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Generac 5943 - GP7500E 7500 Watt Electric Start Portable Generator

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Generac Electric Generators and Accessories
Model: 5943
(Based on expert analysis, manufacturer ratings and customer reviews)
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
372 Reviews
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  • Features
  • Specs
  • 16
    Q&A 
  • 372
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Style
Run Watts
7,500
Rated Watts
Surge Watts
9,375
Starting Watts
Fuel
Engine


Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Portable Emergency Generator
Energizes mission-critical appliances - except central a/c

Electric Start
Start the generator with the press of a button (battery included)

Generac OHV Engine
Splash type lubrication for improved engine life

Low Oil Pressure Safety Shutdown
Protects the engine and generator from lack of lubrication

Steel Gas Tank w/ Fuel Gauge
Durable gas tank with offset filler tube to minimize spillage

Heavy-Duty Cradle
1-1/4" diameter hardened steel frame to protect it from damage

Portability Kit
Oversized wheels with Never-flat technology
Heavy-duty fold-down handles that lock

Hour Meter
Built-in resets remind you of scheduled maintenance

Low Tone Muffler
Minimizes noise levels and maintains neighborhood sanity
Engine
Engine Brand
Generac
Starting System
12-Volt Button Start w/ Recoil
CC
420 CC
Consumer Engine Warranty
2 Years
Commercial Engine Warranty
1 Year
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Cast Iron Sleeve
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Alternator
Brush
Auto Voltage Regulation
Yes
Surge Watts
9375 Watts
Rated Watts
7500 Watts
Fuel Type
Gasoline
Rated Amps
31 @ 240 Volts (Single Phase) Amps
Portability Kit
Never Flat Wheels
Tank Size
8 Gallons
Run Time @ 50% Load
12 Hours
Fuel Tank Material
Metal
Fuel Gauge
Yes
Decibel Rating @ 7m
Not Measured by Manufacturer
Idle Control
No
Hour Meter
Yes
Voltage Meter
No
Lifting Eye
No
Battery
Included
Grade Type
Emergency
Plugs
NEMA 5-20R - Wall-Type
2
NEMA L14-30R
1
Overview
Made in USA
No
Assembly Required
Yes
Weight
201 Pounds
Product Style
Portable Generator
Product Length
27.25 Inches
Product Width
27 Inches
Product Height
25 Inches
Consumer Warranty
2 Years
Commercial Warranty
1 Year
UPC
696471059434
Model
5943
Download Documents


Outlets
NEMA 5-20R (Wall-Type)
NEMA 5-20R (Wall-Type)

NEMA L14-30R
Need Help? Call Our Experts.
View Accessories For This Product
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How To Library
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  16 Questions
Q: Is this generator electronics friendly? Do you know the specs for Total Harmonic Distortion (THD)?
by Dan from Michigan on January 06, 2014

A: Thanks for your inquiry.

The factory doesn't publish the THD% for this series. My recollection from our training was that they were in the "15-20%" threshold which would make them not suitable for sensitive electronics.

Outside of Honda presently, I haven't seen many portable synchronous generators that are any better as most are 15% or greater with their capacitor excitation. Of course, the Honda 6500 watt is twice the cost.


by Jared, Product Expert
Q: I was interested in buying the Generac GP17500E. I did my homework and believe it is the one for me. The questions I have are:

1. Can I convert it to propane?

2. How long will a 15lb propane tank last on this generator if I'm not powering the whole house and just the bare necessities?

Thank you Ryan

by Ryan from New York on October 16, 2013

A: Thanks for your inquiry.

We at Power Equipment Direct do not recommend converting your gasoline portable generator to an alternative fuel and doing so will void the manufacturers warranty and may cause damage to the generator itself. These conversions are not recommended by any of the generator manufacturers.

Gasoline has an Ignition Point of 475536 F. When a generator is manufactured to run solely on gasoline these temperatures are taken into consideration and the engine components are made to handle these temperatures.

Propane (LP) has an Ignition Point of 920-1020F and Natural Gas (NG) has an Ignition Point of 9001500F. These higher temperatures will cause damage over time on any gas only powered engine.

The following guidelines cover Honda engines (Also applies to other engine manufacturers) modified to run on fuels other than the one for which they were designed, such as converting an engine to run on propane (LP) or natural gas (NG).


Honda gasoline engines are certified to operate on unleaded fuel with a pump octane rating of 86 or higher, containing no more than 10% ethanol (E10).

