Search  for anything...
AMERISUN

Portable Inverter Generator 4500W Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency Backup, Camping, EPA Compliant 2025 Version

  • Based on 28 reviews
Condition: New
Checking for the best price...
$379.90 Why this price?
Save $449.10 was $829.00

Buy Now, Pay Later

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

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. 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

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Mar 8
Order within 19 hours and 16 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Style: 4500W-CO Sensor


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
  • 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 68.8 lbs and featuring a compact design (21.2 x 17.7 x 20.9 inches), this generator is easy to transport and store, perfect for on-the-go power 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
  • 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: Camping


Voltage: 12 Volts


Output Wattage: 4500


Special Feature: Lightweight


Included Components: AL5040C


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


Brand: AMERISUN


Wattage: 4500 watts


Fuel Type: Gasoline


Power Source: Fuel Powered


Recommended Uses For Product: Camping


Voltage: 12 Volts


Output Wattage: 4500


Special Feature: Lightweight


Included Components: AL5040C


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


Model Name: AL5040C


Engine Type: 4 Stroke


Ignition System Type: Recoil start


Tank Volume: 1.6 Gallons


Engine Displacement: 223 Cubic Centimeters


Total Power Outlets: 2


Engine Power Maximum: 3.6 Kilowatts


Starting Wattage: 4500 Watts


Running Wattage: 3600 Watts


UPC: 840432709412


Manufacturer: Amerisun Inc.


Item Weight: 60.9 pounds


Item model number: AL5040C


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

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.

Similar Products

Top Amazon Reviews

    • Easy to use
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.
    • Junk, cheap, tested far below specs
So it says you can return but then when you try it says you can't, I'll let the credit card companies fight that out this things is so cheap, it's a joke. Days it can do over 3000 watts but I can check with a meter and it starts surging at 500 watts and shuts off the motor at 1100 watts. This company thinks there little bait and switch will work, I'm an administrator on the biggest RV and boondocker site and this thing is getting a lively review for all 80k members, they'll never sell another one to rvers. ... show more
Reviewed in the United States on April 22, 2025 by Gary Oldham
    • Compact size and reasonable price
As of now,I have not used it but I gave 5 stars due to it's compact size,it's not as heavy as other generators and it has the extra features on it,seems like a very durable generator all in all at a reasonable price,I'll repost when I get the chance to use it.
Reviewed in the United States on May 2, 2025 by Sheila
    • First
Easy use and once by follow instructions started right up and tested usage for my trailer rv.
Reviewed in the United States on May 5, 2025 by Van Edward
    • Junk
Review Image by Anderson Anderson
Peace junk Use one time only and not working no more JUNK Start bottom broken Not start no more First time use Spark plug bad
Reviewed in the United States on November 29, 2025 by Anderson Anderson
    • Great generator for the price and easy to maintain
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.
    • WARNING
Very difficult to start. If you get it going and need to shut it down to refuel it no way will restart until it is cold and then the odds are 50/50. Regret I bought it.
Reviewed in the United States on June 9, 2025 by Amazon Customer
    • built cheap
so bad and a pain in the butt. CHEAP FOR A REASON -Mobile Detailer
Reviewed in the United States on July 15, 2025 by Hulksmash

Can't find a product?

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