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  • Generac 5939 GP5500 5,500 Watt 389cc OHV Portable Gas Powered Generator
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Generac 5939 GP5500 5,500 Watt 389cc OHV Portable Gas Powered Generator

by Generac
| 19 answered questions

List Price: $846.00
Price: $689.00 & FREE Shipping. Details
You Save: $157.00 (19%)
In Stock.
Ships from and sold by Amazon.com.
Non-CARB Compliant
  • Generac's OHV engine with splash lubrication
  • Large-capacity steel fuel tank with incorporated fuel gauge
  • Low-oil level shutdown
  • Hardened 1 1/4" Steel Tube Cradle
  • Fold-down, locking handle and never-flat wheels
14 new from $687.99
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Frequently Bought Together

Generac 5939 GP5500 5,500 Watt 389cc OHV Portable Gas Powered Generator + Classic Accessories 79537 Generator Cover, Large, Black + No-Spill 1450 5-Gallon Poly Gas Can (CARB Compliant)
Price for all three: $743.29

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Generac 5940 GP6500 6,500 Watt 389cc OHV Portable Gas Powered Generator

Customer Rating 3.5 out of 5 stars   (59) 4.0 out of 5 stars   (247) 4.6 out of 5 stars   (34) 3.4 out of 5 stars   (22)
Price $689.00$395.54$594.23$789.00
Shipping FREE ShippingFREE ShippingFREE ShippingFREE Shipping
Sold By Amazon.comAmazon.comAmazon.comAmazon.com
Power Source gas-powered gas-powered gas-powered gas-powered
Wattage 5500 Watts 4400 Watts 5500 Watts 8000 Watts
Voltage 120 Volts 120 Volts 120 Volts 120 Volts
Length 28.75 inches 36 inches 27.2 inches 28.75 inches
Height 25 inches 24 inches 22 inches 25 inches
Width 26.75 inches 24 inches 20.5 inches 26.75 inches
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Special Offers and Product Promotions

Style: Non-CARB Compliant
  • Twelve-Month Financing: For a limited time, purchase $599 or more using the Amazon.com Store Card and get no interest for 12 months on your entire order if paid in full in 12 months. Interest will be charged to your account from the purchase date if the promotional balance is not paid in full within 12 months. Minimum monthly payments required. Subject to credit approval. 1-Click and phone orders do not apply. See complete details and restrictions.


Product Details

Style Name: Non-CARB Compliant
  • Product Dimensions: 28.8 x 26.8 x 25 inches ; 180 pounds
  • Shipping Weight: 193 pounds (View shipping rates and policies)
  • Shipping: This item is available for shipping in the U.S. except for California and to select countries outside the U.S.
  • ASIN: B0045DK79W
  • California residents: Click here for Proposition 65 warning.
  • Item model number: 5939
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (59 customer reviews)
  • Amazon Best Sellers Rank: #39,638 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

Style: Non-CARB Compliant

Power the fun stuff or cover an emergency with a GP Series portable generator. Affordable reliability and features not usually found on basic portable models make these a favorite for home use, camping, job sites or outdoor events.

Generac GP5500
The hardened steel-tube cradle, fold-down handle, and wheel kit ensure both durability and portability (see larger image).

 

Wattage charts
Determine your requirements for a portable generator: click here to view wattage charts.
Control panel
Circuit breaker protected outlets guard against circuit overload for reliable performance (see larger image).

See a larger image illustrating this generator's main features.

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

Reliability From the Start

Because of Generac’s focus on power generation, we know how to design an engine that can stand up to the long hours of continuous use generators can be required to run. Cast iron cylinders add longevity, not found on every portable generator engine.

Easily Accessible Controls

A portable generator needs to be ready for use at all times. Generac added maintenance reminders on the hour meter, so scheduled maintenance is easy to track, and the convenient fuel gauge provides at-a-glance fuel monitoring. Many portable models have controls located in inconvenient locations and are difficult to access quickly, especially in the dark. We gave control placement careful consideration, with comprehensive control sets conveniently located for easy access.

Framed for Durability

The hardened steel frame gives our portable generator cradles added strength and are a premium 1¼” thick, a full ¼” thicker in diameter than competitors' models. The addition of integrated brackets and impact resistant corners on most models gives contractors rugged options ideal for job site use.

