Home > All Products > Generators > Portable Generators > GP Series > GP6500 COsense® 50ST
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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.

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Rated 5 out of 5 by from Starts right up! Just purchased this fall for the New England winters. We haven't had to use it YET, but kind of looking forward to it. Right out of the box, it started right up and continues to start the first pull while waiting to use. I did test it on the whole house and all important appliances ran without a hitch! This particular generator is quieter than I thought it would be
Date published: 2019-11-23
Rated 5 out of 5 by from starts ez and works excellent. been using it for camping with camper , runs everything with no problem. runs fairly quiet to , i don't mind , but helps keep peace.
Date published: 2019-11-13
Rated 5 out of 5 by from Best Gift EVER!!!! These days, living in CA isn't what it used to be. With 4 two day plus power outages between 10/9 and 10/30, we needed a generator. We purchased a GP6500, model G0076830. What a gift during these days. It can keep my husbands medical equipment and our refrigerator and freezer charged, with as little as 2 hours a day!!! Thank you Generac and Calaveras Lumber for making these days easier.
Date published: 2019-10-31
Rated 5 out of 5 by from Really well built I bought this during the Bay Area power shut off and it’s made my life a lot easier. It was easy to set up and it starts with ease. It’s been running a bunch of things in my house with no problem. It ran about 10 hours on a tank of gas. My only criticism is that I wish it had a better muffler or some type of insulation as it’s nosier than I thought it would be.
Date published: 2019-10-29
Rated 1 out of 5 by from Won’t even run a freezer or frig Just bought this product from Lowe’s today 10/27/2019 after pg&e shut off our power. Got it all hooked up and plugged in a small freezer and a frig. After ten minutes the gfi keeps tripping. Tried all 120v 20amp outlets and even the 240v and 30 amp the power keeps shutting off and the generator keeps running. I will be returning this product, sad to say. It looks like a great generator but failed me.
Date published: 2019-10-28
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
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GP6500 CO-SENSE? 50ST is rated 4.4 out of 5 by 37.
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