Any change to the original configuration of a certified Honda engine is a potential violation of the Clean Air Act prohibition against tampering (40 CFR 1068.101(b)(1)). The tampering prohibition is important because poorly designed and installed modifications can increase emissions.

The Clean Air Act prohibits anyone from removing or rendering inoperative any device or design element installed on engines in compliance with regulations. These actions are considered tampering, which carries a civil penalty up to $37,500 for each engine or equipment in violation.

Engines converted by a third party (OEM, dealer, converter, etc.) to run on a different fuel type must be recertified with the EPA on the new fuel to comply with applicable emission standards. The third party must recertify under a new family and notify Honda to not include the modified engines in the original family.

Converted engines to be sold for use in California must meet CARB requirements and the converter must obtain approval from CARB. EPA certificates or tampering exemptions will not satisfy the requirement for CARB certification.

Once certified, the third party must remove the Honda emission control label and apply a compliant emission control label for the new fuel indicating the new certifying manufacturer. Honda will no longer assume any responsibility as the certifying manufacturer.

The Honda Distributor's Limited Warranty does not extend to parts affected or damaged by the conversion to or use of fuel other than the fuel for which the engine was originally designed.


Honda offers V-twin engines specifically designed and certified for use in LP/NG applications. The engines incorporate special design features that address the higher combustion temperatures and reduced lubrication to the valve guide area (since it is a dry fuel, not liquid). Please contact your sales representative or distributor for additional information.


Disclaimer: The guidance provided is intended for Honda dealer/distributor informational purposes only and not for the purpose of providing legal advice. You must contact the appropriate certifying agencies if you require information on how regulations apply to your specific application.

The regulations and additional information can be found at these web sites:

EPA - EPA

CARB - CARB


The run times will always vary based on the actual load put on the generator.



by Jared, Product Expert
Q: hi, i purchaed a Generac 7500 E from you recently. i was looking to see what type of Oil i need to purchase ? is it 2 cycle or 4 cycle ? or neither ? please let me know , thanks
by Brett from New York on January 28, 2013

A: The unit uses a standard motor oil (4-cycle) and you will need to refer to the chart in the owner's manual for the recommended viscosity. Unit comes with SAE 30 weight oil and most applications use 10W-30.

Per Section 2.7.1 of the manual:

"All oil should meet minimum American Petroleum Institute (API) Service Class SJ, SL or better. Use no special additives. Select the oil's viscosity grade according to the expected operating temperature (also see chart)."

• Above 40 F, use SAE 30
• Below 40 F and down to 10 F, use 10W-30
• Below 10 F, use synthetic 5W-30
by Jared, Product Expert
Q: Looking at the 7500E and wondering what is the type and rating of the Battery, Lead Acid , NiCad Metal Hydride?? Cost of replacement??
by Bob Vandegrift from Virginia on September 03, 2012

A: They use lead acid batteries that are AGM, sealed batteries. These typically cost between 40-50 if they need to be replaced & can be sourced from a Batteries Plus or an InterState battery store.
by Jared, Product Expert
Q: I am looking at a Generac 5943 7500 Watt generator. It is rated at 31 amps. Can I install a 30 amp 10 circuit transfer switch or do I need to go to a 50 amp transfer switch? The transfer switch is 150 ft away from the generator. Will 10 guage 4 conductor wire be adaquate or do I need to go to 8 guage 4 conductor wire?
by Dick Heaton from Massachusetts on August 04, 2012

A: You would need to go with 30A accessories to connect to the Generac model 5943. The largest outlet on the generator is 30A and that is what you match your accessories to.

You will definitely need to go to a larger gauge wire but still may have some voltage drop due to the distance.

Please consult with a certified electrician for installation and wire sizing assistance.

by Jared, Product Expert
Q: My electrician recommended getting a generator of 7500 or 8000 running watts. Does the 5943 qualify?

What is a "float charger"? Does this model have it?

Does the battery charges when it is running?

by Gary Stauffer from Virginia on July 14, 2012

A: Model 5943 is a good choice to meet your electricians recommendation.

A float charger allows you to keep the charger plugged in all the time where it will charge the battery when it gets low and stops charging when it is fully charged and won't over charge the battery.

Model 5943 does not come with a float charger. The charger supplied can only be plugged in for a max of 48 hours.

This is because you should start the generator weekly and if the battery seems low you can charge it with the supplied charger. This keeps the engine lubricated and ready to use when needed.

