Qty:1
or
Sign in to turn on 1-Click ordering.

Other Sellers on Amazon
Add to Cart
$311.00
& FREE Shipping. Details
Sold by: TriciaNaidoo
Add to Cart
$288.01
+ $22.99 shipping
Sold by: techforless317
Add to Cart
$299.00
+ $20.00 shipping
Sold by: Old Dominion Electrical Supply
Have one to sell? Sell on Amazon

Image Unavailable

Image not available for
Color:
  • Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator
  • Sorry, this item is not available in
  • Image not available
  • To view this video download Flash Player
      

Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator

by Generac

Price: $311.48 & FREE Shipping. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
800 Watt
  • Clean power for sensitive electronics
  • Electronic circuit breakers protect against overloads
  • Low oil shutdown protection prevents
  • FlexPower? reduces fuel and noise
  • Control panel indicator lights
See more product details
Is this a gift? This item ships in its own packaging. To keep the contents concealed, select This will be a gift during checkout.
Special Shipping Information: This product cannot be returned to Amazon.com because it uses flammable liquids and gases, is classified as a hazardous material, or meets other criteria. Learn more

Save up to 50% on select Patio Furniture from Strathwood by Amazon
Receive up to 50% off on select outdoor furniture from Strathwood, featuring sofas, chairs, tables, and more. Shop the Sale.

Frequently Bought Together

Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator + No-Spill 1405 2-1/2-Gallon Poly Gas Can (CARB Compliant)
Price for both: $333.43

One of these items ships sooner than the other.

Buy the selected items together


Compare to Similar Generators

This item: Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator

Champion Power Equipment 42436 1500-Watt Portable Generator, CARB Compliant

Generac 5792 iX1600 1,600 Watt 99cc 4-Stroke OHV Gas Powered Portable Inverter Generator

Honeywell 6064 800 Watt 38cc 4-Stroke OHV Portable Gas Powered Inverter Generator

Customer Rating 2.6 out of 5 stars   (36) 4.5 out of 5 stars   (140) 2.7 out of 5 stars   (19) 2.4 out of 5 stars   (11)
Price $311.48$191.78$479.00$319.00
Shipping FREE ShippingFREE ShippingFree ShippingFREE Shipping
Sold By Amazon.comAmazon.comAcme ToolsAmazon.com
Power Source gas-powered gas-powered gasoline-powered gas-powered
Wattage 800 Watts 1500 Watts 1600 Watts 800 Watts
Voltage 120 Volts 120 Volts Information not provided 12 Volts
Length 18 inches 17.7 inches 11 inches 18 inches
Height 15 inches 14.8 inches 18 inches 15 inches
Width 10 inches 14 inches 21 inches 10 inches
  Add to CartAdd to CartAdd to CartAdd to Cart

Please help us improve this feature.  Tell us what you think of this feature.


Product Information

Size: 800 Watt
Technical Details
Part Number 5791
Item Weight29 pounds
Product Dimensions18 x 10 x 15 inches
Item model number5791
Size800 Watt
Style800 Watt
Power Sourcegas-powered
Voltage120 volts
Wattage800 watts
Item Package Quantity1
Batteries Included?No
Warranty DescriptionTwo year residential/One year commercial
  
Additional Information
ASINB002NKMG5M
Best Sellers Rank #21,721 in Patio, Lawn & Garden (See top 100)
Shipping Weight37 pounds (View shipping rates and policies)
ShippingThis item is available for shipping in the U.S. except for California and to select countries outside the U.S.
Shipping Advisory:This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
Date First AvailableAugust 24, 2009
  
Feedback
 

Product Description

Size: 800 Watt

Amazon.com

Designed for life on the road, Generac’s award winning iX Series is quiet and lightweight – almost anyone can handle this compact unit. Inverter technology gives these units less than 3% total harmonic distortion, providing clean and stable power that safely powers laptops, TVs, power tools and other sensitive electronics. Ideal for camping, tailgating and recreational use.

iX1400
800 watts of clean power to safely power sensitive electronics (see larger image).

Note for California residents: This model is not CARB-compliant. Units sold to California must be CARB-compliant.

In use
Ideal for recreational use (ix2000 model shown;
see larger image).

To determine your requirements for a portable generator, see this wattage chart sample.

