Internet #308474687

Model #WGen12000

WGen12000 15,000/12,000 Watt Gas Powered Portable Generator with Remote Start and Transfer Switch Outlet for Home Backup

  • Up to 11 hour run time with remote and electric start
  • Transfer and ST switch ready, ideal for large home backup power
  • 15000 peak watts and 12000 rated watts
  • See More Details

Frequently Bought Together


Product Overview

For your toughest power needs, the Westinghouse WGen12000 Portable Generator is an ultra duty generator engineered for strength. With 15,000 peak watts and 12,000 running watts, the WGen12000 is built with a brawny 713cc V-Twin OHV Westinghouse Engine to yield up to 11 hours of run time on a hefty 10.5 gallon (40 L) gas tank with a built-in fuel gauge. It features Push-Button Electric Start to make starting the WGen12000 effortless while the remote start key fob offers added ease from a distance. Transfer Switch Ready L14-30R and larger 14-50R outlets have the muscle to power all your major appliances like your air conditioner, refrigerator, and sump pump as well as lights or entertainment centers at the same time with a single cord hookup. It's easy to charge sensitive electronics because the WGen12000 produces less than 5%THD, allowing you to plug straight into its intuitive control panel. VFT Data Center displays real-time performance information to keep you up to date with regular maintenance. Constructed with a rugged steel frame with lift brackets, the WGen12000 is conveniently portable with an included set of heavy-duty never-flat wheels and handles to have your house, travel trailer, or job site powered in seconds. The WGen12000 is complete with a 3-Year Warranty and Lifetime Technical Support backed by our nationwide customer service and support network.
  • California residents
  • Perfect as a backup power source for larger homes or a dependable source of portable power
  • 12,000 running watts, 15,000 peak watts
  • Runs for up to 11 hours on a 10.5 gal. fuel tank with built-in fuel gauge
  • Powered by the ultra duty 713cc OHV V-Twin Westinghouse Engine constructed with a durable cast iron sleeve
  • Push-Button Electric Start pairs with a key fob for seamless Remote Start
  • Weighing 352 lb. with as low as 74 dBA operating volume
  • Safely powers sensitive electronics such as laptop computers, cell phones, and more with less than 5% THD
  • (2) 5-20R household duplex outlets, (1) L5-30R, (1) Transfer Switch Ready L14-30R 120/240-Volt twist-lock, (1) 120/240V 14-50R, and (2) USB ports with rubber outlet covers
  • VFT display gives you real time updates with the voltage output, frequency, and lifetime hours
  • Smart Idle automatically lowers idle speed with no load to enhance fuel efficiency and extend run times
  • Safe and convenient with automatic low oil shutdown, automatic voltage regulation and overload protection
  • EPA and CARB compliant
  • Backed by a 3-year warranty and lifetime technical support
  • Included: oil, funnel, battery charger, quick start guide and user manual
  • All Westinghouse portable generators are functionally tested in the factory and may contain minimum residual oil and/or fuel odor

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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WGen12000 15,000/12,000 Watt Gas Powered Portable Generator with Remote Start and Transfer Switch Outlet for Home Backup
15,000/12,000-Watt Dual Fuel Gasoline/Propane Powered Electric Start Portable Generator V-Twin 713 cc CARB Compliant12000-Watt Electric Start Gasoline Powered Portable Generator with V-Twin Engine
Brand WestinghousePulsarDUROMAX
NameDEWALT 8,000-Watt Gasoline Powered Electric Start Portable Generator with Idle Control, GFCI Outlets and CO ProtectWGen12000 15,000/12,000 Watt Gas Powered Portable Generator with Remote Start and Transfer Switch Outlet for Home Backup15,000/12,000-Watt Dual Fuel Gasoline/Propane Powered Electric Start Portable Generator V-Twin 713 cc CARB Compliant12000-Watt Electric Start Gasoline Powered Portable Generator with V-Twin Engine
Engine MakeOEM BrandedOEM BrandedOEM BrandedOEM Branded
CA (CARB) CompliantCARB CompliantCARB CompliantCARB CompliantCARB Compliant
Running Wattage8000120001200012000
Fuel TechnologySingle FuelSingle FuelDual FuelSingle Fuel
FeaturesAuto Idle Control,Fuel Gauge,Low Oil Shutdown,OSHA Required GFCI OutletsAuto Idle Control,Automatic Voltage Regulation,Built-in Fuel Gauge,Electric Start,Hour Meter,Low Oil Shutdown,Overload Protection,USB PortBuilt-in Fuel Gauge,Built-in Hour Meter,Dual Fuel,Electric Start,Fuel Gauge,GFCI Outlet(s),Hour Meter,Low Oil Shutdown,On/Off Switch,Replaceable Battery,Resettable Circuit BreakerAuto Idle Control,Automatic Voltage Regulation,Built-in Fuel Gauge,Built-in Hour Meter,Electric Start,Extended Handles,Fuel Gauge,GFCI Outlet(s),Low Oil Shutdown,Muffler,OSHA Required GFCI Outlets
Starting Wattage10000150001500015000
ApplicationJob Site,RecreationHome Standby,Job Site,RecreationHome Standby,Job Site,RecreationHome Standby,Job Site,Recreation
Start TypeElectric Switch,Recoil StartPush Button,RemoteElectric SwitchElectric Switch,Recoil Start
Voltage (volts)120/240120/240240120/240
Number of Outlets5757
View ProductView ProductView ProductView Product