The generator does not charge the battery when it is running.
by Jared, Product Expert
Q: What"s the warranty on the Generac Model 5943?
by Terry Pfaff from Michigan on March 11, 2012

A: Consumer Warranty: 2 Years
Commercial Warranty: 1 Year
by Jared, Product Expert
Q: How many amps on 240 volt receptacle ??
Thanx, Jim

by Jim Mothershead from Maryland on February 07, 2012

A: You can find the maximum amperage rating listed in the specs section on the product page.

31 Amps @ 240 Volts (Single Phase)

by Jared, Product Expert
Q: What type/style of battery comes with the Generac 5943? I would like to know what type of a battery charger/maintainer the battery would require. I am thinking about a BatteryMINDer Charger/Maintainer/Desulfator - 1.3 Amp, 12 Volt, Model# 12117. This one is not recommended for deep cycle batteries.
by Tom Wagasky from Ohio on January 20, 2012

A: Generac does not provide the Group number for the battery that comes with the generator. It is listed as a 12V with 10Ahr and the generator comes with a batter charger already.

You can confirm with Generac customer support at 888-436-3722.

by Jared, Product Expert
Q: Is this model made in America?
by L Carr from Indiana on January 06, 2012

A: The engines are produced overseas and the generators are put together in Wisconsin at their facility.

If you are looking to purchase American made only then you need to look at the Generac XG & XP models which are entirely built in Wisconsin.

Generac Portable Generators

by Jared, Product Expert
Q: I just bought this generator form EGD and wand to know if it has a Voltage Regulator? and also would like to know if you recommend Synthetic Oil?Thanks John P>S I just orderd it 10-9-11 I paid more for it on your site then other sites but your site seems more profesional & provides more information.
by John Eichinger from New Jersey on October 10, 2011

A: John,

Per Generac their GP models do have Voltage Regulation and the recommended oil per Generac is based on temperature in your area and can be found in the owner's manual. If you are in a colder climate then synthetic oil is ok to use.

by Jared, Product Expert
Q: We are interested in the Generac 5943. We want to utilize a transfer system to power our fridge/freezer, submersible water pump, and enough lights to keep us from "breaking legs" in an emergency. Our home is 2800 sq ft. Do we need to accessory kit, or anything else? Are we "over killing" mode or are we on the right track?
by Charles McDonald from Connecticut on August 31, 2011

A: You're on the right track. The Generac 5943 is a great choice to power a small home.

With a transfer switch, it can energize 10-circuits in your home. Just doesn't have the strength to power a central air conditioner.

Here's a link to the Power Transfer System that we recommend with this unit:

Reliance Controls 30-Amp Power Transfer System
by Jared, Product Expert
Q: I planning to get a generator and, with a proper interlock, backfeed into my panel. I'm considering the Generac 75000E. It has a 240-volt 30-amp receptacle. Do any of these other generator have a receptacle greater than 30 amps in the same price range.
by Mike from Pennsylvania on August 31, 2011

A: First things first, NEVER backfeed into your panel!

This article explains what happens when you do:

How NOT to Connect a Portable Generator

Secondly, consider getting a Power Transfer System to connect to the generator.

How to Pick the Perfect Power Transfer System

Finally, this generator has a 30-amp outlet because it produces approximately 30-amp of power.

If you want a generator with a 50-amp outlet, you'll need a bigger generator around 10- to 17.5-kilowatts.
by Jared, Product Expert
Q: I just bought this generator from your company and am expecting it any day. I now need a transfer switch to accompany the generator. I am looking at the Reliance Controls 31410CRK switch. Will this compliment the generator and be sufficient?
by Pete Leclerc from Rhode Island on August 31, 2011

A: You chose wisely.

The 31410CRK is the perfect companion to this generator because it features 10-circuits.

Reliance Controls 3140CRK
by Jared, Product Expert
Q: Im looking at getting an emergency generator for storm/hurricane outages we have here in the Houston area.

It is for an 1800 sq-ft house. Id like to power as much of the house as possible to continue normal life as much as reasonable. I understand I wont be able to power the central A/C. Instead Ill have an 8000 BTU portable A/C unit Id like to power (about 1100 watts).

So, in general, the main things Id like to run are:
o Refrigerator
o Portable A/C
o 3 ceiling fans
o Microwave
o Washer
o Gas dryer
o Computer and TV
o Miscellaneous lights

Id like to power at least 6 single-pole circuits. 8 would be better, and 10 would be ideal (that would power all my circuits in the house). I dont need to power any double-pole circuits.

My main service panel is mounted outside, on the back of my house. Putting a transfer switch indoors would be quite involved. So mounting outside is desired.

