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 31-40 of 1,696 reviews
Jul 15, 2025
JLMc
5 out of 5 stars review

My Generator

This generator is a beast, I haven’t had a power outage yet but I ran it for 12 hours on a tank of gas just to try it and it didn’t miss a beat, I could run anything in the house with no problems, it’s a little expensive but anything that’s worth having usually is especially in the winter months in Michigan and I am so glad I have a backup plan 😊

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jul 12, 2025
brianh51_8915
5 out of 5 stars review

First impression, this is heavy and more than I ne

[This review was collected as part of a promotion.] The generac 9500 is nice. However it is heavy, like 265 lbs. I thought I would be able to use it more but not a lot of opportunity at this point. It stays tucked in the garage. It does make some noise but not as load as my old air compressor. Overall I think it is a good product I just don’t have a lot of use for it. I requested it to see if this app would sent me something that big. Knowing Influenster will I will be more targeted in the future. Initial impressions on the 9500 are great. That being said I am not a hard use.

Review from influenster.com
Helpful?698EZRGTDSV513631905214
Jun 7, 2025
angien114_2042
5 out of 5 stars review

Great in an emergency

[This review was collected as part of a promotion.] The generac portable generator has come in real handy during our spring storms. We've had bad storm blow through our area this year and power goes out easily. My husband hooked up the generac to our fridge and a few other household things and it may our time without power so much easier. It is not very loud and it's easily to move around. When our power came back on we brought it to our sons house so they could run things Everyone's benefits from this.

Review from influenster.com
Helpful?698EZRGTDSV513631905214
Sep 10, 2025
VKA2
1 out of 5 stars review

Poor Warranty Assistance

Purchased this portable generator, had a problem with it after 15 min. of running.. Called for assistance and No One would come to my house to repair it. They only would come if it was a standby generator. I like Generac Products but my was 450 pounds and I could not service it myself. Plus it was under warranty.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Aug 7, 2025
colleenmdougherty_8465
5 out of 5 stars review

A Life-Saver!!!

[This review was collected as part of a promotion.] We’ve lost power four times this summer due to intense Philly storms, and I can honestly say the Generac Tri-Fuel Portable Generator 50ST came in clutch every single time. Setup was straightforward, and the tri-fuel option (gasoline, propane, or natural gas) gave us flexibility depending on what we had on hand. We mostly ran it on propane, and it powered everything we needed — fridge, lights, fans, and even the Wi-Fi — without breaking a sweat. The runtime is solid, and the peace of mind it gave us during outages was worth every penny. It’s not the lightest piece of equipment, but it’s built to last and easy to move with the wheels. Noise level is totally manageable for a unit this powerful. If you live in an area prone to storms or unreliable power, this generator is an absolute game-changer. After this summer, I wouldn’t be without it.

Review from influenster.com
Helpful?698EZRGTDSV513631905214
Jul 14, 2025
home1234
5 out of 5 stars review

Recommend the GP8000E to power a home

The GP8000E works well for running our whole house. We had an outage for 2 days and were able to run our whole house without any issues. We have a well water pump, AC, refrigerator, freezer, lights, etc. We did not encounter any issues. The portability works well for moving and storage.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jun 11, 2025
No name
1 out of 5 stars review

Not impressed

We bought a Generac brand new & it didn’t work straight out of the box. We’ve had 2 service calls & they still can’t figure it out. We’re waiting on another part. Parts take forever to get & then you have to call & chevk bc they don’t call you. Not happy at all!

Review from generac.com
Helpful?698EZRGTDSV513631905214
Sep 16, 2025
DDDD5555
3 out of 5 stars review

Works fine, but super-loud

In reality, I only used this for about 20 minutes when the power came back on. This replaces a very old generator that had half the power. Aside from it working well, I can certainly say this generator is deafeningly-loud. Keeping it outside means you typically won't be bothered by it, but it makes you wonder if they could have improved the muffler.

Review from generac.com
Helpful?698EZRGTDSV513631905214
Jul 28, 2025
princsskik_5636
5 out of 5 stars review

An upgrade

[This review was collected as part of a promotion.] This generator is fantastic in quality, as one would expect from the leaders in generators. We live in Florida and store insulin along with medical equipment that has to be charged regularly so this is a must for power outages. I hated not knowing if we'd have enough gas to last us, but having three fuel sources relieves my mind. Our house has natural gas already, and we regularly have multiple LP tanks, so it's nice not having to worry about gas fumes from storing gasoline or trying to find gas during storm prep unless we want to. It's a bit large for traveling with it, but this would be an awesome unit for camping if you need a lot of plug-ins powered up and have a truck bed to load it on. The unit itself is easy to start, and easy enough to wheel around short distances. It has multiple outlets to connect into, and a panel to show how long it's running. It's really simple to use, although we have solar on our house so we can't connect into the main panel without some extra costs, so extension cords are the maximum of our experience so far. The unit is quieter than our previous model despite it being larger.

Review from influenster.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