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Generac 7129 GP3000i Inverter Generator

  • Based on 3,637 reviews
Condition: New
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Style: GP3000i

Pattern Name: Generator


  • PowerRUSH Technology - Delivers over 50% more starting capacity-allowing you to do more with less
  • Quiet inverter power - reduces sound emissions and provides optimal performance
  • Easy to carry - compact & lightweight with built-in handle
  • Truepower - clean power for sensitive electronics. ItemWeight: 59.5 pounds
  • USB outlets and parallel ready - connect 2 units together for double the power


Generac's GP3000i Inverter Generator provides you the power you need wherever you need it. Ideal to quickly start and operate power tools, RV Air conditioners and other motor driven equipment. Featuring Generac's POWERRUSH patented technology that delivers over 50% more starting capacity allowing you to do more with less. The PowerDial integrates START/RUN/STOP functions into one simple-to-use dial while the (2) USB outlets allows you to charge smart phones, tablets and other electronics. Connect two inverters together for twice the power (parallel kit sold separately).

Product Dimensions: 22.2 x 13.3 x 18.4 inches

Item Weight: 59.5 pounds

Manufacturer: Generac Power Systems

Item model number: 7129

Is Discontinued By Manufacturer: No

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 17 – Apr 19

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

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Top Amazon Reviews

  • Just one word. WOW
Style: GP3300i Pattern Name: Generator
I have owned other generac products before and have been disappointed by them, ironically the last generac generator I owned was a gp3300, and that model was a standard pull start model not inverted and not clean power. This is the total opposite of that. This thing is totally silent, so quiet we chained it to one of the blocks at our fireworks tent for we were afraid someone might steal it. Anyway I got this to directly replace the noisy older GP 3300 and I have to say this is one of the best generators I have ever owned. As mentioned this thing is near silent, even under full load it's near silent. It provides roughly 3100 Watts continuously for our purposes. During the day it ran a mini glass door refrigerator, register, open sign, and two portable AC units. At night this thing ran the lighting that was built into the fireworks tent without a hiccup, it also ran 8 100 Watt led ground floodlights to light up the banners outside the tent, and because it cooled off at night we could just run fans instead of the AC units. This thing ran nearly continually for 2 weeks as our fireworks tent is 24 hours. The fuel efficiency on this thing is incredible, It would go through a gallon of fuel every 4 hours with it running at 3100 watts output, at night when you could audibly hear it was in eco mode I would fill it up at 10:00 p.m. (it only holds about a gallon of gas) and then I wouldn't have to refill it again until the sun was coming up (approximately 6 am). Your fuel efficiency directly depends on how much power you are pulling from the unit, we never made it pop a breaker, but I guess we did get it to push out too much power once when we didn't turn things on one at a time, and it over surged, the check engine light came on, and about 20 seconds later before I could get to the generator it cut out the motor and turned off. I restarted the generator and made sure to turn on the refrigeration units one at a time, when I did that I was pulling equal load and it handled it a lot better. As of using the USB ports directly on the front, I did not get a chance to, as I would not leave my phone charging on the generator which had to be outside of the fireworks tent and far enough away that it couldn't start anything on fire, so I haven't had a chance to try it, but when I do I will update this review. I will also post longevity updates so people know what to expect on how long one of these will last. We have infrequent power outages where I live, maybe a couple times a year, and usually not for more than a few hours, so this will definitely be handy to keep all of our food cold... I will post updates as the unit ages. ... show more
Reviewed in the United States on July 22, 2022 by Mas

  • Honda may have met it's match
Style: iQ3500 Pattern Name: Generator
Using this for piwer in our RV while we build, and it is amazing. We have pretty light consumption, using propane for heat and hot water, so this runs the fridge, a dehumidifier, a TV, and a couple of lights while keeping the battery topped off. I get about 13 hours between fill ups, and it is QUIET! Oil changes are a pain - recommend getting a piece of tubing to put over the fill port and through the port on the side of the casing for mess free draining. ... show more
Reviewed in the United States on December 31, 2022 by Mason

  • Price and noise level
Style: iQ3500 Pattern Name: Generator
2nd unit I've owned . We'll built and easy to move. Noise level is awesome and able to power my 30amp Rv. Price was great as well . I bought during the holiday pricing. Great generator for off grid living.
Reviewed in the United States on January 8, 2023 by Em

