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Model # 6237

Internet # 204006863

Store SKU # 1000029600

8,000-Watt Air Cooled Automatic Standby Generator with 50 Amp Pre-Wired 10-Circuit Transfer Switch

This item has been discontinued.
The Home Depot no longer carries this specific product.

$2,397.00 /each
  • #1 Selling Home Standby Generator Brand
  • The Generac OHVI engine is purpose-built for extended run times
  • True Power Technology delivers best-in class power quality




Model # 6237

Internet # 204006863

Store SKU # 1000029600

Store SO SKU # 1000032969

Choose the #1 Selling Home Standby Generator Brand. Generac’s 8,000-Watt Guardian Series provides the automatic backup power you need to protect your home and family during a power outage. Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns. Control your power. Control your life.

  • System includes: 8,000-Watt generator, 50 Amp transfer switch, evolution controller, and composite mounting pad
  • 24/7 Generac customer care support 365 days a year, power outages do not always occur during normal working hours that is why we are standing by
  • Generac’s evolution controller features a dual-line, multilingual LCD display allowing for easy monitoring and management of generator functions, built-in hour meter, and external “at-a-glance” indicator lights
  • Certified for 18 in. installation to the home (3rd party-certified to NFPA standards provided it is located away from doors, windows and fresh air intakes, and unless otherwise directed by local codes)
  • Easy installation with an intelligent pre-wired transfer switch, re-engineered connection points, and composite mounting pad that eliminates the need for a poured concrete base (unless specified by local codes) get it installed 800-557-5221
  • Tool-less fuel conversion allows for easy switching between natural gas and LP fuels in the field
  • Rated for operation in areas with low natural gas pressure, significantly lower than published numbers for competitive standby systems (Generac is the only manufacturer to certify operation on only 3.5 in. of water column)
  • Sturdy galvanneal steel enclosure with rhinocoat finish for superior weather protection to withstand 150 MPH winds
  • True power technology provides clean, smooth operation of sensitive electronics and appliances
  • Mobile link compatible wireless remote monitoring system, receive status updates using your computer, tablet, or smart phone giving you peace of mind, even when you’re away (purchased separately)
  • Generac promise engineered and supported by a 5-year limited warranty and 24/7 customer care support 365 days a year
  • Click on the “more info” tab to download the specifications pdf to view the refer a friend rebate for the $50 savings
  • Mobile link and 26R battery purchased separately

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
CA (CARB) Compliant 
CARB Compliant 
Color Family 
Commercial / Residential 
Continuous Wattage 
Engine Displacement (cc) 
Engine Make 
OEM Branded 
Generator Features 
Hour Meter,Low Oil Shutdown,Overload Protection 
Operational volume (dB) 
Product Weight (lb.) 
360 lb 
Remote Monitoring 
Sold Separately 
Response time (sec.) 
UL Listing 
1-UL Listed 
Warranty / Certifications
Certifications and Listings 
1-UL Listed,CSA Listed 
ENERGY STAR Certified 
Manufacturer Warranty 
5 Year Limited 


