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GP6500 COsense® 50ST

Model #7683

Starting At

$849.00 MSRP Where To Buy


HomeLink Compatible

Generac GP Series 6500 COsense® 50ST Portable Generator

Generac’s GP6500 portable generator offers PowerRush™ Advanced Technology, which delivers more than a 40% increased starting capacity* allowing you to do more with less. Generac’s OHV engine and large-capacity steel fuel tank ensures extended engine life and run times, while the steel tube cradle provides added strength. The low-oil feature protects the generator from damage. The GP6500 can be easily transported across rough or difficult terrain with the heavy-duty wheels and easy fold-down handle. Even maintenance is a breeze, with the hour meter keeping track of necessary upkeep at regular intervals.

Featuring PowerRush™ ADVANCED TECHNOLOGY – Delivers over 40% more starting capacity allowing you to do more with less.*

Generac's durable OHV engine with splash lubrication provides a long engine life.

Large-capacity steel fuel tank with incorporated fuel gauge provides durability and up to a 10.5 hour run-time at 50% load.

Low-oil level shutdown automatically safeguards engine from damage.

Hardened 1-¼” steel-tube cradle for added durability and strength.

Hour meter tracks maintenance intervals.

Heavy-duty, never-flat wheels allow for easy portability.

Fold-down handle for sturdy portability and compact storage.

*Increases electrical current upon demand above rated output when starting electric motors.

Generac <strong>GP Series 6500 COsense® 50ST</strong> Portable Generator


The Power to Live. Work. Play.

Portable generators are a welcome addition to many activities at home, at work, and away. In an emergency, portable generators can provide critical backup power. They make camping and tailgating more comfortable. And contractors appreciate the flexibility portable power brings to the jobsite.

GP Series Accessories

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

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Rated 5 out of 5 by from Great Product Easy Assembly!!! Very pleased with my purchase! Will work great for my race car trailer!
Date published: 2019-10-17
Rated 5 out of 5 by from Great Features--Concerned About COsense Switch Even though I have not used the generator for a prolonged period yet, I am impressed with the many features and top quality of this product. It has every feature I was looking for in a generator at a reasonable cost. It is very heavy, but that is to be expected with a generator of this size. The fact that it comes with a sturdy folding handle and wheels is certainly a plus. I am a bit concerned about the COsense feature after reading other reviews that describe problems with it. While it seems like a good idea in theory, it may not be a good idea in practice if it shuts the unit off frequently in a well ventilated area. I agree that a bypass feature should be added for those owners who are interested. I am definitely interested in such an option. The bypass option should be provided by Generac at a reasonable cost with appropriate installation instructions. This might prevent owners from tampering with the COsense switch themselves and possibly bypassing it incorrectly. Please let me know if Generac develops an approved bypass option.
Date published: 2019-09-18
Rated 3 out of 5 by from operating temp sensor is awful I had a Generac RS5500 that was stolen and I really liked it. I purchased a new GP6500 to replace it and it is awful during the day. When the temp outside reaches 90 degrees this generator shuts down!!! It has to constantly be watched until the evening when the sun is not shining on it. This is the craziest thing i've ever seen. How is someone supposed to work with a generator that is constantly shutting down during the day. I appreciate the technology but this is a bad purchase for any one working or using the generator in the summer. I'm going to have to purchase a different one. The customer service reps and technicians while very nice and helpful did not even know that it would do that.
Date published: 2019-09-17
Rated 4 out of 5 by from Generac 6500 CO works, but needs option to bypass CO sensor I have used a Generac generator ( XL4500 ) for over 20 years and have been very happy. I purchased your new 6500 and will use the old generator as backup. Your 6500 starts easily, works well, and handles my power loads very well. The generator uses a bit more fuel than I thought it should. An idle mode when not in heavy use would be helpful to conserve fuel. Also, I have had many problems with the CO sensor tripping off, even when the generator was fully outside. With swirling winds it has shut down for CO sense too many times. Installing a bypass switch for the CO sensor, with appropriate instructions verifying that you are not protected from CO, would be helpful for places where people need to run the generator close to a building or under a roof away from rain/snow. It can be an easy redesign. I will use my generator in bypass mode successfully for a long time.
Date published: 2019-09-10
Rated 5 out of 5 by from Simply amazing Quiet and a complete work horse this product is absolutely amazing
Date published: 2019-09-05
Rated 4 out of 5 by from Quality out of the box, one pull start, only used 30 minutes as first start up trial. Unit packaging was quality, instructions and assembly of wheels to frame and feet as well as handle was simple. Manual was easy to read, follow for warnings and pre-start up instructions. Unit started on first pull, expected maybe two just to get gas through system. Ran for about half hour to give it a bit of a break-in. Plugged in a few lights and other items to give each circuit a trial. No problems, ran and powered as expected. Not sure what other review stated about eco sense issue, I had no issue as I used the product outside and away from building approx. 4 feet. No issues on my initial trial run and expect this product to do the same after the next big storm hits our area.
Date published: 2019-08-16
Rated 5 out of 5 by from Amazing craftsmanship This will be my second generac generator I have purchased and both of them started right out of the box with the first soft pull. I let them run for a bit and then load tested them with no issues. Everything on this generator is solid stable and reliable . Hats off to the design team, and assembly workers at the manufacturing plant.
Date published: 2019-08-15
Rated 1 out of 5 by from Awful, do not buy with the COSense We have extended a tailpipe 5 feet up from generator exhaust, it still senses the Co2 and shuts off, no help from Generac other than taking it to a mechanic and I know the problem is the sensor. This has only been started to test, sadly, we were past the 90 days to get a full refund, we bought in case of a storm related power outage. Very disappointed. Now I will unhook the CoSense and this will void the warranty. Hard to go out and restart every 10 minutes if being used post storm. It was advertised as built in US with 2 year warranty, tag states made in China.
Date published: 2019-08-10
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GP6500 CO-SENSE? 49ST is rated 4.4 out of 5 by 32.
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