  • Excellent genset to keep your refrigerator, fans, and small electronics running in emergencies!
Style: GP2200i Pattern Name: Generator
Ordered on September 4, the day the State of Emergency was declared here in Florida for Hurricane Irma, with plenty of time to get it fueled up and oiled up and checked out before we lost power early morning of the 11th. Generator handily powered both a side-by-side refrigerator and a small chest freezer, as well as a desktop PC, cable internet modem and wifi router, and various fans and LED light fixtures, all simultaneously, along with intermittent use of a hot plate and 700 watt microwave. Typical runtime with that load was 9 - 10 hours. Overnight we would disconnect the refrigerator and freezer (both stayed plenty cool overnight) and run the unit on Eco Mode from about midnight to 8am, and then would boil enough water for coffee and tea using an electric kettle, and fry up a quick breakfast using an electric hotplate before hooking up the fridge and freezer again. This load would get us about 12 hours on a tank of gas. I estimated for our purposes it used about 2 1/2 gallons per 24 hours of runtime. For the first couple of days we ran only ethanol-free gas through it, after that we had to refill our cans and had to settle for what we could get, but the generator still seemed to run fine on E10. Would still only recommend a quality branded ethanol-free gas however. After the initial breakin period, replaced manufacturer provided oil with Mobil 1 5w-30 that I already had, but when we got our internet service back and reading some threads and advice on the forums, replaced that after 24 hours with Shell Rotella T6 5W-40 to get a little more safety margin running in the Florida heat. Also, the Rotella was on sale for $21 for a gallon, which I figure will probably last me quite a few years with this generator. Pros: - Compact and relatively lightweight. About the size of a bulky suitcase. - Quiet. My neighbor's portable non-inverter gensets were for the most part perceptibly louder to me inside my house than this thing unless it throttled up to handle a transient load. Overnight at minimal load it was difficult to hear over the fan I had running in my bedroom. On the back porch, it was impossible to hear from the street, which much reduces the odds of it becoming a target for theft, which is important considering how easy it would be to carry this thing off. - Sips gas. We didn't have any 5 gallon gas cans before the storm, only two 2 Gal cans, a 2 1/2 Gal can, and a 1 Gal can. That would have been enough to last us the entire outage of 3 1/2 days of constant running including what I had already put in the generator. 3 5 gallon cans + a 2 1/2 gallon can (to make the generator easier to fill) should last an entire week. - Easy to start. All it needed was to turn the dial from Off to Choke or Run, make sure the gas cap vent was turned to On, and Eco Mode was turned to Off. The starter cord was easy to pull, and the machine usually started on the first or second pull. Not really a Con: - Can't always start our side-by-side refrigerator on Eco Mode. Turning Eco Mode to Off keeps the generator running at high idle, which is good for quickly handling transient loads like starting electric motors, but uses more gas. Eco Mode drops the running speed down to the minimal possible idle for the current load and only spins back up as increasing load is applied, saving gas. I found that sometimes our fridge refused to start when the generator was in Eco Mode, as the generator couldn't spin up fast enough to handle the demand. The fridge's compressor would trip off in overload while the generator spun up to maximum power, then reset and try again a few minutes later, repeating the cycle. It wasn't consistent, and I think whether the Generac could start the fridge in Eco Mode depended on how recently the fridge had been running [liquid refrigerant in the compressor makes for hard starts] or if other loads on the generator were keeping the speed enough that it could respond quickly to the demand from the fridge. At any rate, the fridge started every time when I turned Eco mode off, and then once started I could turn the Eco Mode back on to let the generator slow down again. As I didn't want to leave the genset in Eco Mode Off full time to make sure the fridge would start if I wasn't attending to it, I would disconnect the refrigerator overnight. Our chest freezer never had a problem, and I expect newer and small fridges than our 17 year old GE side-by-side wouldn't either. This isn't enough to subtract a star from my rating, just my observation. Altogether, I highly recommend this little generator for exactly the purpose we used it for, which was to keep essential appliances running through an extended power outage. I think many people would also find this generator to also perfectly suit their needs for brief voluntary periods off the grid, such as tailgating, camping, weekends at the cabin, or running power tools and electronics at a remote job site. ... show more
Reviewed in the United States on September 15, 2017 by Jason Osmond

  • Its Nice
Style: iQ3500 Pattern Name: Generator
it dioesnt start very easily with the electric start. Takes 5 sometimes more tries to start it up using the electric start. The pul start works perfect though. Any ways, raise from that this generator is nice I love it. Id buy another one. The digital LCD screen is a good feature, tells gas, amps, watts, volts, hours, oil change etc. Super happy about that! ... show more
Reviewed in the United States on January 2, 2023 by Tommy Trenton Jr

  • Bought for camper and was super quiet without a full load.
Style: iQ3500 Pattern Name: Generator
Bought for the camper at deer camp. As far as noise goes it was surprisingly very quiet. On eco mode setting it generally only revved up for the Keurig coffee maker. Running just lights and the camper gas heater fan kept it on the lowest RPMs and a quiet night in camp. Very happy so far!
Reviewed in the United States on December 26, 2022 by Jason Otto

  • Great unit. Kept the furnace running.
Style: GP2200i Pattern Name: Generator
Bought this last year and have had two multiple day power outages since then. Most recently ran it for 48 hours straight in a single digit blizzard. Worked like a champ. Kept furnace, fridge, a light and TV running with little effort. Tank of fuel lasts 7+ hours. Didn’t have to top off the oil once. Starts on one pull. ... show more
Reviewed in the United States on December 25, 2022 by MWS

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