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WEN

WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB Compliant, Black/orange

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Style: 4000W Inverter


Features

  • Dimensions: 19.8" L x 13.8" W x 18.9" H | Weight: 66.1 lb.amperage : 26.6 amps
  • Generate clean power to safely operate sensitive electronics such as phones, tablets, televisions and computers
  • Parallel-ready panel allows you to connect any two WEN inverter generators for increased wattage output
  • 212cc 4-stroke CARB-compliant OHV engine produces 4000 surge watts and 3500 rated watts
  • Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle

Description

Remember when you had clean and quiet portable power? The WEN 4,000-Watt Inverter Generator provides clean energy, free of voltage spikes and drops for safe use with laptops, phones, and other sensitive electronics. Our 212cc 4-stroke OHV engine produces up to 4000 surge watts and 3500 rated watts of power. Designed to mirror a pure sine wave, this generator limits total harmonic distortion to under 0.3 percent at no load and under 1.2 percent at full load, making it safe to run sensitive electronics. Our ultra-efficient 1.85-gallon tank provides over 7 hours of half-load run time. The fully-packed panel comes equipped with two three-prong 120V NEMA 5-20R receptacles, two 5V USB ports, and one 120V RV-ready TT-30R receptacle. Maximize fuel economy by engaging the eco-mode switch. This allows the generator's engine to automatically adjust its fuel consumption as items are plugged into and unplugged from the panel, preventing the unnecessary usage of gasoline. Need more energy? Easily link up two generators using a WEN Parallel Connection Kit (sold separately) in order to share wattage amongst multiple units. Low-oil and low-fuel automatic shutdown combine with the built-in overload protection and indicator lights to safeguard both your generator and your electronics from damage. And because its a WEN product, your open frame inverter generator comes backed by a two-year warranty, a nationwide network of skilled service technicians, and a friendly customer help line, all to make sure you remember WEN.

Brand: WEN


Wattage: 4000 watts


Fuel Type: Gasoline


Power Source: Gas Powered


Recommended Uses For Product: Residential, Recreational


Voltage: 120 Volts


Output Wattage: 4000 Watts


Special Feature: Portable


Included Components: Inverter generator with two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle See more


Color: Black/orange


Color: Black/orange


Runtime: 7 hours


Current Rating: 30 Amps


Power Source: Gas Powered


Frequency: 50 Hz


Voltage: 120 Volts


Wattage: 4000 watts


Engine Type: 4 Stroke


Recommended Uses For Product: Residential, Recreational


Ignition System Type: Electronic


Output Wattage: 4000 Watts


Running Wattage: 3500 Watts


Is Electric: No


Starting Wattage: 4000 Watts


Tank Volume: 1.85 Gallons


Fuel Type: Gasoline


Engine Displacement: 212 Cubic Centimeters


Additional Features: Portable


Global Trade Identification Number: 94


Model Name: RV-Ready


Included Components: Inverter generator with two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle


