Generac 15,000-Watt Gasoline Powered Portable Generator with OHVI Engine-5734 - The Home Depot
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Model # 5734

Internet # 100662532

15,000-Watt Gasoline Powered Portable Generator with OHVI Engine

Generac 15,000-Watt Gasoline Powered Portable Generator with OHVI Engine

This item has been discontinued.
The Home Depot no longer carries this specific product.

$2,399.00 / each


Model # 5734

Internet # 100662532

Featuring never-flat wheels, low-tone mufflers and low-oil shutdown, the Generac GP 15,000-Watt Gasoline Powered Portable Generator with OHVI Engine offers quiet, dependable performance when you need energy. An idle control increases fuel efficiency and the included wheel kit and lifting eye allow for effortless transportation. This item cannot be returned.

  • 16 Gal. fuel tank runs the generator continuously up to 10 hours at half load; idle control for improved fuel efficiency
  • OHVI engine is designed for extended run times for use at jobsites or for an emergency backup power source
  • Circuit breaker protected outlets for added safety
  • Low-tone mufflers offer whisper-quiet operation
  • Fuel gauge keeps you informed of fuel levels
  • Electronic ignition for easy start up
  • Never-flat wheels and included wheel kit and lifting eye for easier transport
  • 15,000-Watt running and 22,500-Watt peak power provides reliable power on the go
  • Click on the “more info” tab to download the specifications pdf to view the Wattage requirement guide
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
48.5 in 
Assembled Height (in.) 
39.5 in 
Assembled Width (in.) 
31 in 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
Auto idle control 
Automatic Voltage Regulation 
Built-in inverter 
CA (CARB) Compliant 
Not CARB Compliant 
Continuous Wattage 
Engine Displacement (cc) 
Engine Make 
OEM Branded 
Fuel Gauge 
Fuel tank capacity (gallons) 
Fuel type 
Full load fuel consumption (gallons/hour) 
Horsepower (hp) 
0 hp 
Low oil shutdown 
Number of circuits/outlets 
Operational volume (dB) 
Osha Required GFCI Outlets 
Peak Wattage 
Product Weight (lb.) 
363 lb 
Run time at 50% load (hours/tank) 
Voltage (volts) 
Wheel Kit Included 
Warranty / Certifications
Certifications and Listings 
EPA Approved 
Manufacturer Warranty 


Rated 4.6 out of 5 by 65 reviewers.
Rated 5.0 out of 5.0 by Love generac Love generac 15000 saved my life and my wife loves it too thanks March 8, 2015
Rated 5.0 out of 5.0 by Durablility Great product worked non -stop during a 2 day outage February 3, 2015
Rated 1.0 out of 5.0 by Generac 15kw generator Used it for the first time on 12 Feb 2014 during the ice storm here in Summerville, SC. It operated for less than 2 hours before the engine threw a rod. YES, it had OIL in it. Though out of warranty, contacted Generac by email...still waiting for reply. Hoping for a "good gesture" on their part. February 16, 2014
Rated 5.0 out of 5.0 by Seems quite good at this point. Have only run a few tests in the first 3 days of owning. Time will tell as to reliability and durability. Price reasonable. Noise level is pretty high but placement is critical. and in our case not a significant issue. Looked at others, but this seemed to exhibit best combination of size,price,reputation,and warranty. So far so good. December 21, 2014
Rated 5.0 out of 5.0 by Better than the rest. After extensive research, IMO this unit has all the spec's I require to run my home in an emergency power outage. After Irene and Sandy leaving me out of power for a combined 25 days, I don't have to split wood any more. This unit was more than adequate for running the 240v essentials in my home, furnace, water pump, water heater and my son's fish tanks. I suggest getting a unit that is a little more than you need. This one is 50 amps, My new GP15,000E was a lot quieter than I expected and the idle switch is great, only runs engine to speed as power is required. Generac should do a DB sound test on these units and post the results as it would no doubt better persuade folks to purchase these portable generators. It should also come with 4 locking wheels. November 15, 2014
Rated 5.0 out of 5.0 by Great Generator Best deal and performance for the money hands down. Generator doing exactly what i needed it to do. December 9, 2014
Rated 5.0 out of 5.0 by power to spare I just purchased my Generac and I must say it has the power to run everything I need it to run. I ran a test to see how it would perform and I have no complaints whatsoever. I will recommend it to everyone I know! November 21, 2014
Rated 4.0 out of 5.0 by Generac 15000 watt I haven't fired this baby up yet so my review is solely based on setup/assembly of the unit. The instructions were not so hot and there were nuts/bolts missing. However, if you are somewhat mechanically inclined and can read a diagram, it isn't too bad. The unit is bulky which makes the process cumbersome. You'll needed assistance placing the blocks underneath while you lift one end of the unit in order to install the wheels and foot. Other than that, it is a one person job. Once assembled, it can be moved easily even on a gravel driveway. i bought this unit based on the specs, other purchaser reviews and the Generac brand. I hope it operates up to my expectations...or at least well enough to please my hubby. January 6, 2015
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Curbside Truck Shipping (By Appointment) includes delivery to receiving area/dock for businesses or curbside for residential orders. The carrier will contact you to make a delivery appointment with a 4 hour window once the items have arrived at the local hub in your area. Delivery appointments are required.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.