Product Height (in.)
Product Length (in.)
Product Width (in.)


Home Standby,Job Site,Recreation
CA (CARB) Compliant
CARB Compliant
Color Family
Engine Displacement (cc)
Engine Make
OEM Branded
Auto Idle Control,Automatic Voltage Regulation,Built-in Fuel Gauge,Electric Start,Hour Meter,Low Oil Shutdown,Overload Protection,USB Port
Fuel Tank Capacity (gallons)
Fuel Technology
Single Fuel
Full load fuel consumption (gallons/hour)
Half-Load Run Time
Horsepower (hp)
Engine Lubricant,Oil Funnel,Spark Plug Wrench,Wheel Kit,Wireless Remote
Number of Outlets
Operational Volume (dB)
Outlet Type
120V 20A,120V 30A,120V 50A,240V 30A,240V 50A
Power/Fuel Type
Product Weight (lb.)
Running Wattage
Start Type
Push Button,Remote
Starting Wattage
Suggested Uses
Bench Tools,Large Appliances,Lights,Power Tools,RV A/C Unit,Small Appliances,Small Electronics,Sump Pump,Well Pump
Voltage (volts)

Warranty / Certifications

Certifications and Listings
CARB Compliant,EPA Approved
Manufacturer Warranty
3 Years Limited

Questions & Answers


when can we expect the WGen12000DF to be available again?

Asked by John September 30, 2020

The next shipment of WGen12000DF generators is expected in late October. Please stay tuned to our retailers for availability updates!

Does the generator have a pull start in case of a dead battery?

Asked by SW September 18, 2020

No, due to the size of the V-Twin Westinghouse Engine, the WGen12000 does not have a pull start.

When is the WGen12000 expected to be in stock again?

Asked by COtto1984 September 3, 2020

The WGen12000 is expected to be back in stock by November. Please stay tuned to our retailers for availability updates!

How many Amps does the WGen 12000 generate?

Asked by Liam August 25, 2020

The WGen12000 produces up to 50A @ 240V, 100A @120V (running amps) and 63A @ 240V, 125A @120V (peak amps).

When will this be available for purchase?

Asked by Ray August 11, 2020

The WGen12000 is expected to be back in stock late August 2020. Please stay tuned to our retailers for availability updates!

These aren't stocked anywhere. How long before they ship from the manufacturer/is there inventory?

Asked by Bob August 7, 2020

Thanks for your interest in the WGen12000! They are expected to be available by late August of 2020.

1) How long should the WGen12000 gas powered generator be run for break-in before putting under l...

Asked by Duckman August 2, 2020

We advise you to run the WGen12000 for the first day or two for the break-in period and change the oil within the first 20-25 hours of use. We do not recommend leaving your generator connected for longer than 8 hours at a time or overnight as this can lead to battery failure.

Can this generator run a Hobart iron man 230 mig welder if so would auto idle interfere with welding arches ?

Asked by K1 August 1, 2020

The WGen12000 will be able to run your Hobart Iron Man welder. Please double check the power requirements of your welder to ensure it is compatible with the WGen12000. The Smart Idle feature will automatically lower its engine speed if no load is attached.

Does it have copper windings or aluminum.

Asked by Noob August 1, 2020

The WGen12000 has copper windings.

Can it run a 5 ton ac unit in home

Asked by Ben July 24, 2020

The WGen12000 can run a 5 ton AC cooling system in your home, but we advise you to double check the wattage and power requirements of your specific make/model AC to ensure it is within the specifications of the WGen12000.

