5,500/4,000-watt genmax dual fuel open frame inverter with co sensor + clean inverter technology three-quarter front view of a portable inverter generator with orange fuel tank and black tubular frame, control panel with automotive-style digital display and CO sensor indicator, visible duplex 5-20R, TT-30R and 14-50R outlets plus USB-A and USB-C, propane fitting and wheels, 160cc engine housing and recoil-start area visible — suitable for camping, RV use, and outdoor backup power.
5,500/4,000-Watt Genmax Dual Fuel Open Frame Inverter With CO Sensor + Clean Inverter Technology
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Genmax Power

5,500/4,000-Watt Genmax Dual Fuel Open Frame Inverter With CO Sensor + Clean Inverter Technology

|55 ratings

Smart summary

Generated by AI
  • Runs Gas Or Propane

    Runs Gas Or Propane

    Dual fuel technology lets you choose between gasoline and propane based on availability.
  • Safe For Your Electronics

    Safe For Your Electronics

    Safely powers electronics like laptops, phones, and TVs.
  • Weighs Under Sixty Pounds

    Weighs Under Sixty Pounds

    At less than sixty pounds, this generator is easy to lift and transport.
  • Up To 5500 Watts

    Up To 5500 Watts

    Generates up to 5,500 starting watts to run multiple appliances at the same time.
  • Clear Digital Data Display

    Clear Digital Data Display

    The digital display gauges let you easily monitor performance stats while in use.

Specifications

  • Robust Engine: 160cc OHV high performance 4 cycle engine. Fuel-efficient, reliable, powerful providing long life and excellent heat dissipation.
  • High Output: 5,500 starting watts with 4,000 running watts. At only 65dB this powerful portable inverter generator is the ideal product for your tailgating and camping needs.
  • Low Idle With Portability: Lightweight for easy transport weighs less than 60lbs! Low idle technology gives you a run time of 8 hrs at 50% load with a 2.11 gallon fuel tank.
  • Easy To Use Control Panel: The control panel consists of CO sensor indicator light, automotive inspired digital data center display, 1x Duplex 5-20R 20A 120V, 1xTT-30R 30A 120V, 1x 14-50R 50A 120/240V, 1x USB-A, 1xUSB-C
  • In Compliance With Latest Standards: In compliance with PGMA, UL2201 and CARB 2024
  • Made in Japan for high quality customer satisfaction
Current price is $549.00
Prices may vary in club and online
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Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Mon, Nov 9
Return or replace anytime.
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About this item

Product details

In need of reliable power outdoors? We've got you covered with this Genmax 5,500-Watt dual fuel open frame inverter generator. Perfect for all your recreational needs, it features a powerful 160cc OHV engine and offers a high output of 5,500 starting watts with 4,000 running watts on gasoline and 4,950 starting watts with 3,200 running watts on propane. Clean inverter technology lets you safely use laptops, smart phones, speakers and TVs. The control panel consists of CO sensor indicator light, automotive inspired digital data center display, 1x Duplex 5-20R 20A 120V, 1xTT-30R 30A 120V, 1x 14-50R 50A 120/240V, 1x USB-A, 1xUSB-C
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Key specifications

Specifications

  • Robust Engine: 160cc OHV high performance 4 cycle engine. Fuel-efficient, reliable, powerful providing long life and excellent heat dissipation.
  • High Output: 5,500 starting watts with 4,000 running watts. At only 65dB this powerful portable inverter generator is the ideal product for your tailgating and camping needs.
  • Low Idle With Portability: Lightweight for easy transport weighs less than 60lbs! Low idle technology gives you a run time of 8 hrs at 50% load with a 2.11 gallon fuel tank.
  • Easy To Use Control Panel: The control panel consists of CO sensor indicator light, automotive inspired digital data center display, 1x Duplex 5-20R 20A 120V, 1xTT-30R 30A 120V, 1x 14-50R 50A 120/240V, 1x USB-A, 1xUSB-C
  • In Compliance With Latest Standards: In compliance with PGMA, UL2201 and CARB 2024
  • Made in Japan for high quality customer satisfaction

Member ratings & reviews

4.6 out of 5 stars
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55 ratings54 reviews
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  1. 5 stars78% (43)
  2. 4 stars13% (7)
  3. 3 stars2% (1)
  4. 2 stars2% (1)
  5. 1 star5% (3)
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Showing 1-3 of 54 reviews

Jul 18, 2025
Reviewer name: Mark1991
5 out of 5 stars
5 out of 5 stars review

Dual fuel!

I purchased this from Sam's Club online right when I saw it. I've been looking for something that had a propane option because its alot cleaner burn and it doesn't gunk up when you don't use it often. From receiving it, to unboxing it, everything was packaged and shipped well. They took their time with this one. Putting the wheels and handle on was a breeze. Genmax put everything needed to build and fully operate this amazing machine. Also it came with solid rubber wheels not cheap plastic wheels. Its very light and easy to maneuver. Customer service was great as well. I called to ask more about the generator and they were very helpful and full of knowledge. When you have customer service like that, thats how you know this is a great product. I followed all the instructions given and it started right up. It was very quiet and powerful enough to run my deep freezer and refrigerator for hours as I was performing a remodel in my garage. This is a great product and I highly recommend it.

Helpful?203545W6M89A16529772528
Jul 23, 2025
Reviewer name: Thechosen1
5 out of 5 stars
5 out of 5 stars review

Genmax Power!

By far the best open frame inverter technology generator on the market! Genmax is doing something right since these guys always seem to be ahead of the game with these new bells and whistles. This thing looks and feels sturdy too compared to other competitors. I have used many other manufacturer brands and by far Genmax is the way to go. The unit had arrived perfect and came with a bunch of accessories which was impressive. I was able to power up my skill-saw for some wood that I needed to chop up where no power was present. This generator powered up this 15 amp appliance with ease. You can’t beat the price and with 33 amps available at 120V. The best part is their support center is actually very knowledgeable for those who need help, and they carry all parts in stock! Sold!!!

Helpful?203545W6M89A16529772528
Jul 22, 2025
Reviewer name: FL2025
5 out of 5 stars
5 out of 5 stars review

Dual fuel generator is great !

I bought this as I really liked the option to use duel fuel - Propane and Gasoline. We always have extra propane tanks for BBQ and now can be used for this generator. I also like the gauges, very easy to see and use. When it arrived I was surprised by the compactness and frankly I thought it would weigh more. I was able to move it around myself. Finally, upon using it, the 5500 watts is plenty for everything I need to get done. I highly recommend this Generator.

Helpful?203545W6M89A16529772528
Current price is $549.00
Prices may vary in club and online
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Mon, Nov 9
Return or replace anytime.

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