How Inverter Technology Works

Inverter generators utilize a different type of alternator than standard generators to generate AC power. The raw power produced is converted from DC to AC power by a computer controlled inverter module. The engine speed varies depending on the electrical demand, which significantly reduces noise and fuel consumption compared to a standard portable. The end result is a portable generator with reduced weight and size and power that is ultra-clean, capable of safely powering sensitive electronics.

Lightweight and Compact

The iX Series is up to 40% lighter than a standard generator of equal watts. And the built-in handle makes it easy to move with minimal effort.

FlexPower™ Operation Modes

Use high mode for large loads or battery charging, or eco mode to save fuel and reduce sound levels even more.

What's in the Box

Generac iX800-5791 gas-powered portable inverter generator (Non-CARB Compliant), first oil supply, funnel, spark plug wrench, screwdriver, and manual.



Compare the Generac iX Series Portable Generators
Model # iX800 iX1400 iX1600 iX2000
Compliance 49 State CARB 49 State 49 State
Running/starting watts 800 / 850 1400 / 1450 1600 / 1650 2000 / 2200
Engine displacement 38cc 80cc 99cc 126cc
Fuel tank size (gallons) 0.5 0.7 0.8 1.0
Approx. run time @ 50% (hours) 3.6 5 4.9 4.7
Fuel tank Resin Steel Resin Resin
Circuit breaker protection 6.6 Amps AC 12.5 Amps AC
5 Amps DC
13.3 Amps AC
5 Amps DC
16.7 Amps AC
5 Amps DC
DC charging cable No Yes Yes Yes
Outlets 2 x 5-15R 2 x 5-15R
1 x 12V DC
2 x 5-15R
1 x 12V DC
2 x 5-20R
1 x 12V DC
Dimensions (LxWxH, inches) 18 x 10 x 15 21 x 11 x 18 21 x 11 x 18 22 x 11 x 18
Weight (pounds) 29 46 43.5 49.6

From the Manufacturer

Generac's iX Series inverter technology takes the raw power produced by the generator and passes it through a special electronic microprocessor to provide clean and stable power, safe for computers and other sensitive electronic devices. Designed for life on the road, its durable, lightweight, compact design with built-in handle offers portable power for camping, tailgating, and recreational use. Inverter generators utilize a different type of alternator than standard generators to generate AC power. The raw power produced by the generator is converted into AC power by a digital inverter module. The inverter technology reduces the generator's size and weight. But more importantly, it allows the engine to run at varying speeds, significantly reducing noise and fuel consumption levels. The Generac iX Series has clean consistent output power with less than 3% total harmonic distortion especially important with sensitive electronic devices such as computers and DVD players.

Customer Questions & Answers

Customer Reviews

Took to 2 authorized Generac service shops.
ThreeFootDraft
No matter who advertises for this product, better off to avoid this brand Generac means poor quality based on my experience.
high pockets
This is JUNK, save up a few more bucks and buy a Honda or Yamaha and have something dependable.
GeneratorUser

Most Helpful Customer Reviews

62 of 68 people found the following review helpful By ThreeFootDraft on July 23, 2010
Size Name: 800 Watt Verified Purchase
Follow up - August 23rd, 2010:

Generac finally replaced my leaking unit. Hours of work on my part. The new unit idles quite different. On normal mode it idles significantly lower and flucuates up and down. In the economy mode, it simply idles even lower. The first unit seemed to idle normal (who knows) or high. In economy mode it flucuated up and down as stated in the manual. The electrical outlets are different. The first unit had commercial 120v outlets - one plug vertical, one horizontal. I spent $50 for a commercial extension cord. The new unit has regular (parallel) plugs. Therefore I'll need to buy an adaptor. Unbelievable. If there are any more problems I simply will pay someone who knows what they are doing (Generac's service people do not) or throw the unit out. Stay away from this unit. And stay away from Generac.