UPC: 044459991694


Model Number: GN400i


Brand Name: WEN


Manufacturer: WEN


Item Dimensions L x W x H: 19.8"L x 13.8"W x 18.9"H


Frequently asked questions

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This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • A gem of a Inverter Generator
Style: 4000W Inverter
I was looking for a emergency home generator and looked high and low for one that used inverter technology. I was concerned as a neighbor bought a generator without a inverter and ruined a refrigerator and TV beyond repair. His generator was a 4000 watt unit at the same price point as the WEN. While I can’t speak for the construction the WEN appears better finished and more solid. Both weigh about the same. Both are open framed. The setup is like any new engine, read the manual. I did use Pennzoil Ultra 10/30 Synthetic oil, Premium gas with one ounce of Lucas Oil Treatment as I had good luck with the combo in my lawnmower, car and motorcycle. Absolutely no problems with set up and breaking in the WEN. There is a grounding wire tap on the control panel which I did attach to ground the generator as it was close to our main water inlet. Grounding the generator makes sense as electronics are extremely sensitive! An ounce of prevention now can save hundreds or thousands latter. My installation is in a home. I know nothing about use in RV’s or campers, but would think a ground makes sense there too. For me the WEN is an affordable and so far reliable Inverter generator! I think it’s a steal! Thinking of buying another so as not to stress out a single unit in long periods of use. Addendum: It’s been over a year and half now and the WEN is still doing its thing without problem. I installed an Hour Meter and accumulated 247 hours. I’ve changed the oil every 48 hours, installed a magnetic drain plug and a new spark plug if it look fouled. I still use Lucas Oil Treatment one ounce at each oil change. I bought a second WEN and now run them in parallel without any problems. The pair can run a 12,000btu a/c, full size refrigerator and a 1000 what microwave. I do turn the a/c to fan when using the microwave as not to stress the generators. No failures, starts with one or two pulls, very little smoke and have not noticed any change in noise levels. It’s easier to move two 60+ pound generators than one 8,000 watt unit. My volt meter shows a steady output. With load shows 6,700 watts steady and peak of 7,250 watts in parallel and 3,320 watts as a single unit steady state. ... show more
Reviewed in the United States on June 11, 2022 by alan fenick
    • Easy setup and seems to be reliable
Style: 4000W Inverter
Easy setup, instructions were very clear and detailed. Generator is about 60-pounds, factory packaging was balanced and easy to move around. Open frame design makes it more convenient to move around, but I still had a friend or trustworthy foe on-call in case I needed it. Generator comes with 3 carb jets for different altitude ranges. The jet for sea-level to 3k ft is installed, 3k-6k and 6k-8k are in little zip-lock bags in the tools/parts bag. A small label is on the little zip-lock that says the altitude range for the jet, I'd recommend putting something in the zip-lock to show the altitude range. Instructions for changing the jets are included in the generator manual and in the little bags for the jets. Everything was included except fuel, oil, and the grounding equipment. Fuel is unleaded, 87 octane, holds about 2 gallons. Oil is .5L (a little over 2 cups or 1 pint). For grounding, I used a set of jumper cables and a piece of rebar for mobility. It started on the 2nd pull, ran smoothly. I didn't notice exhaust, although it was running outside on a windy day. It was louder than I expected, I couldn't have a normal conversation next to it. About the same noise as a gas lawnmower. Good generator, lots of available power. I'd get another if I need it. ... show more
Reviewed in the United States on July 17, 2022 by M. J. WELCH
    • GN400i - So far so good
Style: 4000W Inverter
FUNCTION- Pros: I bought this for my RV and for backup power in case of a power outage. The gn400i has a lot of bang for the buck. At 4000 peak/3500 rated watts, it should service my purpose well. Love having the 30 amp receptacle. Love the fact it is an inverter generator. It seems to run strong, pushing a 1500 watt heater without missing a beat....and that was in eco mode. This generator is also very economical. My 7+ hours of run time was on a 2/3-3/4 full tank. A full 1.85 gallons should last a long time. At 66lbs it is also light enough to move around. I can lift it into the bed of a truck with ease. Cons: While perfect for an RV, it's a little weak for running a household. I'll be plugging and unplugging a whole bunch during an outage. NOISE- Let's address the elephant in the room Pros: At least it isn't as loud as a Harley??? If you have an RV, then you know the a/c's are extremely loud and will drown out almost anything. I don't think noise will be an issue except maybe with a neighbor. I also have a long extension cord, so I can move the generator far away from the RV to reduce noise. Cons: This generator is LOUD. Period. I read somewhere that it was rated at 67dba. Where? It isn't in the manual. When I first started this thing, my first thought was there is no way this is in the 60's. According to my phone app, it was over 80dba next to the unit and between 72-76dba at about 20 feet. There is very little difference in noise between eco/regular mode. MAINTENANCE/BREAK-IN- Pros: This open frame generator is SO much easier to work on than my last Champion 2000 inverters. Everything is more accessible. Even with the panels off on the Champions, space was very limited for you hands. Wen was very thoughtful when designing the GN400i for service. Oil changes are easy....keep reading to see why that is important. And the fact they include an elevation kit and a handy dandy funnel is a real plus, too! Cons: After prepping the unit with Mobil 1 5w-30, I ran for 30 minutes and did an oil change. The magnetic dipstick was caked with shavings and the oil itself was black with lots of metallic specks. I've had motorcycles, atvs, lawn mowers and 3 other generators. I've never seen oil that dirty. I ran another 4-5 hours and changed the oil again. Again, it was black but at least without the metallic specks. After 7 hours, the oil looks decent but the dipstick is still coming out black. I'll likely change oil again at 10-15 hours. All this to say, if you buy one of these plan on 3-4 oil changes during the initial break-in to flush the engine prior to regular use. EDIT: After sitting unused for 6 months (Sep 2021), fired right up. Runs one of my 15k btu a/c's in my 5th wheel just fine (one unit, won't run both). Still happy. EDIT2: First Power Outage since I purchased. Pulled the generator out after sitting another year in storage (Oct 2022). Started on the 5th pull. Purred like a kitten while running my 2 refrigerators. EDIT3: Dry camping trip coming up. Got out to make sure it would fire up. Started on 2nd pull. (April 2023). Strongly recommend Stabil and running the fuel out of the carb. Put about 30 hours on it. Ran like a champ! ... show more
Reviewed in the United States on March 3, 2021 by JB

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