Generac 8251 GP2500i 2,500-Watt Gas Powered Portable Inverter Generator
Generac 8251 GP2500i 2,500-Watt Gas Powered Portable Inverter Generator
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Generac 8251 GP2500i 2,500-Watt Gas Powered Portable Inverter Generator

4.4 stars out of 368 reviews
(4.4)|
368 ratings
Generac 8251 GP2500i 2,500-Watt Gas Powered Portable Inverter GeneratorGenerac 8251 GP2500i 2 500 Watt Gas Powered Portable Inverter GeneratorGenerac iQ5200 5 200 Watt Dual Fuel Electric Start Portable Inverter Generator with CO Sense 49 STGenerac iQ5200 5 200 Watt Dual Fuel Electric Start Portable Inverter Generator with CO Sense CARBGenerac 7153 GP3300i 3 300 Watt Gas Powered Portable Inverter GeneratorGenerac iQ3800 3 800 Watt Dual Fuel Electric Start Portable Inverter Generator with CO Sense 49 STGenerac iQ3800 3 800 Watt Dual Fuel Electric Start Portable Inverter Generator with CO Sense CARB
Size:2500W
Capacity:2500-Watt

Key item features

  • Quiet Operation: Quiet and neighbor friendly, fully enclosed design dramatically reduces noise levels
  • Clean Power: TruePower TM Technology provides clean, stable power ideal for sensitive electronics, tools, and appliances
  • Parallel Ready: Allows you to connect two GP2500i inverter generators for twice the power
  • COsense Technology: Powerful protection against hazardous carbon monoxide with automatic stops and alerts
  • Portable Design: Compact and lightweight with a built-in handle for easy transportation
  • LED Indicators: Alerts you when the unit is low on oil, overloaded, or ready-to-use
  • Easy Startup: Integrated off/run/choke knob simplifies startup procedures
  • USB Port: USB port available to charge mobile devices
  • Low-Oil Shutdown: Automatically safeguards engine from incurring damage due to low oil levels
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Current price is $649.00
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  • Free shipping
  • Free 30-day returns
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Fort Wayne, 46816
Arrives by in 3+ days
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Sold and shipped by GENERAC POWER SYSTEMS
4.231884057971015 stars out of 5, based on 69 seller reviews(4.2)
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$770.64
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Shipping, arrives by Fri, Feb 13 to Fort Wayne, 46816
Sold and shipped by The Factory Depot
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About this item

Product details

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Customer ratings & reviews

4.4 out of 5 stars
stars368 ratings360 reviews
How item rating is calculated
  1. 5 stars67% (246)
  2. 4 stars18% (68)
  3. 3 stars7% (26)
  4. 2 stars2% (7)
  5. 1 star6% (21)

Reviews summary

Pros
  • : Offers great value at this cost.
  • : Can operate with either gasoline or propane.
  • : Made for easy maneuverability with pull-up design and wheels.
  • : Provides enough power for essential appliances.
  • : Uses minimal amount of fuel.
Neutral
  • : Offers intuitive design, but can be complex for some users.
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Showing 1-3 of 360 reviews

Nov 25, 2025
Greywolf43
5 out of 5 stars review

So far its perfect

I bought the iQ3500 for my off-grid cabin to help charge my battery bank when solar is not an option. I also use it to run a small a/c unit when its hot. I have over 120hrs on it and have never had an issue. Its very quiet and has never given me any issues. For what I need it to do it seems perfect.

Review from generac.com
Helpful?4V8STCU2V8A111345772346
Oct 27, 2025
Bob Y
5 out of 5 stars review

Worked as advertised. Saved my food supply!

Used it twice now for neighborhood wide power outages. It has enough power to keep a refrigerator, freezer and some electronics going. For the first outage I had charged the battery and it started with the electric start. For the next outage, battery wasn't charged enough. However, the pull start worked easy on the first try.

Review from generac.com
Helpful?4V8STCU2V8A111345772346
Dec 18, 2025
All Star Liquors
5 out of 5 stars review

Great Features, Nice Package, Nice Price!

Got a decent deal on this product, was looking for a nice inverter generator to serve as a backup option for our small business. My only gripes on this is that you have to take off the side panel to service the oil (would rather there be a way to check and fill oil without a screwdriver) and that the Off/Run/Choke knob was easier to turn and gave some sort of haptics or snap to indicate that you are on proper setting (Run vs. Choke).

Review from generac.com
Helpful?4V8STCU2V8A111345772346