Search  for anything...
AMERISUN

AMERISUN 3800W Portable Inverter Generator, Gas Powered Quiet Generator

  • Based on 166 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$419.99 Why this price?
Save $239.01 was $659.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Set name: 3800W Portable Generator


Features

  • 3800W STABLE OUTPUT FOR HOME BACKUP- This portable inverter generator with CO sensor delivers 3800W of power with a 149cc 4-stroke OHV single-cylinder gas engine and a forced air cooling system. Its a reliable choice among generators for home use, especially during power outages or weather emergencies
  • COMPACT AND READY FOR ADVENTURE- At only 50.7 lbs, this gas generator for camping is easy to lift and carry. With a built-in handle, its perfect for outdoor trips, from campgrounds to tailgates, and even works well as a portable generator for boat power needs
  • QUIET POWER, LONGER RUN TIME- Running at just 70dB from 23 feet, this unit is one of the quieter inverter generators. ECO Mode helps reduce fuel use, delivering up to 10 hours of runtime at 25% loadideal for late-night use or extended workdays
  • VERSATILE OUTLET SETUP FOR MULTI-USE- Outfitted with 2 AC outlets (120V 20A), 2 USB-A/C ports (25V), 1 DC car port (12V), and 1 RV outlet (120V 30A), this gas generator supports everything from RVs to small appliances. For larger needs, connect another unit to get 7200Wgreat for campers or jobsites needing mobile power
  • CERTIFIED FOR CLEAN, NATIONWIDE USE- This model is EPA-certified and CARB-compliant, making it a responsible option in the category of portable generators for home use. Whether youre prepping for storms or heading off-grid, its a dependable solution

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. Amerisun 2500W gas generator delivers dependable power in a compact size, ideal for camping, tailgates, and light backup needs. Amerisun 3800W gas generator provides stable performance for home backup and outdoor use, balancing strong output with easy operation. 5000W gas generator delivers high-output performance for demanding tasks, supporting tools, appliances, and backup power with ease. 3800W Inverter Generator 2500W Inverter Generator 4500W Inverter Generator 5000W Inverter Generator 4500W Inverter Generator

Brand: AMERISUN


Wattage: 3800 watts


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Camping, Commercial, Residential


Voltage: 12 volts_of_direct_current


Output Wattage: 3800


Special Feature: CO Sensor, Portable, Super Quiet


Included Components: AL5035C


Color: Red


Wattage: 3800 watts


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Camping, Commercial, Residential


Voltage: 12 volts_of_direct_current


Output Wattage: 3800


Additional Features: CO Sensor, Portable, Super Quiet


Engine Type: 4 Stroke


Ignition System Type: recoil start


Engine Displacement: 149 cubic centimeters


Total Power Outlets: 6


Starting Wattage: 3800 watts


Running Wattage: 3800 watts


Frequency: 60 hertz


Runtime: 10 hours


Item Dimensions L x W x H: 21"L x 13"W x 19"H


Brand Name: AMERISUN


Included Components: AL5035C


Model Name: AL5035C


Model Number: AL5035C


Number of Items: 1


UPC: 840432711545


Unit Count: 1 Count


Manufacturer: Amerisun Inc.


Item Type Name: portable generator


Manufacturer Part Number: AM5035


Warranty Description: 2 YEAR


Color: Red


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 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
    • 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
    • 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
    • Easy to use
Set name: 4500W Open Frame Inverter Generator
Awesome generator. Got this for my camping trips, and i love this thing. It was my first generator. Easy to start, and has tons of power. I ran 4 sets of strings lights, xbox, projector, and a fan. No issues. Not as quiet as id like, but very useful.
Reviewed in the United States on August 6, 2025 by hector v.
    • good product for the money
Set name: Portable 3800W Gas Generator
works as intended good product
Reviewed in the United States on August 3, 2026 by CAROL L WAGNER
    • 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.
    • 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
    • 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.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...