What's in the Box

Generac GP5500-5939 GP Series 5,500-Watt 389-cc OHV Portable gas-powered generator (Non-CARB Compliant), wheel kit, handle, first oil supply, and manual.



Compare the Generac GP Series Portable Generators
Model # GP1800 GP3250 GP5000 GP5500 GP6500 GP6500E GP7500 GP7500E GP15000E GP17500E
49-State Model 5981 5982 5938 5939 5940 5941 5942 5943 5734 5735
CSA / Carb Models 5981-1 / NA 5982-1 / 5983 5974 / 5944 5975 / 5945 5976 / 5946 NA / NA 5977 / NA 5978 / NA NA / NA NA / NA
Running watts 1800 3250 5000 5500 6500 6500 7500 7500 15000 17500
Starting watts 2050 3750 6250 6875 8000 8000 9735 9735 22500 26250
Engine displacement 168cc 208cc 389cc 389cc 389cc 389cc 420cc 420cc 990cc 990cc
Engine type OHV OHV OHV OHV OHV OHV OHV OHV OHV OHV
Starting method Manual Manual Manual Manual Manual Electric / Manual Manual Electric / Manual Electric Electric
Battery -- -- -- -- -- Included -- Included Included Included
Low oil shutdown Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Fuel tank size (gallons) 3.5 (steel) 3.5 (steel) 7.2 (steel) 7.2 (steel) 7.2 (steel) 7.2 (steel) 8.0 (steel) 8.0 (steel) 16.0 (resin) 16.0 (resin)
Run time @ 50% load 10.5 hours 9.7 hours 10 hours 10 hours 10 hours 10 hours 12 hours 12 hours 10 hours 10 hours
Hour meter No No Yes Yes Yes Yes Yes Yes Yes Yes
Outlets (2) 5-20R 120V (2) 5-20R 120V
(1) L14-20R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(4) 5-20R 120V
(1) L14-30R
Twist-Lock 120/240V
(2) 5-20R 120V
(2) 5-20R GFCI
(2) L5-30R 120V Twist-Lock
(1) L14-30R 120/240V Twist-Lock
(1) 14X50R 120/240V
(1) 12VDC,10 Amp
(2) 5-20R 120V
(2) 5-20R GFCI
(2) L5-30R 120V Twist-Lock
(1) L14-30R 120/240V Twist-Lock
(1) 14X50R 120/240V
(1) 12VDC,10 Amp
Covered outlets No Yes Yes Yes Yes Yes Yes Yes Yes Yes
Handle style -- Folding Folding
& locking
Folding
& locking
Folding
& locking
Folding
& locking
Folding
& locking
Folding
& locking
Fixed Fixed
Wheel type -- 8-inch solid 9.5-inch solid 9.5-inch solid 9.5-inch solid 9.5-inch solid 9.5-inch solid 9.5-inch solid 12.3-inch pneumatic 12.3-inch pneumatic
Dimensions (LxWxH, inches) 23.5 x 18 x 18 23 x 22.5 x 21 28.75 x 26.75 x 25 28.75 x 26.75 x 25 28.75 x 26.75 x 25 28.75 x 26.75 x 25 28.75 x 26.75 x 26 28.75 x 26.75 x 26 48.5 x 31 x 39.5 48.5 x 31 x 39.5
Weight (pounds) 86 115 178 180 184 195 190 201 363 390
Warranty, residential 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited 2-year, limited
Warranty, commercial 1-year 1-year 1-year 1-year 1-year 1-year 1-year 1-year 1-year 1-year


Customer Questions & Answers

Customer Reviews

I only wish I had read Kenny's review before buying this Generator.
Marc S
I was truly amazed, all I did was set the choke to full, and with one pull the generator started the very first time!!!
rtbreeves
You'll waste more money in getting in fixed then it actually working.
KSticky

Most Helpful Customer Reviews

261 of 273 people found the following review helpful By Joe's Garage on August 10, 2011
Style Name: Non-CARB Compliant
We bought this Generac GP5500 as part of a deal with our electrician when he installed a transfer switch in out home.

