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Internet # 202538952

Model # 5940

6,500-Watt Gasoline Powered Portable Generator

  • Generac OHV engine delivers a long life of reliable power
  • Low oil shutdown safeguards engine from damage
  • 8000 starting watts and 6500 running watts.
  • View More Details
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Product Details

About This Product

This Generac GP6500 8,000-Watt Gasoline Powered Portable Generator is ideal for use as a backup power source during home emergencies, camping excursions, jobsite tasks and outdoor events. This generator offers four 5-20R 120-Volt outlets and 1 L14-30R Twist-Lock 120/240-Volt outlet with covers for protection from tampering and debris.

Highlights

  • 8,000-Watt peak and 6,500-Watt running power provides reliable power for home emergency use, camping, jobsites and outdoor events
  • 7.2 Gal. fuel tank runs the generator continuously for up to 10 hours on 50% load
  • 389cc engine runs on gasoline
  • Four 5-20R 120-Volt outlets and 1 L14-30R twist-lock 120/240-Volt outlet
  • Outlet covers offer protection from the elements
  • Circuit breakers help provide overload protection
  • Muffler helps ensure quiet operation
  • Hour meter tracks maintenance requirements
  • Automatic shut-off when oil levels are low to help prevent engine damage
  • Wheels and handles help provide easy portability
  • Includes engine oil and quick-start guide
  • Click on the more info tab to download the specifications pdf to view the wattage requirement guide
  • Does not come with power cord
  • Click here to shop all Generac products
  • Return Policy

Product Information

Internet # 202538952

Model # 5940

Specifications

Dimensions: H 25.0 in, W 26.75 in, L 28.75 in

Dimensions

Product Height (in.)25.0 inProduct Length (in.)28.75 in
Product Width (in.)26.75 in

Details

ApplicationJob Site, RecreationColor FamilyOrange
Engine Displacement (cc)389Engine MakeOEM Branded Engine
FeaturesAutomatic Voltage Regulation, Fuel Gauge, Low Oil Shutdown, MufflerFuel Tank Capacity (gal.)7.2 gal
Full load fuel consumption (gallons/hour)1Half-Load Run Time (Hours)10
Horsepower (hp)0 hpIncludedEngine Lubricant, Wheel Kit
Operational Volume (dB)0.0Outlet Type120V 20A, 120V 30A, 240V 30A
Power/Fuel TypeGasolineProduct Weight (lb.)184 lb
Returnable30-DayRunning Wattage6500
Start TypeRecoil StartStarting Wattage8000
Suggested UsesLights, Mobile Devices, Power Tools, Small Appliances, Small Electronics, Sump Pump

Warranty / Certifications

Certifications and ListingsEPA ApprovedManufacturer Warranty2-year

Questions & Answers

95Questions
caret
Q:Do you have to put a rod in the ground to ground the generator?
by|Aug 30, 2020
2 Answers
Answer This Question

A:  No you do not. You can find more information on grounding Generac model #5940 in the owner's manual on page 8, https://www.generac.com/service-support/product-support-lookup/product-support-details?productid=cb1dc460-351b-4f5b-89f5-4d9895daeceb

by|Aug 31, 2020

    A:  Hi Mannie, no you do not.

    by|Aug 31, 2020
    caret
    Q:Why is this showing as discontinued when Home Depot in Sunrise FL was selling 40 of them today du...
    by|Aug 31, 2019
    2 Answers
    Answer This Question

    A:  The Generac model #5940 may be discontinuing at select Home Depots, but Generac still carries the product. Contact your local Home Depot for more information.

    by|Sep 4, 2019

      A:  It looks to me that they sold all of the discontinued ones at full price as they now sell the newer improved GP 6500 model 7672 for what I paid for the discontinued one and that is not right

      by|Sep 4, 2019
        caret
        Q:can this be out in the rain or snow?
        by|Oct 23, 2018
        4 Answers
        Answer This Question

        A:  You have to protect the unit from rain or snow. Moisture and electricity don't mix well. Rain is obvious and may blow from an angle or side ways. Snow might accumulate and melt and create a problem. You don't want to short out the generator. I recommend that you build a simple enclosure to protect it from the weather, even if you operate it on your patio. I built a three sided enclosure and operate my generator on the patio. The open side allows air to circulate and keep the generator cool while protecting it.

        by|Oct 23, 2018

        A:  Yes, you can run this unit during snow or rain, as long as it is under a protective covering.