June, 2010 - Unit was defective out of box. Significant oil leak from engine even when not running. Took to 2 authorized Generac service shops. Still leaks. Leak is where 2 aluminum machine surfaces come together. Still trying to get resolution. Generac customer service fair at best. Takes considerable time to reach a human being. The unit already looks 2 years old due to the handling by the repair people and I've never used it. Generac has still not offered to replace. They "don't make the motors". A great excuse. I will contact Amazon corporate office if necessary to tell them not to sell this company's products and file in small claims court if necessary against Generac. Please consider other manufacturers' if you are looking for a small generator. I may be contacted at nfre at comcast dot net for photos of leak. Thank you.
3 Comments Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
36 of 39 people found the following review helpful By Russgary on March 9, 2011
Size Name: 800 Watt
I bought this generator to use for charging a battery bank on an RV. I never got it to run for even 10 minutes, when I took it to the factory authorized repair depot they said it had water in the gas, they told Me this before working on it? The tank I fill My equipment with is used on 7 engines none of which had problems. The so called repair I had to pay for and accomplisehed nothing, I still cannot use the generator, and the factory refuses to warranty it. I have two other generators a 6 kw and a 1 kw both constant speed type one of which cost 99 dollars and puts this one to shame. Very poor showing and no warranty beware.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
22 of 23 people found the following review helpful By David C. Martin on April 16, 2011
Size Name: 800 Watt
Got this unit for a very low price through Amazon.com. Cranked it up and worked ok. Next day it would not hold voltage. took to authorized dealer. 4 weeks later told me the carborator was dirty and not covered by warranty. male bovineshit! the nit needed adjusting. a warranty charge. but why wait for the manufacture to come up with the payment when you can hit the owner with a $75 "clean carburetor" charge. What a rip off.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
27 of 31 people found the following review helpful By Ken H on January 5, 2011
Size Name: 800 Watt Verified Purchase
I bought the generator to use on my boat to occasounally keep the batteries up when camped away from the marina. I was very disappointed in the loud noise level. It is advertised and also marked on the box as "ultra quiet"; well it is as loud as a lawn mower under load, and I wouldn't want to listen to that noise for hours at a time, nor subject that to fellow boaters nearby. I had expected maybe something that wouldn't be a nuissance and may be nearly as quiet as a Honda. No way, this is unacceptable to have to listen to.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
15 of 17 people found the following review helpful By Bird Man on July 18, 2011
Size Name: 800 Watt Verified Purchase
Poor repair service. In the 7 months the repair company has had the thing it hasn't been touched. Generac won't approve the repair of a generator that didn't work right out of the box. Worst customer service i have ever seen. DO NOT BUY!!!
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
19 of 23 people found the following review helpful By Allen Leonard on October 22, 2010
Size Name: 800 Watt
The price, $285, was good. IT'S NOT as good as the small Yamaha I had but it is definitely worth the price.
It's a little noisy and not well-wired. If you look at the jumble of wires inside the case you'll see a lot of chintzy consumer electronics connectors made for very light indoor duty. The engine and inverter look well-made.
The ECO throttle is not steady, it wavers up and down with a steady load and it does not even come into play outside a narrow load range in the middle of the generators power, about 100 watts either side of mid-range 400 watts.
It starts easily. The oil level shutoff switch was coming on too early, even when the oil level was fine. It also came on whenever the genset was tilted at all. The factory said there's no adjustment so I disconnected the switch. I plan on using this genset on a Personal UltraLight Dirigible and I can't have it shutting off just because it's not perfectly level flight.
I put a tachometer/time log on it which rings every five hours and warns me to check the oil. This would've been a good original equipment item.
The mufflers not much good and I want to add a pipe to the output to quieten the high frequency noise coming from the exhaust valve clattering as it closes and opens.

I wanted to build my test airship as Cheeply! as possible or I would've used the Yammy or the Honda. This is about a third their price so I'm not surprized it ain't great. But it works fairly well.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again
10 of 11 people found the following review helpful By kris on July 30, 2011
Size Name: 800 Watt Verified Purchase
Purchased it as on open box item from Amazon.
Lesson learnt - If you wanted it by a certain date, tell Amazon to NOT use UPS. Their supply chain sucks.
They cannot intercept a parcel and hold at their office for pickup on the same day of supposed delivery.
It will only be available the next day. So beware. Have them ship by Fedex instead. Fedex can even
contact their truck drivers by radio on delivery day.

I puchased the generator to go camping and to power a laptop and a fan at 90F weather.
The generator ran for 15 minutes and died. The load was most likely less than 400W, just charging the
laptop and running a small box fan. The generator was supposed to supply 800W continuous.

It turns out the inverter board is bad. A known problem with this product line. I later saw reviews of the
1600W model not able to keep up more than 800W.

STAY AWAY FROM THIS GENERAC PRODUCT LINE.

However, Amazon is great to make good my loss, but is not without headaches.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback. If this review is inappropriate, please let us know.
Sorry, we failed to record your vote. Please try again

Customer Images

Most Recent Customer Reviews


Want to discover more products? You may find many from generator inverter shopping list.