Skip to Main Content
Sams Club
Sams Club
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
stars1,696 ratings1,696 reviews
  1. 5 stars79% (1,332)
  2. 4 stars14% (245)
  3. 3 stars2% (40)
  4. 2 stars1% (20)
  5. 1 star3% (59)

Member photos

  • +99 images
Sort by |
Showing 21-30 of 1,696 reviews
Jan 25, 2017
BooInTheWoods
5 out of 5 stars review

Verified Purchase

Rural Essential !

Living rural, having back up power sources are a must. It’s an investment in the tools that helps forced, rustic living tolerable. Consider the top 3 best pieces of equipment and get learned about them. I know you will choose Generac also.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jan 25, 2017
Dave
5 out of 5 stars review

Verified Purchase

I like everything about it.

I've only had the opportunity to use the generator a couple of times but it does everything I could ask. This unit actually has enough power to run essentials for myself and my neighbor. He's got the snow thrower and I've got the generator.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Oct 12, 2025
dgangloff5547_281
5 out of 5 stars review

Easy to assemble and use

[This review was collected as part of a promotion.] Where to start! This thing is heavy! After reading the instructions assembly seemed easy enough! It was about 30 minutes for assembly. I like that it has wheels making i extremely easy to move. The handle locks in place to move it and unlocks to store it. We are in the Midwest in an old neighborhood that has consistent power outages. This will make those days so much less stressful! We added the oil and fuel. It had a gage to show how much fuel is in it. After connecting the battery it took a couple of tries to start, I am guessing allowing for the fuel to cycle through. It has a push start and a pull start. It tells you hw much run time it has which is really convenient. You just push the button to stop. It was not extremely loud I would say comparable to a lawn mower in way of noise. It has a consistent run time of 10 hours which is great we've never been without power quite that long! It has 4 outlets. This has a 30 amplifier fpe 240 volts with a gfi outlet.

Review from influenster.com
Helpful?698EZRGTDSV513631905214
Nov 9, 2025
Timmmm
4 out of 5 stars review

Works as it should.

This was a warranty replacement for my 3300. I removed and applied thread lock compound to all the fasteners because of the previous generator failure. This new one works as it should. I don't like the handle because it collapses when trying to push generator backwards.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jan 29, 2026
Pottsville
2 out of 5 stars review

Didn't even get a chance to use it/ it failed.

I bought this new generator new in the box for our deer camp. We unboxed it and added the oil and clean gasoline and started it. It was gushing gas out of the carb so we had to shut it down. When we called Menards to bring it back for an exchange they said that they don't take them back and we had to bring it to a certified repair shop that was 75 miles away from our camp. Needless to say, we didn't have a generator for deer season because the repair shop was booked. When I picked it up the owner said that the carb was full of gunk and that he couldn't even charge Generac for the repair because it was a fuel issue. how could that be possible when it was brand new out of the box? I am very disappointed that we have a generator that could be a lemon and the repair shop didn't get paid!

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jan 29, 2026
chrisfromct
5 out of 5 stars review

Overall, very good quality and features.

Just bought this a month ago and haven't had the need to use it yet. But I did have to assemble the handle, wheels, add oil and gas and start it. My review is solely based on that. The wheels were relatively easy to assemble, keeping in mind that the machine is heavy and you will need to lift it on blocks, or use a helper. They give you a perfectly shaped funnel to add the oil. Don't lose it. The handles are easy to install and conveniently fold down when not in use. They make it very easy to roll around on the two wheels. You also need to connect the battery wires, which they don't explain very well. Remember Red is positive, Black is negative. My only gripe is with the gas tank cover, though. It is very large, and very low profile, and it is in a sunken area of the tank. It is very difficult to get a grip on it to remove as it is also very tight. Why did they make it like this? I've never had any machine have a cap like this. It does have a convenient fuel level bubble. The gas tank is 8 gallons, not just 5 like my older model. It is rated at a continues 8KW, although the 240V 4-prong cable that connects to the breaker panel is only capable of carrying 7.2KW. You need to use the 2 120V outlets to get a total of 8KW. Keep in mind that the battery does not get recharged by running the engine. You have to use the included wall charger. Although, a single start is not going to use much power, so you don't need to worry too much about always keeping the wall charger connected. But definitely charge it fully when it is new. It has picture-based instructions on the frame. But they aren't very useful as they pictures are too small to figure out what they are saying. Remember to turn the fuel shutoff to ON and set the choke to ON when starting it.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Sep 10, 2025
JH25
1 out of 5 stars review

Terrible services for defective products

Unit was defected. No output power. None of authorized shop recommend can fix it. Could not refund to due to crazy FleetFarm policy. Running around for 2 weeks trying to get it fix. Loss $20 to drain gas not cover by warranty. Terrible experience. Don't recommend it.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jul 17, 2025
172pilot
4 out of 5 stars review

Great Unit

I purchased about a month ago. Generator arrived in good condition, and unpacking and getting ready to use was well instructed, but a bit more time consuming than I had thought it would be. Only "semi-complaint" is the unit is very loud. It would get a five star from me if the muffler system made the unit a bit more quiet.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jun 23, 2025
Bad product
2 out of 5 stars review

Not impressed with Generac equipment and parts

Bought GP8000E in Feb 2025. Only had to use 4 times, had no problems until now June 20, 2025. Now one of the GFCI output units keeps tripping after 7 seconds with nothing plugged into it. The reset button keeps popping out. Tried pushing the reset button also. The GFCI is bad, this problem should not be happening after only 4 uses. The unit is only 5 months old. Generac reports they have none of these GFCI units in stock and do not know when they will be available to ship. Generac service dealer tells me I need to leave the unit with them and possibly in 2 to 6 weeks they may get an new GFCI unit. UNBELIEVABLE !!!

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jul 15, 2025
EastLansingMI
5 out of 5 stars review

Purchased in the Nick-Of-Time !

I worked hard to find a full service dealer and settled on FD-Hayes, Lansing MI and was extremely pleased with their recommendations for this unit, installation and training. I had this installed on a Monday and literally that Thursday we lost power for 4 days and this unit performed admirably. The safety-switch mechanism on the breaker box was foolproof and the electric start was a real help. I ran it about 24 hours on a single tank of gas, it saved my frozen foods and kept my fridges at temp. I didnt use AC and that is not really a problem as I knew going in that AC would not be viable with this unit.

Review from generac.com
Helpful?698EZRGTDSV513631905214