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Generac XG4000 - 3600 Watt Portable Generator

(Based on expert analysis, manufacturer ratings and customer reviews)
2.5 out of 52.5 out of 52.5 out of 52.5 out of 52.5 out of 5
6 Reviews
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  • Features
  • Specs
  • 3
    Q&A 
  • 6
    Reviews
  • Articles
  • Shipping
  • Accessories

Grade

Style
Run Watts
3,600
Rated Watts
Surge Watts
4,500
Starting Watts
Fuel
Engine
OHVI
Need Help? Ask Our Generator Experts.


Generac OHVI Engine
Provides smooth power output
Engineered for performance w/full pressure engine lubrication

Oversized Full-Wrap Frame Tubing & Impact Resistant Corners
Durable construction which minimizes damage from rough handling

Illuminated Control Panel
Brightens up controls for better visibility

Power Bar
Keeps an eye on your wattage output for improved performance

Covered Outlets
Protects your connection from the environment

Start/Stop Fuel Shut-Off & Choke Controls
Easy to reach on the control panel for better control

Low-Oil Shut Down & Hour Meter
Protects engine from damage & tracks usage for maintenance


Model
  Model Number:5778
 Manufacturer:Generac
 Made in USA:Yes
Engine
 Brand:Generac OHVI
 Starting System:Recoil Start
 HP/CC:216 cc
 Consumer Engine Warranty:2 Years
 Commercial Engine Warranty:1 Year
 Engine RPM:3600 RPM
 Low Oil Alert/Shutdown:Yes
Product Specs
 Voltage120/240 Single-Phase
 Frequency:60 Hertz
 Auto Voltage Regulation:Yes
 Fuel TypeGasoline
 Rated Amps:15 Amps @ 240 Volts (Single Phase)
 Portability Kit:NeverFlat
 Tank Size:4.5 Gallons
 Run Time (50% Load):14 Hours
 Fuel Tank Material:Metal
 Fuel Gauge:Yes
 Decibel Rating @ 7m:N/A db(A)
 Idle Control:No
 Hour Meter:Yes
 Voltage Meter:No
 Lifting Eye:No
 Neutral Type:Bonded
 Battery:Not Applicable
Overview
 Weight:140 Lbs. (63.50 kilograms)
 Dimensions:27.5"L x 22"W x 24.5"H
(69.85 x 55.88 x 62.23 cm)
 Consumer Warranty:2 Years
 Commercial Warranty:1 Year
Download Documents


Outlets
NEMA 5-20R (GFCI)
NEMA 5-20R (GFCI)

NEMA L14-20R
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  3 Questions
Q: I AM CONSIDERING THIS GENERATOR TO POWER A 5TH WHEEL CAMPER TRAILER WITH A 15,000 BTU AIR CONDITIONER. IS IT ENOUGH POWER? WHAT IS THE DECIBEL RATING?
by WAYNE KLABUNDE from North Dakota on February 12, 2012

A: A typical 15k BTU AC unit can require 2800 watts at start-up but it is recommended to double check the starting amperage and use the following formula to calculate the true starting wattage required for the AC unit.

Starting Amps x Volts = Watts

Unfortunately, not all generator manufacturers publish the decibel ratings for their generators.

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.

At this time there are no db(A) ratings available on this model.

by Mike, Product Expert
Q: Jim, This is getting rediculus, not only you but every place I look they say the X series switches have been dis-continued, so what do we use ? I'm ready to order the XG7000E if I can find a switch that will work with it.
by Carl Funaro from New York on October 01, 2011

A: Have you considered this switch?

Reliance Controls Switch
by Mike, Product Expert
Q: I have just bought a XG8000E generator and I am unclear about how to ground it. Haven't needed to use it yet but I want to be prepared. The instructions are kind of vague on this and was hoping you could be a little more specific.
by Hugh Mulcahy from New York on February 25, 2011

A: There is a grounding lug at the bottom of the frame where you will see a green wire connected to a brass connection. From there you will need to connect your own green wire to a metal rod that is driven into the ground a minimum of 8 - 10 feet to meet most standard codes and then connect the green wire to the rod for proper grounding.
by Mike, Product Expert
Generac 5778 Reviews & Ratings
Write Review
6 Reviews  Sort by 
 
Dan
Purchased from Electric Generators Direct
Purchased 11/24/11
REVIEWED
JAN.
15
2012
1 out of 51 out of 51 out of 51 out of 51 out of 5
Quality Problems
I purchased an XG4000 and it had the following issues: The on/off switch did not work because it was not wired and the wires that were dangling were not long enough to connect to the switch. The output voltage at the 120VAC outlet was only 108VAC as measured with a voltmeter.
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10
Al
Richmond, TX
REVIEWED
AUG.
18
2010
1 out of 51 out of 51 out of 51 out of 51 out of 5
Generac Xg4000
I purchased this Generac generator in late February 2010, used it in March, and it has spent the rest of the time in the shop for all sorts of repairs. I have been arguing with Generac for about two months trying to get them to replace the darned piece of junk, but they keep having it repaired. So far I have had the ignition module replaced, brushes twice, and numerous wires and outlets. I would not recommend this generator to anyone.
Was this review helpful?
10
Tom
Wilkes Barre, PA
REVIEWED
DEC.
10
2011
1 out of 51 out of 51 out of 51 out of 51 out of 5
Misleading Reviews
Not sure why Generators Direct is including reviews for the 3600 watt unit that are dated August 2010 and September 2011. This is extremely misleading since the 3600 watt model you are now selling is brand new with a new motor and new alternator and has only been shipping from Generac since November. Showing reviews for the previous model (which was 4000 watts with a 220cc engine) is false advertising.
Mike, the Portable Generator Expert
Product Expert
Tom,
Generac considers the spec/engine change to be minor and that's why the model number was not changed. They consider this to be a rolling change because none of the major features/benefits changed. Generac still provides their 2-Year Residential and 1-Year Commercial Warranty on this model.
more
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00
Patrick
Main, NJ
REVIEWED
DEC.
03
2011
2 out of 52 out of 52 out of 52 out of 52 out of 5
Won't Shut Off !
I thought I did enough research on generators to make the right decision and purchased this one from Generac. Electric Generators Direct was great, the generator, not so much. After I received the generator I put the wheels on and filled it with oil. I don't understand why Generac doesn't give some indication of how much oil the engine takes? In order to not overfill it, I had to keep pouring a little and waiting to see where the level is while trying to peek down a small fill tube with a... more
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00
Tom
Levittown, NY
Purchased from Electric Generators Direct
Purchased 9/2/11
REVIEWED
SEP.
26
2011
5 out of 55 out of 55 out of 55 out of 55 out of 5
Generac 5778
I love it , ust the right size and watts to power my house and more. I'm glad I picked the OHVI engine for the durability. I can't believe how quiet it runs.
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00
Robert Zeno
Clarksboro, NJ
Purchased from Electric Generators Direct
Purchased 7/18/10
REVIEWED
AUG.
09
2010
5 out of 55 out of 55 out of 55 out of 55 out of 5
Kinked Gas Line
I tried everything I could to start the generator after it was delivered. I finally called a neighbor over and he noticed that it was not getting any gas. He saw that the gas line was kinked.

After he straightened out the hose it started right up and ran smooth. So far so good.
Was this review helpful?
00
Free Freight
  • Ships via Semi-Truck
  • Curb Side Delivery
  • Free to Lower 48 States
  • Standard Rates to Alaska, Hawaii
We currently CANNOT ship this product to California or any destination outside of the United States
 


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