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GP2500i

Model #8251

Starting At

$679.00 MSRP Where To Buy

GP2500i 2500-Watt Portable Inverter Generator with COSENSE® Technology 

2200 Running Watts / 2500 Starting Watts Portable Inverter Generator  

The GP2500i inverter generator provides outdoor enthusiasts with a portable power solution designed for a variety of open-air festivities. From weekends in the woods to outdoor cookouts and get-togethers, these models provide the stable power you need without disturbing neighbors or surrounding wildlife.  

Using TruePower™ Technology, the GP2500i produces the clean power required by a variety of sensitive electronics, tools and appliances. Compact and fully-enclosed, its lightweight design makes transportation easy, and its Economy mode feature also reduces fuel consumption rates and noise emissions to operate quietly for extended periods of time.   

Whether you’re tailgating for the big game or simply want to enhance your campsite experience without disrupting the environment around you, Generac’s GP2500i inverter generator is right for you.  

Quiet and neighbor friendly, fully enclosed design dramatically reduces noise levels 

TruePowerTM Technology provides clean, stable power ideal for sensitive electronics, tools and appliances  

COsense® Technology: STOPS. ALERTS. SAVES. Powerful protection against hazardous carbon monoxide.

Compact and lightweight makes transportation easy with built-in handle   

Economy Mode automatically adjusts engine speeds to save fuel and reduce sound emissions  

Integrated Off/Run/Choke Knobsimplifies startup procedures  

LED Indicators alert you when unit is low on oil, overloaded or ready-to-use  

USB ports to charge mobile devices  

Parallel Ready allows you to connect two GP2500i inverter generators for twice the power   

Low-Oil Pressure Shutdown – Automatically safeguards engine from damage 

Covered outlets provide added protection from the environment   

<strong>GP2500i 2500-Watt Portable Inverter Generator with COSENSE® Technology  </strong>

