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Model # 6437

Internet # 204006865

11,000-Watt Air Cooled Automatic Standby Generator with 50 Amp 12-Circuit Transfer Switch

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

Was   $2,959.00
$2,607.30 /each

Save $351.70 (12%) through 11/30/2015

  • #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 # 6437

Internet # 204006865

Store SO SKU # 1000032973

Choose the #1 Selling Home Standby Generator Brand. Generac’s 11,000-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: 11,000-Watt generator, 50 Amp transfer switch, evolution controller and composite mounting pad, mobile link and 26R battery purchased separately
  • 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 OHVI engine is purpose-built to run dependably for extended periods, delivering power when you need it most
  • Generac 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 maximum continuous power capacity (LP): 11,000-Watt rated maximum continuous power capacity (NG): 10,000-Watt
  • 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 (8,000-Watt-17,000-Watt)
  • 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
  • Does not come with a 120-Volt GFCI outlet

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.) 
407 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 4.8 out of 5 by 131 reviewers.
Rated 5.0 out of 5.0 by Great product...peace of mind. After two major storms in our area over two years, plus many minor outages on our area over decades, we finally invested in a Generac. While we are actually in progress of getting the transfer switch replaced (under warranty), we've been very happy with it and can now rest knowing we will be covered in any future storms. November 12, 2015
Rated 5.0 out of 5.0 by This is an automatic turn on generator which is good for me since I am 70 years old and don't want to have to deal with power outages manually I have a peace of mind having had this Guardian Series Generac whole house generator installed. Thankyou November 10, 2015
Rated 5.0 out of 5.0 by Love it so far We had our first power failure about three weeks ago and it was the first real test for my generator and it passed with flying colors. It was a little noisy but at least I had lights and air conditioning for the four hours we were out. Two of my neighbors came over to at least be able to watch TV and have a cold one or two and it was fun to be the only guy on the block with lights. Glad I invested in this and I hope it lasts a good long time as I'm sure it will. It looks pretty good too on the side of my house and not an eyesore. You'll be glad you invested in one of these I can assure you. Ken at the Jersey Shore. September 10, 2015
Rated 5.0 out of 5.0 by This generator is perfect for a rural home. We lived in our home that we built 20 years ago... for 20 winters... and several power outages... and worried about frozen pipes and heat and water unavailability each season. I finally decided the purchase of a Generac generator (11 KW) would be WELL worth it! The unit looks great, is quiet, was installed very professionally, and I CAN SLEEP at night in the winter!! Anyone who lives in a rural setting, who experiences occasional power outages, would be much happier if they invested in one of these units. The piece of mind is priceless. October 3, 2015
Rated 4.0 out of 5.0 by This product is what we've been looking for in a Generator. Before purchasing this product we did some research, but found Generac was the one for us. The staff was very knowledgable, courteous and answered all of our questions. On the day of installation Jason, Charlie and Exavier were on time, installation was very quick, as everyone knew exactly what they were doing. The day of the weekly test, it performed beautifully. This gives us such peace of mind. We would highly recommend you to anyone we know that wants a generator. October 6, 2015
Rated 5.0 out of 5.0 by Peace of Mind Our neighbor routinely experiences power outages. I finally got fed up wheeling out our portable gas generator to hook up to our sump pump & refrigerator. Having this 11KW Generac generator gives us peace of mind, & the ability to be away from home without having to worry about power outages. September 29, 2015
Rated 5.0 out of 5.0 by Works great! Have had my generator for just over a year now and have had 2 outages. My Generac kicked on without hesitation and kept the lights on for my wife while I was out of town for the wknd. It's comforting knowing that she doesn't have to worry while I'm gone. September 30, 2015
Rated 5.0 out of 5.0 by 11kw generator I purchased the 11kw generator to run a 1500sq ft house and my garage during a power outage. We have several power outages in this area throughout the year and a generator was a must-have item on my list for my new home. My generator transfers flawlessly in seven seconds when the power goes out. It is so unnoticeable that I did not even know my power was out one day until I went outside and heard the generator running! I have propane that runs my heat, on-demand water heater, stove, and dryer. I still need electricity to run all the propane items except the stove. I was very worried about a power outage during the winter because I have no backup heat. The generator has come on numerous times since purchased one year ago and life went on with no problems. I LOVE THIS GENERATOR! September 10, 2015
  • 2015-11-26 T10:46:16.263-06:00
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