Generac

GP8000E Watt Generator CO-Sense with Transfer Switch Outlet for Home Backup

|617 ratings
Item # 990557589
Current price is $899.00
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Highlights

  • Power Rush advanced technology delivers over 30% more starting capacity for enhanced performance
  • CO-Sense technology stops and alerts to protect against hazardous carbon monoxide
  • Durable OHV engine with splash lubrication ensures long engine life and idle control reduces noise while conserving fuel
  • Large-capacity steel fuel tank with fuel gauge provides up to 11-hour run-time at 50% load
  • Electric start model includes battery for easy operation
gp8000e watt generator co-sense with transfer switch outlet for home backup Generac GP8000E 8,000-watt gasoline portable generator, 3/4 front view with orange steel fuel tank and gauge, black tubular frame, control panel displaying CO-Sense badge and transfer switch outlet, visible battery and starter wiring, two-wheel cart with rubber tires and fold-down feet; PowerRush enhanced starting capacity makes it suitable for home backup and jobsite power.
GP8000E Watt Generator CO-Sense with Transfer Switch Outlet for Home Backup
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About this item

Product details

Powerful and Versatile Performance

The Generac GP8000E 8,000-Watt gasoline-powered portable generator is designed to handle a variety of applications with ease. Whether you need reliable power for job sites, home use, or outdoor events, this generator delivers dependable performance to meet your needs.

Enhanced Starting Capacity with PowerRush™ Technology

Equipped with Generac's innovative PowerRush™ advanced technology, the GP8000E provides over 30% more starting capacity. This feature allows you to power more devices and equipment simultaneously, making it an efficient solution for demanding tasks.

Convenient Electric Start

Starting the GP8000E is effortless thanks to its electric start functionality. This user-friendly feature ensures quick and hassle-free operation, saving you time and effort when you need power the most.

Affordable and Reliable Solution

Combining affordability with robust performance, the Generac GP8000E is a practical choice for those seeking a reliable portable generator. Its durable design and versatile capabilities make it a valuable addition to any power setup.

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Specifications

Engine Type: Generac OHV Engine

Hour Meter: Tracks maintenance intervals

Accessories Included: 25 ft extension cord, wheel and handle kit

Run Time: 13-hour gas run time / 16-hour propane run time at 50% load

Fuel Tank Capacity: 3-gallon gas tank or 20lb propane tank

Start Type: Electric Start

Safety Features: Low-oil level shutdown for engine protection

Compatibility: Homelink Transfer Switch Compatible

Additional Protection: CO Protection

Warnings and disclaimers

Ingestion Hazard

This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

Member ratings & reviews

4.6 out of 5 stars
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  1. 5 stars76% (470)
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  3. 3 stars2% (14)
  4. 2 stars2% (10)
  5. 1 star5% (30)
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Showing 1-3 of 617 reviews

Dec 30, 2025
Reviewer name: Ray A
5 out of 5 stars
5 out of 5 stars review

Solid, well-made unit.

This generator is everything it claims to be. Easy to set-up, use and is reliable. I hooked it up to my home for a test-run the day after I received it. It started up instantly and powered the entire "critical function" sub-panel in my home (HVAC, water/well, freezers/refrigerators, water heater (gas), water softener, garage door, washer/dryer (gas), WIFI/network and critical lights/outlets). We built our home in 1998 (just prior to "Y2K", ha!) and included the sub-panel. I toyed with the idea of now installing a whole-home generator - but that would have been an $8-10K investment - this was <$1K. For the roughly one power outage we experience every 2-3 years, this is a good, economical solution.

Review from generac.com
Helpful?6CERFK1ZWWG020001867981
Jan 30, 2026
Reviewer name: Norm
5 out of 5 stars
5 out of 5 stars review

Solid Generator

My generator has worked flawlessly since I purchased it. Unfortunately I have been unable to get it to work as I had intended, which is to run my pool circulation pump during winter power outages. I have verified through multiple electrical experts that my connection from the generator to the pool equipment is correct. My next step is to adjust the Hertz output down to 60 from the 62 it is currently producing. Any direction you can provide me to make that adjustment would be sincerely appreciated.

Review from generac.com
Helpful?6CERFK1ZWWG020001867981
Jun 15, 2026
Reviewer name: Chris59
5 out of 5 stars
5 out of 5 stars review

Awesome

I bought this after a heavy rain storm that knocked out the power. No power, no sump pump. Heavy rain forecast for the next day. Fortunately the storm passed without any issues. I am ready for the next storm.

Review from generac.com
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