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The Generac gp6500 - 6500 watt portable generator has been discontinued and is not available for purchase at this time.

Generac GP6500 - 6500 Watt Portable Generator

(Based on expert analysis, manufacturer ratings and customer reviews)
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
12 Reviews
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  • Features
  • Specs
  • 4
  • 12
  • Articles
  • Accessories

Run Watts
Rated Watts
Surge Watts
Starting Watts

Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Emergency Generator
Generates plenty of electricity to weather the storm
Powers refrigerator, sump pump, furnace fan, lights and more

Generac OHV Engine
High-quality engine with automatic low oil shutdown

Brushless Alternator
Produces safe, clean - near utility quality - electricity

Hour Meter
Built-in resets remind you of scheduled maintenance

Steel Fuel Tank and Gauge
Generates power up to 9 hours at half load

Mobility Kit
Never-flat tires and locking fold-down handles
  Model Number:5623
 Made in USA:No
 Starting System:Recoil Start
 HP/CC:389 cc
 Consumer Engine Warranty:2 Years
 Commercial Engine Warranty:1 Year
 Engine RPM:3600 RPM
 Low Oil Alert/Shutdown:Yes
 Cast Iron Sleeve:Yes
Product Specs
 Voltage120/240 Single-Phase
 Frequency:60 Hertz
 Auto Voltage Regulation:Not Necessary
 Fuel TypeGasoline
 Rated Amps:27 Amps @ 240 Volts (Single Phase)
 Portability Kit:Solid Rubber
 Tank Size:6.6 Gallons
 Run Time (50% Load):9 Hours
 Fuel Tank Material:Metal
 Fuel Gauge:Yes
 Decibel Rating @ 7m:Not Measured by Manufacturer 
 Idle Control:No
 Transfer Switch:Manual (Not Included)
 Weight:180 Lbs. (81.65 kilograms)
 Dimensions:33.5L x 26.5W x 27.5H
(85.09 x 67.31 x 69.85 cm)
 Consumer Warranty:2 Years
 Commercial Warranty:1 Year
Download Documents

NEMA 5-20R (Wall-Type)
NEMA 5-20R (Wall-Type)

NEMA L14-30R
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How To Library
  4 Questions
Q: I just bought a GP 5000. Will this be
able to run my 2 sump pumps in the case of an outage?

by Sandy Mairs from New York on September 23, 2011

A: Yes, you should definitely be able to run 2 sump pumps during a power outage.
by Mike, Product Expert

Q: Do you have the decible reading for the Generac GP6500....I'm looking for a fairly quiet unit in this watt range, and hoped you might have some suggestions.
by Jack Stratton from California on March 15, 2011

A: Unfortunately, Generac, like many other generator manufacturers, do not publish the decibel ratings for their generators. This unit does come equipped with a Low Tone Muffler for Quiet Operation but I donít have a decibel number to give you. Currently, there are no industry standards or requirements for generator manufacturers to follow when testing their generators for noise. Due to this, manufacturers can test the noise level under any conditions they choose and, therefore, the results are not very reliable as each company will test under conditions that are favorable to their products.
by Mike, Product Expert

Q: Jim: I want to buy a protective cover for my Generac 5623 6500W portable generator (33.5" x 26.5" x 27.5"). Any recommendations for a cover that will fit this model of generator?
by John G. Smith from Maryland on February 27, 2011

A: The Classic Accessories Large Cover will fit up to 8000 watts. We have tested these covers on all of the Generac GP model generators and other manufacturers.

Note: It is important to not include the wheels when measuring the width as the generator covers are not meant to cover them.

Large Cover

by Mike, Product Expert

Q: Can a Generac GP6500 be set up to run on LP?
by Anonymous on February 20, 2011

A: These units specifically designed to operate on gasoline only and if converted to LP the warranty would be void.
by Mike, Product Expert

Generac 5623 Reviews & Ratings
Overall Rating
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
I'd Buy It Again (1)
Reliable (1)
Easy To Use (1)
Durable (1)
I Wish The Muffler Were ... (1)
12 Reviews  Sort by 
Lonny Wagener
Greensburg, IN
Purchased from Electric Generators Direct
Purchased 2/18/10
Total Reviews
6 Reviews
Total Helpful Votes
28 Helpful Votes
5 out of 55 out of 55 out of 55 out of 55 out of 5
Nice Piece Of Equipment
I have a 6500 Watt generator and own a home with geothermal heat and electric water heater, and a gas fireplace for backup heat.

This 10 circuit switch is a tad bit large for my generator, but I wanted the capability to have lights, microwave, sump pump, and refrigerator circuits powered, or by turning these circuits off during the day, I can turn the hot water heater on to heat our water.