Rated 3.9 out of 5 by 47 reviewers.
Rated 3.0 out of 5.0 by Generator has a few bugs , install is expensive! I got this generator and was very excited about getting it installed. I purchased it online and received it pretty fast. The generator when installed immediately gave a code. I had to call the repair people in it was covered under warranty but the had to replace a part in the unit and reprogram it as well. This is a new generator are you serious? These generators have issues when starting in cold weather, i got another code for long cranking in the winter months, when i went to start it manually a day latter when the temperature went up it started fine and the red light went green. I talked to the repair tech and he said this was a common problem with these units. This is not good cause what if i need the generator to work in the coldest months. Whats wrong with the manufacture, dont they know people will use this in the cold months, i know the sell the block heater, i inquired about this but apparently it wont solve the issue of the starting as that is related to condensation freezing in the orifice were the fuel sprays. Another thing to keep in mind is that the Generator will cost you a pretty penny to install in some cases as much as you paid for the generator. Also if you are doing the install your self to be eligible for insurance regulations you have to have it ESA approved. I had a licensed electrician install it after searching for the best price, when i called the generac authorized dealers they were asking for some ridiculous amounts to do the electrical work, I hired a local electrician, he charged me $600 to install/ w ESA certification compared to the other generac authorized dealers who were asking $2000 plus ESA certification. Do your shopping around on the install, I had no problems with the gas install as my friend did the gas part and charged me cost of materials. I also poured a concrete pad as i did not want to deal with sinking patio stones in the future. So far i have not needed to use it and hope in the event that i do, it will operated flawlessly, if not i will post to let everyone know.It does come on for its regular maintenance schedule which is a cool feature and make me feel a little more comfortable knowing that it is starting itself from time to time. Also this unit will not run your A/C, especially if you have other circuits used at the same time. If you want your A/C and dryer etc, invest in the 20kw unit.. Install will be the same price regardless. February 20, 2015
Rated 4.0 out of 5.0 by Great price, pretty good quality Overall a great generator. I only have a couple issues. 1) there was a defective limit switch in the transfer switch which destroyed the coil. The authorized service came out quickly, but it took 3 weeks to get the parts. I would think a little better quality testing would have caught this at the factory. 2.) The manual is out of date. The transfer switch configuration is backwards from what is printed in the manual and doesn't have dual coils as shown in the manual. Again, a little quality control should have caught this. Otherwise, the generator itself started up quickly, runs like a champ, and is pretty quiet. I installed it myself, but I am very experienced in electrical and plumbing. Most should probably hire an authorized service agent to hire as the manual is somewhat technical and installation requires quite a bit of electrical and gas piping knowledge. September 20, 2013
Rated 5.0 out of 5.0 by This is well designed from product to installation instructions. This unit comes with just about every thing needed for a successful installation. I only needed one 240 volt circuit breakers for my existing service panel, gas valve,gas pipe and fittings. I needed one pipe cut and threaded. Everything was available at Home Depot. Following the installation guide was easy, it is set up so you can do as much or as little as you want to at a time. When installation was complete, I went on Genrac's web site to get the activation code. I entered the code into the controller and followed the on screen prompts. Everything works perfectly and I can't wait for the next power outage! September 25, 2012
Rated 5.0 out of 5.0 by I CAN'T WAIT TO LOSE POWER I finally got this generator up and running, now I can't wait to lose power. We generally lose power on average once a month due to squirrels eating lines and blowing transformers. In addition to that, we lose power for an extended amount of time usually 2 times a year because of ice storms or high straight line winds. The installation was pretty straightforward so I'm told, I had an electrician do it. I also had a plumber do the gas line. Could've probably done the gas myself, but it was worth hiring someone to make sure it was done correctly. About 70% of the house is covered, the things that I figure must have--refridge, freezer, furnace, microwave, Xbox, etc. What wasn't apparent to me before now was that I was getting another circuit breaker box, that's what the included transfer switch really is. So it's a bonus, I now have plenty of additional switches and circuits for when I want to add stuff like a hot tub, room additions, etc. Highly recommended. February 10, 2013
Rated 5.0 out of 5.0 by Great I don't have it installed yet, but have had one of these before and just loved it. September 30, 2015
Rated 4.0 out of 5.0 by Nice, but mis-leading We thought this would be rated at 50 amps, not 35 amps. I should of read that the transfer switch was 50 amps, not the generator September 3, 2015
Rated 2.0 out of 5.0 by Warranty Problem Had a problem with unit 8 months before 2 yr labor warranty expired. Service company has not corrected problem after several visits. Labor warranty expired early November. Generac will not cover labor on my continuing problem even though the problem started prior to expiration of the labor warranty. Service man also says its hard to get Generac to replace parts that could be causing the problem. March 13, 2011
Rated 5.0 out of 5.0 by Generac 8KW auto Standby generator Easy for contractor to install. Give great piece of mind! September 1, 2015
  • 2015-10-05T14:23:21.085-05:00
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