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Generac 5837 CorePower Series 7,000 Watt Air-Cooled Natural Gas/Liquid Propane Powered Standby Generator with Transfer Switch

3.5 out of 5 stars 47 customer reviews
| 55 answered questions

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  • Prepackaged system - 7,000 standby generator is prepackaged with a 50 amp transfer switch with eight circuit load center including breakers
  • Generac ohv engine is designed for reliability and long life
  • At least 10 db(a) quieter than competitive units and significantly quieter than a standard portable generator
  • Easy installation and maintenance - sides are quickly removed without tools for easy accessibility during initial installation and ongoing maintenance
  • CARB Compliant
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Note: This product is 300 lbs or heavier, which means our carriers may not be able to bring this item to your front door.

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Technical Details


Product Description

Generac 5837 new 7,000 CorePower Series standby generator is a complete generator and transfer switch system, priced more affordably than any other system in the market. It makes choosing an automatic generator over a portable the obvious choice to manage power outages. The compact design is engineered for easy maintenance and serviceability, and is ideal when space is at a premium. The 7,000 Generator is prepackaged with a 50 Amp transfer switch with eight circuit load center including breakers. It is at least 10dB quieter than other competitive units and significantly quieter than a standard portable generator. The engine is designed for reliability and a long life. The generator can be easily installed and maintained due to its easy to remove sides. The removable sides require no tools and allow for easy accessibility during the initial installation and future maintenance. Its lightweight and compact design help it fit into tight spaces. The weather protective composite polymer enclosure allows it to withstand even the harshest of weather conditions, including coastal areas. A mounting pad is included and it eliminates the need to pour a concrete base. The generator has fully automatic operation. This includes an automatic transfer switch, revolving field alternator design and automatic voltage regulation. It also has a main line circuit breaker and a timed trickle battery charger.

Product Information

Product Dimensions 24.4 x 30.2 x 33 inches
Item Weight 250 pounds
Shipping Weight 323 pounds
Department Home & Garden
Manufacturer Generac Power Systems Inc
ASIN B003XQWYW0
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 5837
Customer Reviews
3.5 out of 5 stars 47 customer reviews

3.5 out of 5 stars
Best Sellers Rank #187,637 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#390 in Patio, Lawn & Garden > Generators & Portable Power > Generators

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

This generator is perfect if you don't need to power the whole house. I got it to run a pair of sump pumps, refrigerator, furnace, and a handful of branch circuits for outlets and lights around the house.

By coincidence I'd bought this the spring before hurricane Irene and this unit did not disappoint. When we lost power for a few days, the gennie ran 24x7 without skipping a beat. We were the only house lit up with heat in a sea of darkness. As far as I'm concerned it paid for itself right there. I did have a high gas bill that month, but it was better than the alternative.

Caution! As I browsed the customer photos uploaded on this site, I see someone has ignorantly and dangerously put the generator under their deck, proclaiming that this helps reduce the noise. Apparentley he/she did not read the instructions which include a full page diagram of required clearances on all sides of the generator. For the reasons of proper airflow, proper access for regular maintenance, distance from exhaust containing (deadly) carbon monoxide AND National Fire Protection Agency regulations, the manual clearly states, among other points: Clearance at the top of the generator should be a minimum of 60 inches from any structure, overhang, or projections from the wall. The generator SHOULD NOT BE PLACED UNDER A DECK OR OTHER STRUCTURE. Don't be a dimwit, read the instructions for proper operation and your safety.

If you're going to install it yourself, then you also need to buy a car battery; it does not come with one. The type you need is a Group 26R with minimum 525 Cold Cranking Amps (CCA). You should replace this every 3 or 4 years at the most, especially in climates that go through a cold winter. You'll also need to supply wiring & conduit to connect back to your panel.
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I purchased this generator in March 2012, and I finally installed it in October -- one day before hurricane Sandy hit.
I was a hero when the power went out and the genny kicked in! Unlike the previous year when an October snowstorm left us powerless for a week.
This time I was prepared -- we had some lights, heat, fridge, and sump pump all powered. Little did I know there was a defect in the unit that would bring this comfort quickly to an end.
Day 2, evening, friends over who had no backup generator, 9:00 pm lights out, the hum of the generator stops.
I go outside and discover that the low battery light is lit and the generator will not turn over.
I measure the voltage at the battery and it reads 8 volts! How could this be?
I quickly pull the battery from our sump pump backup and wire it in. The genny starts and power is restored, but I have an uneasy feeling that this battery will soon die as well.
And it does not last 'till morning. I awaken to an unusual silence from outside instead of the usual hum of the genny.

It's Saturday and I call Generac customer support who refers me to a local dealer for repair -- at $250 per hour!
I had no choice. The repair took about 3 hours to replace a $60 Chinese-made battery charger at a cost of about $800.

After 5 months, Generac refunded around $250 of the bill as the unit was under "warranty."

Today, April 13, not 6 months after installation, the generator is again in distress. It failed during its weekly exercise operation and will not start.

I purchased this unit because it provided enough emergency power at a reasonable price -- or so I thought. The maintenance is becoming more expensive than the original cost of the generator.

I hope you have a better experience, and make sure you have a reasonable and competent service technician!
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I purchased this after Hurricane Irene shook up SW CT. I got a friend who is an electrician so my install cost was only around $2,300. The unit is VERY quiet and sure enough, we got SLAMMED with a brutal October Nor'Easter and the power went out AGAIN. No worries, within a minute the power was back on. The only items this would not power were my Central A/C range and dryer. Since I plan on converting the range and dryer to propane, then really the whole house will be covered. Keep in mind if you have sump pumps/electric hot water or heat, and a well pump, you should go with the 10k unit, this one wont be enough. Since my heat and hot water are propane, and I have city water, it is MORE than enough
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A hole exploded through the side of the unit after 90 seconds of use.

I purchased this unit from lowes Greenland, NH Store #1879. I was disappointed in the unit from the beginning. The power transfer switch is a sub-par build quality compared to Generac's Guardian series. The unit came with a lack of proper parts. Unit was Missing proper LP fuel injector. I contacted Generac it took them 3 weeks to deliver the part they failed to ship. The spark plug had been smashed into several pieces during the shipping process. After the spark plug and fuel injector was replaced the generator ran for 90 seconds before blowing a hole through the side.

Generac is a good company, however this product is defective
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This generator can't be beat for an entry level unit - in both price and power output. It arrived at its destination exactly as AMAZON said it would,with a call before it arrived by a professional and courteous team. Once installed,working as described. I'll never have to worry about a power outage again. I hope AMAZON continues selling this model.
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