        by|Oct 23, 2018

          A:  During inclement weather, such as a storm, please be advised that we don't recommend running the unit in a downpour or storm. However if you need to run it in rain or snow, there are a few steps that should be taken. Please note that any damage to the unit due to running it in the rain/snow is not covered by a warranty. 1. The unit needs to be properly grounded. Local codes will dictate what that means for your area. 2. The alternator end and the control panel should be facing away from the prevailing winds to prevent water entering the alternator or control panel. 3. The unit should never be run indoors or in an enclosed area. The unit does need to be outside with a minimum distance of five feet all around the unit (including the top) for airflow.

          by|Oct 23, 2018

            A:  it might be ok for a while but it will not help it any. rain, snow, and electricity do not mix real good anyway.

            by|Oct 23, 2018
            caret
            Q:what power cord do you use?
            by|Oct 6, 2018
            2 Answers
            Answer This Question

            A:  We recommend using any of our 30A cords with NEMA L14-30 ends. The cords are available in 10ft. (model #6327), 25ft. (model #6328), and 50ft. (model #6329).

            by|Oct 11, 2018

              A:  Power cord type will depend on application. If a simple 110 volt household idem such as microwave, hair dryer, even tv a standard 16 Gage extension cord will work. bigger items like a welder or large power tool 110 volt a 10 Gage cord will be better. The 240 volt cord will vary drastically upon application. I would ask an in store associate for answers on that one.