WGen12000 15,000/12,000 Watt Gas Powered Portable Generator with Remote Start and Transfer Switch Outlet for Home Backup - page 2

Customer Reviews

  • 329 Customer Reviews
  • 4.9 out of 5 stars overall
99% of customers recommended.
Overall Ratings
Sort By:
Corsicana, Texas
Great Features
Customer review from logo
Product requires some minor assembly but very simple. Have not operated the unit yet but I like the layout of the control panel. The battery charging port is a really nice feature. The terminals on the battery need to be located on top simplify battery connections. Also a place to store the spark plug tool and oil funnel would be nice. Changing the oil looks to be a messy encounter. Maybe extending the drain beyond the frame or enlarge the hole near the drain plug.
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Fast shipping. Great product. Used to power entire home...
Fast shipping. Great product. Used to power entire home in remote location in Idaho. Had an initial scare when the generator seemingly didn’t produce any power when tested for the first time with a load plugged into the 120V outlets. The outlets are all black and hard to see they were GFI. They were shipped from the factory tripped :( Paired this generator with the Westinghouse Smart Switch and a Generac 200A transfer switch. Great automatic backup solution.
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Chesapeake VA.
Large and powerful
Customer review from logo
Set up was very easy, nothing was damaged and all parts were included. You have to fill oil, which was provided. the first time starting was with gas and it started with no issues. I used propane and the engine sounded a little strange, there may be some setting that need to be adjusted or the regulator may need to be broken in. The unit is large but is easy to move with 5 gal of gas in the tank. I gave it 4 stars because of the sound it made with propane.
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Customer review from logo
My wife and I decided to invest in a generator after the most recent storm and sustained power outage. We’ve grown tired of emptying fridges and freezers and other inconveniences that go along with extended power outages. We haven’t had the chance to use it in that situation yet, but after extensive research and discussions with some electrician friends, I’m hope for the best with this. We decided to go bigger on the size to eliminate taxing the generator and the electric motors/pumps of the various things we intend to run. It’s a nice generator with real nice features. The build quality looks and feels solid and despite it’s weight, its easy to maneuver around and believe me when I say that I’m not in the best of shape. I am hopeful my family will get years of service from this thing.
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Newfoundland, NJ
Awesome Upgrade Unit!
Customer review from logo
I received my new generator today. Easy to assemble, need small hands to hook up the battery! Added oil and gas, started right up first try. Put a load on the unit, no problem at all!
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Solid and just what I needed
Customer review from logo
Perfect for hurricane season. Easy to start. Plenty of plugs.
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Full Featured
Customer review from logo
Its a little too early to tell but the machine is as described. It was well packaged but arrived with the sealed battery leaking and a small mess to clean up. I am working with the warranty dept now. Since we are in the middle of covid calls are not answered promptly. The frame needed to be squeezed a bit with a ratchet strap to install the lifting bar on top, but no big deal. I was happy to see it came with a batter as not all generators do. Assembly was easy and the machine started right up on Propane. Gas not tested yet. Running voltage was low but I have not put a load on it yet.
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Miami FL
Bad and Good
Customer review from logo
This is a plus/minus review. On the plus side, the generator pulls like a mule. It powers a 4 ton AC, freezer/fridge combo and a dozen LED lights without a problem. That is impressive. All on propane, which is the weaker of the two fuel options. On the minus side, I don't think the Westinghouse engineers ever took one of these gens out of the box and tried to start it. In no particular oder, the battery per factory hook up is backwards (see photo where I reversed Positive and Negative leads), the wheel placement interferes with the 220v plug (the wheel placement places way too much stain on the plug), the fuel selector is anything but straightforward, it is unclear from the quickstart manual about how much oil to put in. And my battery lost a cell during shipment. Westinghouse Support told me to go to a local auto parts store to get it replaced.
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Best investment I've made!!
Customer review from logo
This has been one of the best investments I've made so far!!! The wgen 12000 has out performed every job and tasks ive had. Lately with the power outages we have had, our Westinghouse generator has kept my family with power and as well as some of the neighbors around us keeping them warm and the appliances going Thank you Westinghouse!! Truly yours, From the Thompson family
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Franklin, LA
Customer review from logo
I previously purchased a WGen 7500/9000 to power a new mobile food trailer I recently purchased. The 7500/9000 ran the trailer perfectly but it ran at about 75-80% capacity. I bought the mobile food unit with one 10,000 BTU a/c, 6 foot hood system, commercial refrigerator, hot water heater, fresh water pumping system, etc. I was concerned that being in the Louisiana heat, I would need another a/c system for the mobile unit so I decided to install another. So I upgraded to the 12,000/15,000 and powered the unit. WOW! It almost seemed like the 12,000-15,000 laughed at being connected to the mobile food unit and said “is that it?” I’ve run the unit for 6 hrs 2 days in a row with everything running and still have gas left. It starts right up with 1 push, and the remote start is a nice feature as well. I would definitely recommend this generator for a food truck. The negative thing I have to say is that it is very loud. But I’m ok with the trade-off. I’ll take the power & deal with the sound.
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