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Customer reviews for Generac 8917 GP18000EFI 18,000-Watt Gas-Powered Electric-Start Portable Generator for
Generac 8917 GP18000EFI 18,000-Watt Gas-Powered Electric-Start Portable Generator
4.6 out of 5 stars
stars
1,729 ratings1,729 reviews
  1. 5 stars78% (1,354)
  2. 4 stars15% (253)
  3. 3 stars2% (41)
  4. 2 stars1% (20)
  5. 1 star4% (61)

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Showing 161-170 of 1,729 reviews
Feb 3, 2021
Reviewer name: BP
4 out of 5 stars
4 out of 5 stars review

Big enough for the job.

Shaky start with this machine. Dead battery out of the box and loose contacts in the outlets. Wheels adequate for concrete, but wish they were larger and fatter for moving through gravel. Starts easily. Noise is at 73 DB as stated. Factory Service center took care of the battery problem, but wasn't concerned about loose contacts in outlets. Duh. Sometimes no juice comes out of the 110v side. Have to fiddle with the plugs to make contact. Had a short power failure after purchasing and debugging the generator. Decided to wait for daylight before hooking up generator, but by then power was back on. Because of the garage door design, I will make a shed for the generator's outside storage next to the 220V receptacle. Secondary purpose for the generator is to power the community well in our plat, if needed; hence the need for wider tires when moving the generator through the gravel to the pump house. I think the generator is worth the cost, but am sorry the Factory quality control was sloppy. I wish the factory would actually run the machine and completely test it prior to shipping. A little odor in the gas tank at the store is a small price to pay for enhanced reliability. Nice to have features: a battery feedback circuit, and an output meter advising how much wattage is being drawn by the system being supported by the generator. Best advice I can offer to a buyer is buy the generator in June or July. I didn't get around to purchasing my generator until winter, and there was no selection available in two Counties. This machine was literally the only generator of this class available. I went looking for an 11,000 watt machine and had to settle for this 8,000 watt machine. I think it will run the pumphouse. Maybe I'll never have to find out.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Sep 5, 2013
Reviewer name: pdb
5 out of 5 stars
5 out of 5 stars review

Good value for the money.

I got a great price on the GP7500 (no electric start) so decided not to suffer through a power outage at the cottage again. It went together easily and my 13 year old started it with the first pull or two. haven't needed it yet, but I'm confident it will do the job well. One drawback is that I had expected it to run quieter.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Feb 24, 2023
Reviewer name: Scott
4 out of 5 stars
4 out of 5 stars review

First Impession not good, Sence then perfect

Bought this generator as a home back up. First use was a long term power outage in cold weather. After 17 hours it pushed the little gasket/bushing out of a fitting where the two wires go through the crank case for the low oil sensor, It puked all the oil out of it on my driveway until the low oil sensor shut it off. Not good at 2am in 5 degree weather. In the dark I thought it blew up with all the oil. Diagnosed it the next day, pushed the bushing back in place with silicone sealant. Sense then it's been perfect. I like the generator now but at 2am the first use I was frustrated. I would still recommend this generator as I think this was a fluke and it's been perfect since

Review from generac.com
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May 29, 2025
Reviewer name: jenniferj536_8816
5 out of 5 stars
5 out of 5 stars review

Quality, Portable Power!

[This review was collected as part of a promotion.] This thing is a beast- in the best way! Its quality and I love the rugged wheels it comes with making it portable. The best feature is the tri fuel. It’s great to have multiple options to power it. Worst part is how heavy it is and trying to get the wheels attached.

Review from influenster.com
Helpful?698EZRGTDSV513631905214
Sep 15, 2018
Reviewer name: RetNavChief
5 out of 5 stars
5 out of 5 stars review

Excellent value.

I bought this generator for back up power for my farm house a few days before Hurricane Florence. It was easy to set up, easy to start and provided all the power I needed to keep lights on and water for my horses. A great investment. I highly recommend this generator.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Sep 7, 2019
Reviewer name: Tim
5 out of 5 stars
5 out of 5 stars review

Quality product

Our power has been out for the last 3 days from hurricane dorian, this generator has worked great. We switched our house over to the Generac 8000W generator as soon as we lost power. Fired up AC, some lights, a few receptacles and refrigerator, WORKS GREAT and has worked for us on a tank of gas for 17hrs. HOT HUMID days with no power, glad we have our Generac generator.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Sep 25, 2018
Reviewer name: Zjohnson12
5 out of 5 stars
5 out of 5 stars review

Great features!

[This review was collected as part of a promotion.] I received this generator for my honost review. I’m so glad I did because This generator is perfect! It has the capability of powering a lot of items at once! It does have some weight but is super sturdy. It has an electric start. A cradle for easy moving. It does have some noise while running but nothing outrageous! Very nice to have!

Review from generac.com
Helpful?698EZRGTDSV513631905214
Nov 22, 2011
Reviewer name: Granny 65
4 out of 5 stars
4 out of 5 stars review

Great for emergency power

I am a 65 yo woman who needed son to do initial set up before Hurricane Irene. After that I was able to service my generator myself. It ran window air conditioner, tv, computer and refrigerator and some lights, I am very pleased and recommend this product.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Mar 19, 2025
Reviewer name: Peter63
2 out of 5 stars
2 out of 5 stars review

No power :(

Well, I bought this a couple years ago to use when we go camping. I used it once and had no issues. Today I got it out to power my furnace in the house. None of the outlets have power. I checked the breakers and no luck. I tried the GFCI, but it won’t trip because of no power.

Review from generac.com
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Dec 31, 2014
Reviewer name: Patriot3031
5 out of 5 stars
5 out of 5 stars review

Waiting for a big storm to put it through a real test

I wasn't sure what generator to buy, but the many positive reviews of the GP7500E helped sway my decision. Everything is checking out so far: it was easy to assemble and it started right up using the electric start. I'm looking into installing a manual transfer switch next. I'm a little concerned about keeping the generator maintained and ready to go if I won't need it for years to come.

Review from generac.com
Helpful?698EZRGTDSV513631905214