visit the Store 4500W GENERATOR 3800W GENERATOR 2500W GENERATOR 5000W GENERATOR 3800W GENERATOR

Brand: AMERISUN


Wattage: 2.5 KW


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Camping


Voltage: 12 Volts (DC)


Output Wattage: 4500


Special Feature: Lightweight


Included Components: AM5020


Color: Red


Wattage: 2.5 KW


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Camping


Voltage: 12 Volts (DC)


Output Wattage: 4500


Additional Features: Lightweight


Engine Type: 4 Stroke


Ignition System Type: recoil start


Tank Volume: 1.6 Imperial Gallons


Engine Displacement: 223 Cubic Centimeters


Total Power Outlets: 3


Engine Power Maximum: 4.5 Kilowatts


Starting Wattage: 4500 Watts


Running Wattage: 3600 Watts


Smart Home Compatibility: Not Smart Home Compatible


Frequency: 60 Hz


Runtime: 5 hours


Brand Name: AMERISUN


Included Components: AM5020


Model Name: AL5040C


Model Number: AL5040C


UPC: 840432711064


Manufacturer: Amerisun Inc.


Manufacturer Part Number: AM5020C


Unit Count: 1.0 Count


Item Type Name: portable generator


Warranty Description: 2 Year Warranty


Item Dimensions L x W x H: 19.3"L x 16.88"W x 16.5"H


Color: Red


Material Type: Metal


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 29

This item is non-returnable:

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

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Love this generator!
Set name: Portable 3800W Gas Generator
Super nice generator Very good quality build. Runs and works great. Starts on first pull, does not burn much fuel! Even enough power to start and run my compressor.
Reviewed in the United States on April 18, 2026 by Michael S.
    • 3800W Portable Inverter Generator
Set name: Portable 3800W Gas Generator
Great quality!! Thank you
Reviewed in the United States on June 25, 2026 by Elba Enriquez
    • Defective Unit- Poor Customer Service
Set name: 3800W Gas Generator
Very disappointed in this purchase. I bought the generator in May but did not unbox it until August when I needed to use it. I added the recommended oil and fresh gas. It fired up after 3 pulls, I moved the dial from CHOKE to ON, it ran for 8-10 seconds and it shut off automatically. After multiple attempts and the same result, I contacted Amazon who said I was past my 30-day return/support window from them- They directed me to the manufacturer. The generator company requested photos of the internal wiring harness and a video of what is happening. I sent what they needed. Their engineers determined it to be a faulty wiring setup and directed me back to Amazon to get a replacement sent to me for the faulty unit I received. Amazon said since it's been more than 30 days from my purchase, they cannot help me. Amazon said to contact the generator company directly for a replacement. I'm in the middle of the back and forth and still have a defective generator. I asked the generator support team why can they not ship me a replacement since they determined this to be a defective unit. Why would this not warrant a replacement covered under the 1-year warranty program- it's brand new and has never been used. They said they cannot ship a replacement and I need to take it to one of their service centers, which is over 30 miles away to get it looked at. I have now found out the certified repair shop I was directly to is no longer handling repairs for covered items, and they have directed me back to the manufacturer for a replacement unit. I have never had this much resistance and pushback from any product I've purchased from Amazon and their partnering companies, and we've been Amazon customers for 16 years. Extremely disappointed. ... show more
Reviewed in the United States on September 9, 2025 by Eric M. Brown
    • Best quality for the money…
Set name: 3800W Gas Generator
This turned out to be a very reliable generator. We have lived in out travel trailer for the past 6 years and I’ve bought several generators. I asked AI to pick from a couple generators I was thinking about and AI picked this one. Very much like a Honda generator and more powerful than it looks. Only complaint is they call this generator the quite one…it’s not that quite, actually about normal compared to others…It will stop running if you allow any wind to blow towards the exhaust.. The CO2 detector will turn it off easily….great on gas…last, no way to tell how much gas is in it when filling so have overfilled more than once… ... show more
Reviewed in the United States on September 11, 2025 by Dan Melcher
    • Great generator for the price and easy to maintain
Set name: 4500W Open Frame Inverter Generator
I've been running one of these units for over 100 hours now and it's fairly easy to use, easy to maintain, and so far after 100 hours of operation has worked very well. So far the only issue is trying to find a replacement air filter as the size isn't quite standard and being a newer model the company doesn't have any suppliers listed. Another thing to know is the same hole the oil goes in is the same hole the oil comes out so you do have to tilt it to change the oil. However, this unit is not very heavy to pick up and move around. It can use a variety of oil grades, but I just use a standard 10w-30 non synthetic. Don't forget to give it an oil change after each 20-40 hours of use and to periodically check on the air filter (every ~50 hours). I haven't had to mess around with spark plugs just yet. If you're looking for a decently priced generator with enough power to use a freezer, power up a desktop computer, charge a power station (300wh), and cooking with an air fryer all at the same time plus more this unit will do nicely, especially when compared to conventional generators (this one is inverted) as the lights do not flicker when using more watts. The 4/5 star rating is mainly due to the difficultly in finding replacement parts directly from the manufacturer as the company states this a newer model and does not have that information at this time. I've also been testing different octanes of fuel with this unit too. The instructions call for a standard 87 octane, but I've found that using 93 octane provides an extra 2-3+ hours of operation per tank (1.6 gallons). ... show more
Reviewed in the United States on May 5, 2025 by George H.
    • This generator works great for me
Set name: Super Quite 2500W Small Generator
I bought this generator to use on a five day camping trip because my old one died. It ran almost non-stop for those five days and worked great. It ran my fridge, TV, and battery charger just fine. So far so good.
Reviewed in the United States on December 14, 2025 by JustSteve
    • Generator
Set name: 4500W Gas Generator
Worked the first 1000 hours then carb started flooding and stopped working.
Reviewed in the United States on April 30, 2026 by Thomas R.
    • Great Generator 👍 love this little guy
Set name: Super Quite 2500W Small Generator
Make sure you put the cap on or off. Depending when using it. I learned the hard way. Make sure to brake in for an hour then change oil. Great generator for my detailing business. Gasoline efficient. Helpful when needed. Easy start quiet under 2000 watts or on eco mode.
Reviewed in the United States on October 9, 2025 by elmer mateo

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