The Generac 5943 GP7500E 7500 watt looks like it would fit what Im looking for.

Do you agree? What would you recommend for a manual transfer switch and/or any other items I need in order to get this set up right?

by Steve Collins from Texas on April 18, 2011

A: Steve,

The 7500watt generac is a good unit for basic needs. The main thing to understand is that you will have to manage your loads and this is best accomplished by using a manual transfer panel (outdoor) which would be mounted after your meter but before your main panel. This allows you to manage your entire panel (making sure you do not overload) by selecting the circuits you want to run as certain times. The link below is a model I recommend for this to be done. Please have certified electrician install this system due to the nature of the install.

Manual 200A Outdoor Transfer Panel

Manual 100A Outdoor Transfer Panel

by Jared, Product Expert
Q: I just received the generator I purchased from you (Generac GP5500 - 5500 Watt Portable Generator) and it comes with a bottle of oil. It does not say on the bottle what type it is. 30 weight or 10w30? Do you know so that it is the proper oil to use for the current temperature.
Thanks, Larry

by Larry from Ohio on March 26, 2011

A: Generac uses 10W30 in their kits that get sent with the portable generators.
by Jared, Product Expert
Generac 5943 Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
Pros
Easy To Use (85)
Price (57)
High Quality (55)
I'd Buy It Again (38)
Easy To Store (35)
Cons
Heavy (25)
Loud (13)
Unreliable (6)
Expensive (5)
Low Quality (5)
95% of respondents would recommend this product to a friend
372 Reviews  Sort by 
 
Keith T.
Mineral Bluff, GA
Purchased from Electric Generators Direct
Purchased 9/9/17
Most Helpful Positive Review
REVIEWED
OCT.
18
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best Name & Generator On The Market
This is absolutely a gift from above. After almost losing my sanity and dignity with our Powermate, I had given up. In a couple of weeks our power had gone out at least 3 times and the weather wasn't even that bad. So we realized not having a generator was not an option. My wife questioned a friend who happened to have a small Generac Home unit and loved it.