Features


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Rated 5 out of 5 by from You get what is advertised I decided that going without electricity and having the basement flood after the last hurricane was more stress than I wanted in my life. I did a lot searching on the internet for a generator that would give me the best peace of mind. I settled on the Generac 5940 GP6500- 6500 Watt Portable Generator (5940). I paid for the tail gate service and it was delivered very promptly and wheeled up to my house. Assembly was extremely easy. I put oil and gas in it as directed, and with one pull it was running. A few weeks later I had the "Transfer Switch" installed and we killed all power to the house, started the generator, and flipped the transfer switch to the operating position. Everything we had connected (which was just about everything except central air conditioning) was powered on. We even ran water until our well pump turned on and the generator never even hesitated or appeared to be under strain. So if we ever lose electricity again, especially for a long duration of time, the neighbors will see that we have heat, water, and lights. They will all be welcome! Thanks Generac for supplying a product that truly is what is advertised. In today's world it is nice to see some honesty in advertising.
Date published: 2011-11-23
Rated 5 out of 5 by from Job site generator we got this generator July of 2020 and it has ran 14+ hours a day 5 days a week and all we had to do is change oil and put gas in it for the 15,000+ hours that it has ran.
Date published: 2024-04-19
Rated 1 out of 5 by from Nice looking unit, but difficult to start initially Unit will not now start, no matter how many times I pull starter rope. Only has about 30 hours on it. Good fuel and spark plug. Don't buy this unit , I am very disappointed!!
Date published: 2024-04-06
Rated 1 out of 5 by from Customer Service and Warranty issues I bought this generator after doing my research and wanted to get one with a great warranty and a company that would stand behind their product. I got neither. Long story short had an issue with the generator after initial break in process. Oil was coming out of the top end and most places where it shouldn’t be, I have it well documented. Took it in to certified retailer to get warranty work done and Generac refused to pay for a dime. I have had issues contacting their customer service reps and so on.
Date published: 2024-04-03
Rated 2 out of 5 by from Hard to start and you can’t get to the spark plug. Because it’s kind of an idiot proof user interface. You can’t turn the gas off, so I’m sure it floods itself regularly. If you want to check the spark plug you can’t because the sound insulation is cockeyed to the plug so you can’t get a socket on it I might have to take a knife to it, or just buy a Honda.
Date published: 2024-03-29
Rated 4 out of 5 by from This review is for a GP3300i I haven’t used it very much, just a couple times at home. We bought it for camping with our travel trailer. It is very quiet and responds quickly under load. So far so good. When camping season starts in Michigan we will be using it a lot more. I think it will work great for our application.
Date published: 2024-03-24
Rated 2 out of 5 by from Stop working Used it for summer, last day of boondocking the generator stop working. The pull start cable started falling apart. I did all the maintance. I didnt even have it for a whole year.
Date published: 2024-03-18
Rated 1 out of 5 by from Beware: Generac's GP2500i Inverter Generator Warranty Nightmare Our company, a respected establishment in Downtown Chicago with a remarkable 4.8-star rating from hundreds of satisfied customers, has long relied on Generac equipment. Despite our confidence in the brand, our recent experience with the GP2500i inverter generators has been a profound disappointment, exposing serious flaws in Generac's warranty system and customer support. Unprecedented Maintenance Issues: Investing over $700 per unit, with multiple generators on each of our trucks, we expected impeccable quality and service commensurate with our investment. However, two of our GP2500i generators began experiencing problems just months after purchase, despite meticulous maintenance by our in-house technicians, following Generac's recommended procedures to the letter. Generac's warranty department proved utterly ineffective, offering no solutions beyond directing us to service repair dealers who repeatedly refused to honor the warranty. It wasn't until January, after weeks of frustration and wasted time, that we finally secured promises of replacements from Kristin D. Yet, even this proved to be another ordeal. Endless Trips for Failed Repairs: In February alone, we endured four roundtrip journeys totaling over 200 miles to the repair facility, all in vain attempts to rectify the persistent issues plaguing our generators. Despite clear documentation and undeniable evidence of malfunction, Generac failed to resolve the matter or provide any meaningful support. Public Exposition of Warranty Breakdown: The gravity of our situation was underscored when a prominent figure and their company documented the malfunctioning generator in a video posted online. This public exposure should have prompted swift action, yet our contacts at Generac, Kathy F. and Candace M., offered only empty assurances. Even with widespread attention and pressure mounting, Generac remained unresponsive. A Plea to Potential Buyers: It's inconceivable that a product priced at over $700 each should bring such frustration and disappointment. As a reputable establishment, we expected better treatment and support from Generac, a sentiment shared by many in our community. Generac's failure to honor its warranty promises and provide adequate customer support is unacceptable. We urge anyone considering the GP2500i inverter generator to seek alternatives. Don't make the same costly mistake we did. 1-Star Warning Review: Avoid Generac's GP2500i Inverter Generator at All Costs! We've experienced a nightmare with Generac's GP2500i inverter generator, encountering issues six times across two different units on our company trucks. Despite regular maintenance and adherence to recommended procedures, both units suffered from persistent malfunctions. Our attempts to seek warranty support were met with frustration and delays, with service repair dealers turning us away multiple times. After months of back-and-forth, promises of replacements, and wasted trips to repair facilities totaling over 200 miles, we've had enough. Even a public exposé of our ordeal failed to prompt meaningful action from Generac. It's been six months since our initial problems arose, with no replacement units in sight. Considering the hefty price tag of $700 per unit, this level of incompetence and disregard for customers is unacceptable. If you value your time and money, steer clear of Generac's GP2500i inverter generator.
Date published: 2024-03-17
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GP2500i - 8251 is rated 4.5 out of 5 by 1639.
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The Power to Live. Work. Play.

Portable generators are a welcome addition to many activities at home, at work, and away. In an emergency, portable generators can provide critical backup power. They make camping and tailgating more comfortable. And contractors appreciate the flexibility portable power brings to the jobsite.