I was impressed by the solid construction of this genset and the strong build of the frame/cage. The power generated is as advertised. It is not unduly loud either, and is held down to a reasonable sound level when the windows in the house are closed and the unit is running out in the driveway.

Anyway, I dutifully exercised this generator every month for a 15 minute run under load. It provided enough power to keep my essentials on in my home. I put about 5-6 oz. of fresh fuel with stabilizer in it for each run. After about 15 minutes under load, I switched off the load, and then ran it until the fuel ran out. I then turned off the fuel valve and put it back in the garage. I also changed the oil when it first hit 2.0 hours of run time.

After about 5 months of owning this machine, it suddenly started spewing fuel all over the ground during the monthly maintenance run. I contacted Generac for warranty service and the referred me to a local dealer. After transporting the generator to them, they had it for about a week. They said that the float in the carburetor was stuck open due to some corrosion. They claimed that this was due to bad fuel or fuel contaminated with water, or leaving the machine idle for too long without exercise. This boggled my mind since I have been very careful to prevent just this sort of issue.

They refused to even attempt to go get Generac to cover the cost of the repair and billed me $300.00. I explained to them that I followed all maintenance recommendations. The unit was kept in a dry garage without any fuel in the system between test runs. It had 2.
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86 of 88 people found the following review helpful By ken vann on August 26, 2012
Style Name: Non-CARB Compliant
I have solved my fuel leak problem. I own a two year old Generac GP 5500 (model 005623-1) that had this problem. It only has about 20 hours run time, but I keep fuel in it year round. I start and run for 30 minutes every 14 days.

Carburetor leaks are caused by a float stuck in the lower position. This can be caused by dirty/old fuel, or Ethanol and water mixing in the fuel. Temporary repairs can be made by lightly taping the carburetor, or by removing and shaking it to free up the float.

Inspection of the float needle showed it to be made of bright aluminum, with a synthetic tip. This needle had corrosion and pitting on it's body, while the synthetic tip had minor wear. It did not have an anodized coating for protection from corrosion. I believe this to be an engineering problem.

Mine has a Huayi Standard of Japan carburetor. Huayi Model #: P27-1, P23 and or P20-1. Not sure which model.

Internal carburetor parts are not available from Huayi or the generator manufacturers. The Huayi design is a clone of certain Honda carburetors, used on some models of GX-240, GX-340 & GX-390 engines. Honda parts or generic equivalents can be used for repairs. See Honda parts manuals for detailed drawings.

I recommend to use Honda Part #16011-ZA0-931 Float Valve, or equivalent, for all repairs to these carburetors. The Honda part is made of synthetic material. The generic parts appear to be made of Aluminum or Zinc with a dull finish. This finish may or may not resist corrosion. All examples came with a spring.

Here is a list of part numbers that are generic equivalents to the Honda part.
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48 of 52 people found the following review helpful By efan478 on May 19, 2012
Style Name: Non-CARB Compliant
Do not buy a Generac GP5500!. You will get a gas leak from the carb and they will not warranty. it is easy to fix and someone on youtube posted how to fix but the problem will recur over and over. Generac knows this is a bad carb problem by the manufacturer but refuse to help customers.Do yourself a favor and stay away from a Generac.
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36 of 38 people found the following review helpful By bfoy on August 21, 2012
Style Name: Non-CARB Compliant
I am writing this review shortly after buying a Generac GP5500 generator, in order to highlight one very odd shortcoming affecting vital routine maintenance: You must actually completely remove the fuel tank before you can get access to the spark plug. In fact, with the fuel tank in place, I can not even remove the spark plug wire, or reach in far enough to touch the spark plug. The tank is firmly bolted in place with four bolts; not only must these be removed, but also the fuel supply line and fuel return line. And to get easy access with your plug wrench, it is helpful to completely remove the upper frame support too. None of these parts have any quick-release features. Further, there is no mention of any of this in the manual (page 11, section 3.3.6). I called the manufacturer's hotline, and after some searching, the service person was able to confirm that "obstructing parts must be removed." Given the frequency with which spark plugs need to be removed, this seems an odd design flaw.
Although this generator is about the most hightly-rated model in its category, and is nominally well suited to my needs, I would not have purchased it if I had known about this flaw.
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