I did a lot of internet shopping before landing on Electric Generators Direct website. To find this unit was great, but to find it at... more
Pros: Durable, Easy To Use, Exceeded Expectations, Easy To Store
Keith Recommends This Generac Product
Keith's Experience With Electric Generators Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"My experience with Electric Generators Direct was great. I selected the lift gate service for delivery. When the shipper called for directions, much to my dismay they were shipping on a tractor trailer. We live in north Ga. The only tractor you will see on this mountain is the farm kind. No Worries! The shipper arranged a third party delivery with a smaller truck, it was still delivered within 5 days and at no extra cost to me. These people are a 10+."
 more
Was this review helpful?
11
Jeffrey B.
Lewiston, ME
Most Helpful Critical Review
REVIEWED
NOV.
02
2017
2 out of 52 out of 52 out of 52 out of 52 out of 5
Complete Waste Of Money
I had nothing but problems with this unit. After 6 hours of very light use (running a small pancake air compressor and a circular saw) the stator died and had to be replaced. That was done under warranty but took forever to get the part in. After 62 hours of use the motor lost compression and completely died. How can a unit be totally dead after only 62 hours of use?
Cons: Heavy, Loud, Expensive, Low Quality
Jeffrey Does Not Recommend This Product
Jared, the Portable Generator Expert
Product Expert
Jeffrey,
Very sorry you experienced issues with this generator. This was a very popular model and we rarely experienced any issues with these. Please be assured that Generac stands behind these generators and provides a 2-Year residential and 1-Year commercial warranty on this product.
more
Manufacturer Response
Brand Rep
Jeffrey,
We are sorry to learn of your frustrating experience. So that we can document your personal experience and learn more about the issues you've encountered, please contact us directly at 888-GENERAC (436-3722) upon your earliest convenience. We look forward to providing further assistance and apologize for any inconvenience this unfortunate scenario may have caused.
more
Was this review helpful?
11
David H.
Mulberry, FL
Purchased from Electric Generators Direct
Purchased 9/19/17
REVIEWED
NOV.
23
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awesome Generator
Awesome machine. I bought it for hurricane Irma and it worked perfectly. Highly recommended.
Pros: Easy To Use, Price, High Quality, I'd Buy It Again
David Recommends This Generac Product
Was this review helpful?
10
Thomas P.
Fort Lauderdale, FL
Purchased from Electric Generators Direct
Purchased 1/22/17
REVIEWED
FEB.
15
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Good Generator At A Good Price
First of all, this generator replaces a 15 year old 6500 watt Northstar Diesel generator so I had high expectations. The 7500 was simple to assemble and after adding oil and gas, it cranked right up. I connected it to the house for a couple hours under load and it performed as advertised running all the appliances except the central air. It seems to be a pretty sturdy machine although it has a few more plastic parts than I'd like. Another plus is that this generator is *much* quieter than the... more
Pros: Easy To Use, Easy To Store, Quiet
Thomas Recommends This Generac Product
Was this review helpful?
30
Jay C.
Melbourne, FL
Purchased from Electric Generators Direct
Purchased 9/14/17
REVIEWED
OCT.
06
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Love The Power Of This Bad Boy!
I have a Generac 4000 that I bought in 1999. I used it during hurricane Irma. We lost power for 6 days. I hooked it up to a separate breaker that an electrician installed on my panel. It worked great but it had trouble with my portable a/c unit. I could turn off a few outlets and everything was fine but I wanted to buy a newer more powerful generator so I could keep my pool pump going, my stove, portable a/c, microwave, water heater, every outlet in my house, all the ceiling fans, anything you... more
Pros: Easy To Use, High Quality, Reliable, Exceeded Expectations
Jay Recommends This Generac Product
Was this review helpful?
20
Scott H.
China, MI
REVIEWED
APR.
04
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Super Deal!
Lost power for 4 days. Been using a smaller / older generator, but always planned to upgrade. This last power outage forced me to finally start looking. I did not want some crappy engine. Ideally wanted a Honda engine or compatible, and wanted the most wattage & electric start but also wanted to keep under $1000. I found the Generac GP7500E. Generac designed & builds their own engines. Every review I read states it's a great engine with longevity. It looks very similar to the... more
Pros: Easy To Use, Price, High Quality, Easy To Store
Cons: No Cons
Scott Recommends This Generac Product
Was this review helpful?
20
Tom F.
Hilton, NY
Purchased from Electric Generators Direct
Purchased 3/14/17
REVIEWED
MAR.
17
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Happy Customer!
I just received my new generator and am blown away with the unit !! For the price, I can't imagine how you could get a better deal with as many extras included!! I will be telling everyone about this machine!!! My business depends on electricity and after the last wind storm we just had I will never be without electricity and heat again!!! Extremely surprised with the quality I got for this kind of price!!!
Pros: Easy To Use, Price, High Quality, Exceeded Expectations
Tom Recommends This Generac Product
Was this review helpful?
20
Danny T.
Purchased from Electric Generators Direct
Purchased 9/14/17
REVIEWED
NOV.
17
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Everything Works Good. Nice Generator!
My neighbor had one of these for years. That's why I bought it. It works good!
Pros: Easy To Use, High Quality, Reliable, Quiet
Cons: Heavy
Danny Recommends This Generac Product
Was this review helpful?
10
Mark W.
Purchased from Electric Generators Direct
Purchased 9/9/17
REVIEWED
NOV.
13
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
1st Generator I've Ever Bought.
Only used this product 1 time. Starts easy. Took very good care of my power needs.
Pros: Easy To Use, Price, High Quality, Easy To Store
Cons: Loud
Mark Recommends This Generac Product
Was this review helpful?
10
Rudy L.
Purchased from Electric Generators Direct
Purchased 10/17/17
REVIEWED
NOV.
10
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Dependable And Inexpensive
Easy start. Easy maintenance.
Pros: Easy To Use, High Quality, I'd Buy It Again, Reliable
Cons: Loud
Rudy Recommends This Generac Product
Was this review helpful?
10
Robert W.
Crystal River, FL
Purchased from Electric Generators Direct
Purchased 10/17/17
REVIEWED
NOV.
08
2017
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Nice Generator
Good generator, fits my needs well, also I find it is quieter than the Rigid I had before.
Pros: Easy To Use, Price, Quiet, Light Weight
Robert Recommends This Generac Product
Was this review helpful?
10
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
Lift Gate Services
  • Safely Lowers Products Off the Truck
  • Requires Special Hydraulic Lift
  • Free Lift Gate
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Shop for the Generac 5943 - GP7500E 7500 Watt Electric Start Portable Generator at Electric Generators Direct. Research Generac 696471059434 portable generators gas generator online. Find Generac GP7500E portable generators gas generator & GP7500E features and specifications. Get the best deal; compare Generac 5943 prices now. Buy the GP7500E direct and save.