              by|May 6, 2023
                Showing 1-4 of 95

                Customer Reviews

                4.7 out of 5
                • 4.7 out of 626 reviews
                • 95% recommend this product
                Filter by:
                Showing 1-10 of 626 reviews
                Having Issues
                I am in the middle of Hurricane Ida. I decided to spend the money to get another generator as my Briggs and Stratton was getting more difficult to run. I purchased the generator and it ran fine for 10 hours. It ran out of gas and I filled it up with gas and it would not crank. I pulled the spark plug and cleaned it and it would not fire. I went to the store to ask about possible issues. I was told to put more oil in it. I already put the quart supplied and I was told to fill it up. I returned home and filled it up with oil. I even replace the spark plug and still no fire. I loaded up the unit and got another one. Got home, it ran for 1 hour and stopped. I went outside and cranked it again. It ran for 5 minutes and stopped. I removed all but one extension cord and removed the air breather and it is now running but i dont have much confidence in it. I drove 45 minutes 3 times to get it to work. It is very hot and I am trying to stay positive but its getting more difficult. I called Generac 3 times and the customer service reps were nice but none could tell me why I was having these issues. Its not easy to return as the unit is heavy and I have to stuff it in a car. I also am trying to work during this time as well as get all the damages to my home repaired. I thought Generac would be a good brand and perhaps I just got two bad apples in a row. I did not overload the unit and used strong extension cords. I dont have time to return it again as I have other things to do as a result of the hurricane.
                by
                  Definitely one of the best purchases I've ever made ...
                  I purchased this Generac during the aftermath of Hurricane Laura. Pro's: Very little assembly was needed before it was ready for service. Excellent quality of construction. Has a good set of features to make it easy to use and keep it in service as long as it is required. (Fuel gauge, hour meter, and quite a decent sized fuel tank) Con's: Pull start only. (Not necessarily a "negative" as there's no starter system/circuit to worry about going out, and no battery to maintain in the off season) The engine can be a little noisy, but with proper/common sense placement of the unit this can be mitigated. The COSense system can trip itself if you place the unit's exhaust near a wall or if the unit is in the corner of a building where the breeze could keep the exhaust from drifting away. (In other words, it's quite sensitive ... so keep that in mind with placement). Overall: It's not the cheapest generator, but in this case... you honestly get what you've paid for. If I could go back in time and have the choice of buying it again, I absolutely would. So far, I'm 100% satisfied after the very easy initial setup and figuring out the best way to place the unit to keep it in service. The unit does what it's supposed to, and has been worth every single red cent since it's purchase. Keep up the good work Generac, and please ... whatever you do, don't stoop to cutting corners like some of the other manufacturer's whose generators I've used before have in recent times. Sincerely, A satisfied customer named Stephen
                  by
                  Response from MarketingOct 9, 2020
                  Thank you for the rating, we appreciate your feedback. If you have any questions, please do not hesitate to contact our customer support team at 888-GENERAC (436-3722).
                    • Recommended
                    Easy assembly out of the box. Started on first try, after adding oil and gas. Not as loud as I ...
                    Easy assembly out of the box. Started on first try, after adding oil and gas. Not as loud as I thought it would be. Installing manual transfer switch to home soon, so we will be ready for a unexpected power outage.
                    by
                    • Verified Purchase
                    • Recommended
                    This Generator runs very well and provides nice clean power....I set the generator up in my girlf...
                    This Generator runs very well and provides nice clean power....I set the generator up in my girlfriend's house with a transfer switch and installed a tri-fuel (gasoline - natural gas - propane) conversion kit....we will be using propane as the primary fuel....contrary to some reviews the generator runs great on propane....
                    by
                    Response from GeneracJul 12, 2018
                    Thank you for the great review, we appreciate your feedback! Generac
                    • DIY
                    • Recommended
                    2 found this review helpful
                    Overall pretty good so far, but obviously no experience with long term durability. Convenient installation is a challenge.
                    Unit was fairly easy to setup and get running. It was easier to move around and get in position than I expected. Started right up, and I tested it with a light duty extension cord and a lamp just to make sure it functioned. It did. However, the hard part of using a unit like this is setting it up to get some real power into the house for emergencies. Running simple extension cords into the house to individual appliances etc.will work, but is pretty clumsy and inefficient. It is better to "hard wire" it into the service box, which allows much more flexibility and convenience. Easier said than done. It must be configured to absolutely disconnect the the service box from the grid when the generator is operating, and vice- versa. You can buy a kit to do this, but they aren't cheap (and not a breeze to connect up). I was able to work out my own way of accomplishing a very functional installation, but I am an engineer used to figuring stuff like that out (and having a small machine shop in my basement to make parts helps). So far so good, but time will tell if the unit has long term reliability.
                    by
                    • DIY
                    • Verified Purchase
                    • Recommended
                    5 found this review helpful
                    Good generator...Excellent Value
                    Assembly involved attaching the handle and the wheels...nothing complicated. After oil and gas were added to their respective tanks and "choke', fuel and power switches were turned on, it was ready for deployment. My initial pull of the cord did not do anything. After checking all around, I noticed that the cord for the spark plug was not attached. After attaching it, I gave it another pull and it worked! It was also relatively quiet for a generator of this size. Highly recommended. Pros: Clear Instructions, Nice Design, Easy Installation, Easy to Use, Great Sound QualityGreat
                    by
                    • Pro
                    • Recommended
                    7 found this review helpful
                    Solid and well built
                    Very well built. Was just what I expected. Ran for 3 hours so far and didn't skip a beat. Started right up on the first pull. This generator is 3 times more powerful than my old generator of 35 years. Could not run the whole house on old generator during power outages. This generator will surely get us through with more comfort. Surprised at how quite it is. Not as noisy as my old generator. Large fuel tank will mean longer run time between fill ups, compared to my old generator. I Can't wait till the next power outage to give the generator a really good test. It is a little heavy but not bad to move around since it does have a handle and wheels.
                    by
                    • DIY
                    • Verified Purchase
                    • Recommended
                    21 found this review helpful
                    very nice generator
                    This generator is better than expected. Nice compact frame with fold out handle. It also quieter than expected. During the last storm I borrowed a rigid generator which was much louder. Very large gas tank. Very easy to start. I was also impressed with the delivery. He actually brought it right into the garage for me. Very satisfied with purchase
                    by
                    • DIY
                    • Verified Purchase
                    • Recommended
                    4 found this review helpful
                    Great Generator
                    This is the first Generator I have bought and so far I am happy with the purchase! It was very easy to put together. It only took about 15 minutes from unpackaging to startup. It is a little loud, but not over bearing. I shut the power off to the house and started it up on the first pull! It ran great and most importantly it ran the jet pump, furnace, refridgerator, living room lights and TV, kitchen lights and bedroom lights and TV! Everything I needed to run! I used 2 15W energy saving bulbs in each room. One thing they should include is a funnel for the oil. Over all it is a great product!
                    by
                    • DIY
                    • Recommended
                    34 found this review helpful
                    So Far, So Good!
                    I got this generator 4 weeks ago and got my transfer switch wired up just in time for Hurricane Sandy. I lost power for 24 hours and ran the Generac for 10. The 6500 was more than enough to run my fridge, gas water heater, gas furnace, lights and outlets in select rooms with plenty of juice to spare. As a courtesy I powered 2 of my neighbors refrigerators as well. I was also happy with the noise level. I was expecting it to be much louder. I ran the generator in the shed with the doors open and fans running to keep airflowing.
                    by
                    • DIY
                    • Verified Purchase
                    • Recommended
                    42 found this review helpful
                    Showing 1-10 of 626 reviews