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XT8500EFI COsense® Electronic Fuel Injection

Model #7247

Starting At

$1,499.00 MSRP
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XT8500EFI Portable Generator Features & Benefits

Generac’s XT8500EFI portable generator boasts electric start capabilities, consistently smooth power and enhanced protection from the elements to ensure reliable power is available when and where it’s needed most.  Also equipped with COsense® Technology that STOPS, ALERTS, SAVES.  Providing powerful protection against hazardous carbon monoxide.

XT8500EFI Portable Generator <strong>Features & Benefits</strong>
Generac 459cc EFI engine delivers the right amount of power to get the best performance and efficiency out of your engine

COsense® Technology - STOPS, ALERTS, SAVES.  Providing powerful protection against hazardous carbon monoxide.

TruePower™ technology provides clean, smooth operation of sensitive electronics, tools and appliances

Low-oil shutdown automatically safeguards engine from damage

Large-capacity fuel tank with incorporated fuel gauge provided durability and extended run times
Electric start provides easy and reliable start-up

Battery included; self-charging while in use

ControlGuard™ provide added protection to the control panel

Covered outlets provide added protection from the environment and rugged working conditions

Hour meter tracks maintenance intervals

10” solid wheels make portability easy and efficient

Fold-down locking handle allows for easy storage


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Rated 2 out of 5 by from Great generator if it will start! Bought this generator for power outages due to frequent storms. Started perfect when I purchased it and loved the ease of electric start. Problem-you cannot leave it more than a few days or it won’t start. It has 8 hours on it and will not start unless you jump it. Not what I was expecting for the cost! My old Honda lasted nearly 28 years without any issues until the gas tank rusted out. This is the reason why I purchased the Generac. Very disappointed for the reason that I am usually alone and the help of someone else is not always available.
Date published: 2023-11-18
Rated 1 out of 5 by from Trouble out of the box. No support Unit surged badly right out of the box. Would not provide reliable power when it was need desperately needed. Could t get support when it happened and now faced with decision on what to do with a useless heap of metal.
Date published: 2023-07-24
Rated 2 out of 5 by from If it works it works. But that's if it works After long storage battery dead. Customer service said had to disconnect battery we will ship a bra one. Well off days off storage so it should cut off the battery. I read the manual says on will drain it turn off. Nothing about discount. That was last fall. Took battery out Month ago one start was great left battery in month later won't start. Even with new battery. Plug is super dirty and chipped. Got a new one to put in this weekend. I am sure it's going to be a tough start. Now does a plug get so dirty on 38 hours of use? Going to change oil too. Don't know where fuel filter is either manual won't say and it doesn't look like a car filter. Also that list the part number for the plug but can't find out what type. I thought generac was a good brand. I was wrong. I wish I got a different brand that just starts up. I lost everything in the fridge because this refurb can't start past 38 hours of run time. Right now it turns but doesn't turn over
Date published: 2023-07-19
Rated 1 out of 5 by from DEAD unit & useless warranty WORTHLESS. Unit will not start, presumably due to dead battery (as many others have said) that will not take/hold a charge. Generac said they would replace the battery under warranty but after 6 months and numerous phone calls, the replacement battery has yet to be shipped out from the manufacturer.
Date published: 2023-07-07
Rated 1 out of 5 by from Ng This is a not a good product if the intention is to utilize during an emergency. The battery charge does not hold. It must be charged for 24 hours prior to usage. Not fit for emergency purposes
Date published: 2023-05-31
Rated 3 out of 5 by from Tough to Start Bought this generator recently for the electric start and EFI feature which should result in effortless start - for my wife and family. I have attempted to start this generator a few times and each time has been extremely difficult. It starts eventually and runs great once running - just takes AWHILE to get it going. Generac directed me to load and deliver my generator to a local dealer for service - I have no way to get it there. Would have liked a bit more effort to resolve my issue on a new generator.....
Date published: 2023-04-11
Rated 4 out of 5 by from Solid performer after fixing battery issue. Solid performer after fixing battery issue. The battery died after 6 months and would not hold a charge. After installing a new battery and a disconnect so the battery no longer had a drain on it, I also installed a motorcycle style trickle charger. It now works perfectly and the battery holds a charge. I keep the battery disconnected until it's time to use it. It is now a perfect generator after the $50 upgrade. Too bad Generac did make the improvements in the factory because it does take a certain amount of expertise and engineering to correct the problem but is doable if you have the right tools. I will attach some photos at a later date.
Date published: 2023-03-04
Rated 3 out of 5 by from Issues I would like this generator more if the battery lasted longer and if it would not have problems starting. After 3 batteries I believe I fixed the battery issue. However, sometimes it does not want to start. This is very frustrating when our power goes out. I can eventually start the generator, but it is not easy. And it is almost impossible to start with the pull start. Unfortunately, this generator cannot run our heat pump. That is my bad for not doing enough research. But once it is running, the generator can run everything else in the house. This is important because our house is all electric.
Date published: 2023-02-17
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XT8500EFI - 7247 is rated 2.7 out of 5 by 12.
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XT Series Accessories

Maximize your investment and maintain your Generac portable generator with a variety of accessories.