Once the water is hot, I can shut the 220 circuit off and turn all eight of the remaining circuits... more
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Purchased from Electric Generators Direct
Purchased 6/16/10
Total Reviews
2 Reviews
5 out of 55 out of 55 out of 55 out of 55 out of 5
Carburetor Problems
I've had my Model 5623 generator for several years now and have only one problem. The carburetor failed within the first 4 hours of operation due to a gasoline leak and was replaced under warranty. Last year the carburetor leaked just like the first time and I had it replaced. Other than those two instances, I've had no other problems with the generator. It starts on the second or third pull everytime. I run the generator for 30 - 40 minutes, under load once a month. There have only been two... more
Pros: Durable, Easy To Use, Reliable, I'd Buy It Again
Cons: I Wish The Muffler Were Quieter I Think It's Quite Loud
Richard Recommends This Generac Product
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Tolland, CT
Total Reviews
2 Reviews
5 out of 55 out of 55 out of 55 out of 55 out of 5
Both products are perfect. The generator started after 2 pulls. Tested the connections and worked great. The switch kit was easy to install if you're a little handy.

I was anxious to use it a couple of times this season but fortunately we didn't lose power.

I would recommend both the company and the products.
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Jack Mccormick
Tijeras, NM
Purchased from Electric Generators Direct
Purchased 12/16/10
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Generator
Great generator and Quick delivery. Just went back on your site and ordered a power cord.
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West Milford, NJ
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Purchase!
I bought this generator about a month ago for home emergencies. I haven't had to use it yet (hopefully never have to), but it started right up out of the box.

I really like the support I received from Electric Generators Direct.
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Charlie Parsons
Lake Wales, FL
Purchased from Electric Generators Direct
Purchased 8/23/10
5 out of 55 out of 55 out of 55 out of 55 out of 5
New Purchase
I ordered this 6500 generator late Monday afternoon, it was shipped out on Tuesday, and received in Florida on Friday afternoon in perfect condition. R&L Transport delivered down my driveway to my front porch!!!!!

After putting on the handles and tires I read the manual, then put in one half gallon of gas and let it set for 2 minutes. Then I pulled the starter rope and this thing started right up!!!!!

The pull-start rope is easy to pull, even for a old dude like me!!!!

I plugged... more
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Cameron Goeppert
Verdi, NV
Purchased from Electric Generators Direct
Purchased 8/14/10
5 out of 55 out of 55 out of 55 out of 55 out of 5
A True Quality Machine
Started with the first weak pull and ran for 14.5 hours straight with no problems at a fundraiser for my son.

The Generac 6500 powered more appliances than I could count and it kept chuggin! Easy to assemble as it took all of 8 minutes and then it fired up.

I can tell we will be able to depend on it this winter. Spend the money on quality because it is more expensive to buy junk twice.
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William Cooper
Mccalla, AL
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best Price Best Shipping
I Had a Generator Stolen and Needed One to Replace the Old One
I Got Twice the Generator For Almost 1/2 the Price From Electric Generators Direct.
Out of the Box, Installed the Wheels (Which Was Easy) Put in the Oil and Fuel
Opened, the Fuel Line to the Engine & Pulled the Rope One Time and It Started Up.
Who Needs An Electric Start When This Was So Easy?
If You Don'T Like Pulling the Rope Then Buy the One With the Electric Start.
I Will Never Buy Another Generator From a Retail... more
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Clint Borrell
Haddonfield, NJ
Purchased from Electric Generators Direct
Purchased 3/17/10
Total Reviews
2 Reviews
5 out of 55 out of 55 out of 55 out of 55 out of 5
Compact, Powerful, & Quick Delivery
I just received my Generac. It was delivered on time and in one piece. The delivery man rolled it into my garage since I was not there and my wife had to accept delivery.

The only assembly required was to attached the 2 front wheels and the two fold down handles which was a snap.

After assembly I added 1 qt of oil, 5 gallons of gas and pulled twice on the rope starter and she fired right up.

Since I might be away when the power goes out I had my wife try to start the Generac and she... more
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Dan Wojcik
Sycamore, IL
5 out of 55 out of 55 out of 55 out of 55 out of 5
Love The Weight Of It
I bought this generator after doing a lot of research. I got it in the garage and after oil and fuel, it fired right up (1st pull).

I love the weight of it with the wheels and handles. There's not much to assemble, and it came with oil and manual.

The Generac site has everything needed for reference and they are local for me Northern IL / WI.

The 6500 hooked up to my house for storms and ran everything except the water heater. I am very pleased. We shall see how she holds up... more
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Frank Dracman
Clay County, AR
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great For Emergency Power
Our rural area got hit with a bad ice storm, knocking out our electric service for over three weeks.

I purchased this generator on the second day, and had an electrician pull my meter and wire it to the house directly.

For the three weeks that I used it, all I had to do was keep pouring the gasoline into it, and change the oil about 4 times.

I could run my gas furnace, electric water heater, refrigerator a couple of lights and a TV with no problems. To be safe, I switched off the... more
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Shop for the Generac GP6500 - 6500 Watt Portable Generator at Electric Generators Direct. Research Generac 696471056235 portable generators online. Find Generac 5623 portable generators & Generac GP series 6500 watt generator features and specifications.